7Baggers

Range Resources Corporation
(NYSE:RRC) 

RRC stock logo

Range Resources Corporation operates as an independent natural gas, natural gas liquids (NGLs), and oil company in the United States. The company engages in the exploration, development, and acquisition of natural gas and oil properties. As of December 31, 2020, the company owned and operated 1,310 ...

Founded: 1976
Full Time Employees: 655
Sector: Energy
Industry: Oil & Gas E&P

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Quarterly
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    Unit: USD2026-03-31 2025-09-30 2025-06-30 2025-03-31 2024-12-31 2024-09-30 2024-06-30 2024-03-31 2023-12-31 2023-09-30 2023-06-30 2023-03-31 2022-12-31 2022-09-30 2022-06-30 2022-03-31 2021-12-31 2021-09-30 2021-06-30 2021-03-31 2020-12-31 2020-09-30 2020-06-30 2020-03-31 2019-12-31 2019-09-30 2019-06-30 2019-03-31 2018-12-31 2018-09-30 2018-06-30 2018-03-31 2017-12-31 2017-09-30 2017-06-30 2017-03-31 2016-12-31 2016-09-30 2016-06-30 2016-03-31 2015-12-31 2015-09-30 2015-06-30 2015-03-31 2014-12-31 2014-09-30 2014-06-30 2014-03-31 2013-12-31 2013-09-30 2013-06-30 2012-12-31 2012-09-30 2012-06-30 2012-03-31 2011-12-31 2011-09-30 2011-06-30 2011-03-31 2010-12-31 2010-09-30 2010-06-30 2010-03-31 2009-12-31 2009-09-30 2009-06-30 2009-03-31 2008-12-31 2008-09-30 2008-06-30 2008-03-31 2007-12-31 2007-09-30 2007-06-30 2007-03-31 2006-12-31 2006-09-30 2006-06-30 2006-03-31 2005-12-31 2005-09-30 2005-06-30 2005-03-31 2004-12-31 2004-09-30 2004-06-30 2004-03-31 2003-12-31 2003-09-30 
                                                                                             
      revenues and other income:
                                                                                             
      natural gas, ngls and oil sales
    1,010,252,000 611,491,000 666,638,000 791,920,000 635,122,000 533,277,000 478,450,000 567,001,000 603,279,000 526,718,000 468,382,000 736,282,000 1,086,697,000 1,435,152,000 1,356,892,000 1,032,351,000 1,140,520,000 849,305,000 621,855,000 603,347,000 444,806,000 381,553,000 349,258,000 432,096,000 545,438,000 474,754,000 563,579,000 671,654,000 756,627,000 736,431,000 661,390,000 696,629,000 603,159,000 507,541,000 506,137,000 559,450,000 458,645,000 304,477,000 224,606,000 209,487,000 254,043,000 252,065,000 258,053,000 325,483,000 416,388,000 446,067,000 477,517,000 572,017,000 448,545,000 431,214,000 437,678,000 398,688,000 337,040,000 298,349,000 317,617,000                                   
      derivative fair value loss
    -33,429,000            -409,171,750 -457,708,000 -239,922,000 -939,057,000            -61,731,000                    -146,850,000       -60,833,000                -123,767,000                   
      brokered natural gas, ngls and marketing
    57,229,000                                                                                         
      other income
    118,000 284,000 1,881,000 3,183,000                                                                                      
      total revenues and other income
    1,034,170,000 748,528,000 856,275,000 690,554,000 626,639,000 615,033,000 530,043,000 645,369,000 941,357,000 609,724,000 636,977,000 1,186,360,000 1,630,379,000 1,110,545,000 1,225,143,000 180,736,000 1,566,830,000 302,639,000 434,722,000 626,032,000 598,886,000 299,345,000 376,546,000 693,920,000 605,604,000 622,445,000 851,429,000 748,137,000 1,072,637,000 811,225,000 656,184,000 742,599,000 679,032,000 482,232,000 673,111,000 776,655,000 253,522,000 413,207,000 101,797,000 331,413,000 408,674,000 479,252,000 247,510,000 462,632,000 872,214,000 616,615,000 765,524,000 457,342,000 428,086,000 442,038,000 673,356,000 473,478,000 294,893,000 442,440,000 246,893,000 386,246,000 338,205,000 306,629,000 187,576,000 238,718,000 226,961,000                             
      costs and expenses:
                                                                                             
      direct operating
    28,674,000 23,830,000 23,120,000 25,373,000 25,123,000 25,285,000 22,752,000 22,161,000 22,643,000 22,562,000 23,896,000 26,984,000 22,658,000 21,290,000 20,050,000 20,288,000 17,634,000 20,245,000 19,758,000 17,650,000 16,213,000 19,515,000 24,394,000 32,035,000 33,792,000 35,276,000 33,981,000 33,227,000 35,395,000 30,926,000 35,088,000 38,122,000 37,921,000 36,888,000 31,420,000 28,023,000 30,276,000 22,387,000 20,671,000 24,054,000 29,388,000 35,058,000 34,780,000 37,137,000 37,961,000 37,792,000 34,935,000 39,795,000 34,360,000 30,907,000 32,636,000 30,214,000 29,628,000 27,041,000 29,022,000 25,918,000 29,828,000 28,509,000 28,717,000 36,500,000 34,287,000 29,775,000 31,040,000 32,366,000 31,111,000 34,828,000 35,541,000 35,677,000 36,532,000 37,228,000 32,950,000 30,508,000 28,003,000 24,816,000 25,414,000 27,237,000 24,784,000 20,181,000 19,377,000 17,729,000 16,676,000 17,419,000 14,808,000 -33,072,692 12,718,000 10,406,000 9,995,000 -369,000 11,120,000 
      transportation, gathering, processing and compression
    323,329,000 301,110,000 304,714,000 306,109,000 299,401,000 306,154,000 281,495,000 290,875,000 283,061,000 277,207,000 268,190,000 285,483,000 294,228,000 323,019,000 327,907,000 297,787,000 320,785,000 296,510,000 282,844,000 274,330,000 256,742,000 268,108,000 278,875,000 284,765,000 299,511,000 295,912,000 301,219,000 302,655,000 298,716,000 304,562,000 269,910,000 244,628,000 200,300,000 191,645,000 191,590,000 177,648,000 164,338,000 138,764,000                                                    
      taxes other than income
    5,823,000 8,265,000 7,835,000 6,987,000 6,166,000 5,117,000 4,974,000 5,368,000 4,083,000 4,756,000 6,993,000 7,894,000                                                                              
      exploration
    6,030,000 8,105,000 7,928,000 6,391,000 8,332,000 7,334,000 6,651,000 4,526,000 7,508,000 6,970,000 7,448,000 4,604,000 7,069,000 7,498,000 7,506,000 4,699,000 7,108,000 5,881,000 5,028,000 5,538,000 9,464,000 8,086,000 8,027,000 7,077,000 9,350,000 11,013,000 8,109,000 8,211,000 10,600,000 8,299,000 7,499,000 7,719,000 7,893,000 22,767,000 14,498,000 8,504,000 13,684,000 6,943,000 6,785,000 4,913,000 4,260,000 4,235,000 5,025,000 7,886,000 23,638,000 11,443,000 13,621,000 14,846,000 14,065,000 20,496,000 13,068,000 18,022,000 14,752,000 15,517,000 21,516,000 24,982,000 17,606,000 11,592,000 27,187,000 16,743,000 15,236,000 14,473,000 14,635,000 11,090,000 11,102,000 11,368,000 13,339,000 12,486,000 19,149,000 19,462,000 16,593,000 13,677,000 6,233,000 11,725,000 11,710,000 10,885,000 16,512,000 7,125,000 9,518,000 9,868,000 7,174,000 9,124,000 3,271,000 -12,360,781 4,615,000 4,200,000 3,567,000 5,173,000 3,633,000 
      abandonment and impairment of unproved properties
    3,897,000 4,899,000 6,781,000 4,574,000 -201,000 4,723,000 1,524,000 2,371,000 2,051,000 11,012,000 25,786,000 7,510,000 16,289,000 3,186,000 7,137,000 1,996,000  2,000,000 2,177,000 3,029,000 2,730,000 5,667,000 5,524,000 5,413,000 1,193,711,000 16,202,000 12,770,000 12,659,000 441,750,000 6,549,000 54,922,000 11,773,000 217,544,000 42,568,000 5,193,000 4,420,000 6,307,000 6,082,000 7,059,000 10,628,000 11,432,000 12,366,000 12,330,000 11,491,000 14,308,000 13,444,000 9,332,000 9,995,000 5,852,000 11,692,000 19,156,000 21,230,000 40,118,000 43,641,000 20,289,000 27,639,000 16,627,000 18,900,000 16,537,000 23,533,000 20,534,000 13,497,000 12,407,000 28,959,000 24,053,000 40,954,000 19,572,000                       
      general and administrative
    45,351,000 44,712,000 42,146,000 41,691,000 46,531,000 41,526,000 40,141,000 43,941,000 43,975,000 38,093,000 39,526,000 43,146,000 40,369,000 41,197,000 43,493,000 43,026,000 42,459,000 49,061,000 40,242,000 38,004,000 40,720,000 38,153,000 38,288,000 42,254,000 42,793,000 41,047,000 50,631,000 46,638,000 50,090,000 43,722,000 47,583,000 68,417,000 80,553,000 53,035,000 52,322,000 47,496,000 57,027,000 41,024,000 46,064,000 40,657,000 43,544,000 46,178,000 55,964,000 48,329,000 52,363,000 54,963,000 56,888,000 49,212,000 60,207,000 44,919,000 101,987,000 46,582,000 44,497,000 44,005,000 38,729,000 42,205,000 35,907,000 39,120,000 33,959,000 40,042,000 36,523,000 35,836,000 28,170,000 32,168,000 30,568,000 29,103,000 24,910,000 26,308,000 24,650,000 23,938,000 17,412,000 17,854,000 18,058,000 17,838,000 14,678,000 13,872,000 12,170,000 9,306,000 9,399,000 9,405,000 7,183,000 11,517,000 10,670,000 -28,266,190 10,130,000 9,355,000 8,821,000 8,725,000 5,493,000 
      exit costs
    6,950,000 8,085,000 8,502,000 8,897,000 9,156,000 7,649,000 10,094,000 10,315,000 28,279,000 10,684,000 48,654,000 12,323,000                                                                              
      deferred compensation plan
    2,543,000 -765,000 -88,000 2,879,000 3,878,000 -1,930,000 1,240,000 6,405,000 -2,953,000 8,997,000 11,153,000 9,396,000 1,963,000 5,795,000 -19,221,000 73,343,000 -21,200,000 34,278,000 35,462,000 19,811,000 2,254,000 6,237,000 12,587,000 -8,537,000 960,000 -8,871,000 -11,142,000 3,581,000 -18,072,000 223,000 6,615,000 -7,397,000 -14,077,000 -9,203,000 -14,466,000 -13,169,000 -11,013,000 -11,636,000 25,746,000 16,056,000 -21,016,000 -43,705,000 -7,282,000 -5,624,000 -36,836,000 -46,198,000 10,519,000 -2,035,000 22,039,000 -2,225,000 -6,878,000 -14,352,000 20,052,000 9,333,000 -7,830,000 9,640,000 8,717,000 -5,778,000 30,630,000 14,978,000 -5,347,000 -14,135,000 -5,712,000 1,438,000 16,445,000 756,000 12,434,000 -15,324,000 -37,515,000 7,539,000 20,611,000 -10,000 7,761,000 9,334,000 11,247,000               
      interest
    19,419,000 24,268,000 26,796,000 29,161,000 29,268,000 29,301,000 29,713,000 30,476,000 30,086,000 30,599,000 31,117,000 32,202,000 37,233,000 38,736,000 42,001,000 47,175,000 56,362,000 56,809,000 57,287,000 56,878,000 48,526,000 47,999,000 48,624,000 47,518,000 44,024,000 46,997,000 51,727,000 51,537,000 49,161,000 54,801,000 53,862,000 52,385,000 51,473,000 49,179,000 47,926,000 47,101,000 46,749,000 45,967,000 37,758,000 37,739,000 40,849,000 42,904,000 43,479,000 39,207,000                                              
      loss on early extinguishment of debt
    12,344,000        1,000  -439,000  261,000  22,000 69,210,000   63,000                       22,495,000     24,596,000    12,280,000      -4,000 18,580,000   5,351,000                             
      depletion, depreciation and amortization
    88,526,000 93,793,000 91,514,000 90,559,000 92,484,000 91,137,000 87,598,000 87,137,000 90,968,000 87,619,000 85,016,000 86,562,000 90,847,000 90,471,000 86,498,000 85,604,000 92,427,000 93,116,000 90,629,000 88,383,000 90,551,000 96,167,000 104,626,000 102,986,000 130,869,000 137,751,000 141,505,000 138,718,000 147,909,000 164,266,000 161,026,000 162,266,000 162,918,000 159,749,000 152,504,000 149,821,000 149,662,000 131,489,000 122,390,000 120,561,000 127,977,000 153,993,000 151,895,000 147,290,000 146,539,000 142,450,000 133,361,000 128,682,000 126,958,000 130,343,000 120,736,000 113,216,000 123,059,000 108,802,000 100,151,000 97,092,000 93,619,000 78,294,000 72,216,000 92,116,000 91,768,000 90,997,000 88,626,000 104,191,000 97,208,000 88,713,000 84,320,000 69,625,000 81,173,000 77,463,000 71,570,000 71,530,000 57,001,000 51,465,000 47,332,000 52,018,000 46,243,000 36,833,000 34,567,000 34,416,000 32,900,000 30,436,000 29,762,000 -70,898,592 26,306,000 22,444,000 22,248,000 22,437,000 21,869,000 
      total costs and expenses
    601,009,000 565,184,000 554,233,000 580,819,000 562,615,000 548,804,000 520,033,000 535,027,000 554,411,000 544,596,000 592,034,000 583,034,000 632,556,000 677,835,000 668,957,000 753,625,000 656,951,000 682,589,000 592,456,000 596,192,000 556,260,000 1,084,644,000 566,395,000 498,727,000 2,909,783,000 697,245,000 696,145,000 741,030,000 2,905,843,000 738,549,000 764,538,000 650,685,000 806,927,000 681,924,000 545,910,000 494,149,000 509,812,000 468,883,000 456,221,000 467,161,000 894,788,000 914,981,000 428,079,000 412,582,000 422,112,000 376,675,000 476,159,000 405,864,000 428,238,000 410,994,000 431,879,000 390,552,000 377,803,000 347,757,000 316,536,000 388,860,000 282,479,000 228,150,000 240,904,000 732,609,000 241,031,000 209,312,000 221,966,000 249,510,000 248,720,000 242,841,000 225,002,000 214,131,000 164,572,000 205,528,000 196,122,000 164,425,000 148,307,000 143,981,000 139,641,000 137,893,000 123,952,000 96,230,000 100,458,000           
      income before income taxes
    433,161,000 183,344,000 302,042,000 109,735,000 64,024,000 66,229,000 10,010,000 110,342,000 386,946,000 65,128,000 44,943,000 603,326,000 997,823,000 432,710,000 556,186,000 -572,889,000 909,879,000 -379,950,000 -157,734,000 29,840,000 42,626,000 -785,299,000 -189,849,000 195,193,000 -2,304,179,000 -74,800,000 155,284,000 7,107,000 -1,833,206,000 72,676,000 -108,354,000 91,914,000 -127,895,000 -199,692,000 127,201,000 282,506,000 -256,290,000 -55,676,000 -354,424,000 -135,748,000 -486,114,000 -435,729,000 -180,569,000 50,050,000                                    27,286,000 39,427,000 34,607,000 35,110,000       
      income tax expense:
                                                                                             
      current
    5,801,000 -1,022,000 4,645,000 2,000,000 2,902,000 1,282,000 2,399,000 1,582,000 -1,453,000 601,000 -300,000 2,699,000 -6,044,000 6,981,000 9,000,000 4,751,000 763,000 4,484,000 2,569,000 168,000 -157,000  -3,000 -363,000 2,068,000 4,079,000                   -4,000  -1,000 6,000   -25,000     636,000 -7,000 8,000  -826,000 -10,000   -560,000 -695,000 619,000  59,000 2,374,000 949,000 886,000 -96,000 133,000 -101,000 384,000 97,000 615,000 622,000 578,000 740,000 331,000   87,755 -132,000 44,000    
      deferred
    85,730,000 40,059,000 59,819,000 10,683,000 -33,720,000 14,291,000 -21,093,000 16,622,000 78,365,000 15,097,000 15,012,000 119,180,000 189,631,000 52,642,000 94,331,000 -120,832,000 17,750,000 -34,167,000 -3,831,000 2,521,000 72,918,000 -105,251,000 -43,277,000 50,581,000 -500,927,000 -51,298,000 40,099,000 5,688,000 -68,784,000 24,137,000 -28,518,000 42,676,000 -349,097,000 -71,992,000 57,651,000 112,395,000 -93,617,000 -13,705,000 -129,488,000 -44,038,000 -164,316,000 -134,781,000 -61,975,000 22,366,000 166,052,000 93,522,000 117,977,000 18,951,000 -28,180,000 11,866,000 97,519,000 31,742,000 -29,074,000 39,007,000 -27,843,000 -425,000 22,547,000 32,695,000 -19,897,000 -175,346,000 -5,892,000 6,453,000 48,934,000 14,658,000 -14,566,000 -23,145,000 18,827,000 36,996,000 170,400,000 -21,818,000 6,590,000 24,743,000 34,802,000 34,449,000 4,447,000 20,317,000 38,899,000 30,116,000 32,482,000 24,813,000 14,431,000 12,946,000 13,107,000 -16,151,210 7,454,000 4,835,000 3,887,000   
      income tax expense: - sum
    91,531,000 39,037,000 64,464,000 12,683,000 -30,818,000 15,573,000 -18,694,000 18,204,000 76,912,000 15,698,000 14,712,000 121,879,000 183,587,000 59,623,000 103,331,000 -116,081,000   -1,262,000    -43,280,000                                                                   
      net income
    341,630,000 144,307,000 237,578,000 97,052,000 94,842,000 50,656,000 28,704,000 92,138,000 310,034,000 49,430,000 30,231,000 481,447,000 814,236,000 373,087,000 452,855,000 -456,808,000 891,366,000 -350,267,000 -156,472,000 27,151,000 -30,135,000 -680,048,000 -146,569,000 144,975,000 -1,805,320,000 -27,581,000 115,185,000 1,419,000 -1,764,422,000 48,539,000 -79,836,000 49,238,000 221,185,000 -127,700,000 69,550,000 170,111,000 -162,771,000 -41,971,000 -224,936,000 -91,710,000 -321,827,000 -300,948,000 -118,594,000 27,684,000 284,054,000 146,418,000 171,389,000 32,521,000 28,171,000 19,178,000 143,983,000 52,962,000 -53,836,000 55,676,000 -41,800,000 -2,989,000 34,755,000 51,293,000 -25,033,000 -317,719,000 -8,168,000 9,052,000 77,579,000 -16,777,000 -29,818,000 -39,883,000 32,608,000 93,676,000 285,324,000 -34,582,000 1,740,000 34,311,000 58,915,000 64,206,000 73,137,000 427,000 51,330,000 51,270,000 55,396,000 42,682,000 24,665,000 21,661,000 22,003,000 -27,645,769 12,879,000 8,189,000 6,620,000 4,633,000 16,737,000 
      yoy
    260.21% 184.88% 727.68% 5.33% -69.41% 2.48% -5.05% -80.86% -61.92% -86.75% -93.32% -205.39% -8.65% -206.52% -389.42% -1782.47% -3057.91% -48.49% 6.76% -81.27% -98.33% 2365.64% -227.25% 10116.70% 2.32% -156.82% -244.28% -97.12% -897.71% -138.01% -214.79% -71.06% -235.89% 204.26% -130.92% -285.49% -49.42% -86.05% 89.67% -431.27% -213.30% -305.54% -169.20% -14.87% 908.32% 663.47% 19.03% -38.60% -152.33% -65.55% -444.46% -1871.90% -254.90% 8.55% 66.98% -99.06% -525.50% 466.65% -132.27% 1793.78% -72.61% -122.70% 137.91% -117.91% -110.45% 15.33% 1774.02% 173.02% 384.30% -153.86% -97.62% 7935.36% 14.78% 25.23% 32.03% -99.00% 108.11% 136.69% 151.77% -254.39% 91.51% 164.51% 232.37% -696.71% -23.05%     
      qoq
    136.74% -39.26% 144.79% 2.33% 87.23% 76.48% -68.85% -70.28% 527.22% 63.51% -93.72% -40.87% 118.24% -17.61% -199.13% -151.25% -354.48% 123.85% -676.30% -190.10% -95.57% 363.98% -201.10% -108.03% 6445.52% -123.94% 8017.34% -100.08% -3735.06% -160.80% -262.14% -77.74% -273.21% -283.61% -59.11% -204.51% 287.82% -81.34% 145.27% -71.50% 6.94% 153.76% -528.38% -90.25% 94.00% -14.57% 427.01% 15.44% 46.89% -86.68% 171.86% -198.38% -196.70% -233.20% 1298.46% -108.60% -32.24% -304.90% -92.12% 3789.80% -190.23% -88.33% -562.41% -43.74% -25.24% -222.31% -65.19% -67.17% -925.07% -2087.47% -94.93% -41.76% -8.24% -12.21% 17028.10% -99.17% 0.12% -7.45% 29.79% 73.05% 13.87% -1.55% -179.59% -314.66% 57.27% 23.70% 42.89% -72.32%  
      net income margin %
    Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% -Infinity% Infinity% -Infinity% -Infinity% Infinity% -Infinity% -Infinity% -Infinity% Infinity% -Infinity% -Infinity% Infinity% Infinity% -Infinity% Infinity% -Infinity% Infinity% Infinity% -Infinity% Infinity% Infinity% -Infinity% -Infinity% -Infinity% -Infinity% -Infinity% -Infinity% -Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% -Infinity% Infinity% -Infinity% -Infinity% Infinity% Infinity% -Infinity% -Infinity% -Infinity% 4.03% 22.26% -10.16% -14.64% -22.10% Infinity% 38.31% 45.82% -23.04% Infinity% 21.49% 24.31% 26.37% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% -Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% 
      net income per common share:
                                                                                             
      basic
    1,450 610 990 400 390 210 120 380 1,310 200 120 1,980 3,310 1,520 1,810 -1,860 3,630 -1,440  110 -130 -2,830 -610 580 -7,270 -110 460 10 -7,170 190 -320 200 890 -520 280 690 -660 -230 -1,350 -550 -1,930 -1,810 -710 160 1,700 870 1,040 200 135 120 880                                       
      diluted
    1,440 600 990 400 390 210 120 380 1,300 200 120 1,950 3,240 1,490 1,770 -1,860 3,590 -1,440  110 -130 -2,830 -610 580 -7,270 -110 460 10 -7,170 190 -320 200 890 -520 280 690 -660 -230 -1,350 -550 -1,930 -1,810 -710 160 1,690 860 1,040 200 132.5 120 880                                       
      dividends declared per share
    0.1 0.09 0.09 0.09 0.06 0.08 0.08 0.08 0.06 0.08 0.08 0.08 0.02 0.08                                                                            
      weighted-average common shares outstanding:
                                                                                             
      basic
    235,050 237,378 238,187 240,035 240,689,000 240,865 241,125 240,505 236,986,000 241,338 238,970 238,019 240,858,000 239,768 243,492,000 245,350,000 242,862,000 243,311,000 242,592,000 242,159,000 241,373,000 239,895,000 239,472,000 246,218,000 247,970,000 248,082,000 247,770,000 247,776,000 246,171,000 246,451,000 245,880,000 245,709,000 245,091,000 245,244,000 245,177,000 244,652,000 189,868,000 180,683,000 167,126,000 166,803,000 166,389,000 166,517,000 166,421,000 166,039,000 163,625,000 165,841,000 161,909,000 160,794,000 160,438,000 160,500,000 160,565,000 159,431,000 159,563,000 159,412,000 158,913,000 158,030,000 158,154,000 157,997,000 157,545,000 156,874,000 157,109,000 156,820,000 156,393,000  154,653,000 154,389,000 153,719,000      147,182,000                 
      diluted
    236,396 239,026 239,717 241,755 242,745,000 242,623 242,983 242,406 239,837,000 243,937 241,105 240,882 246,379,000 245,023 248,650,000 245,350,000 249,314,000 243,311,000 242,592,000 247,527,000 241,373,000 239,895,000 239,472,000 247,684,000 247,970,000 248,082,000 248,436,000 249,154,000 246,171,000 247,166,000 245,880,000 246,594,000 245,458,000 245,244,000 245,335,000 244,803,000 189,868,000 180,683,000 167,126,000 166,803,000 166,389,000 166,517,000 166,421,000 166,066,000 164,403,000 166,460,000 162,813,000 161,825,000 161,407,000 161,374,000 161,414,000 160,307,000 159,563,000 160,030,000 158,913,000 159,441,000 159,322,000 158,833,000 157,545,000 156,874,000 157,109,000 158,472,000 160,292,000  154,653,000 154,389,000 157,231,000      152,391,000                 
      derivative fair value income
     92,946,000 154,747,000 -158,957,000 -53,804,000 47,124,000 16,808,000 46,598,000 291,059,000 38,394,000 123,734,000 367,967,000     309,566,000 -652,220,000 -249,683,000 -57,879,000 85,529,000 -124,690,000 -6,303,000 233,175,000 18,491,000 74,676,000 195,245,000  100,698,000 -34,591,000 -103,290,000 -14,009,000 25,024,000 -88,426,000 111,195,000 165,557,000 -250,057,000 64,556,000 -162,798,000 86,908,000 126,312,000 202,004,000 -34,791,000 122,839,000 412,422,000 142,057,000 -24,109,000  -59,355,000 -40,355,000 137,760,000 -5,571,000 -40,728,000 148,569,000  -37,880,000 65,762,000 53,039,000 -40,834,000 -7,226,000 9,981,000 6,546,000 42,333,000 1,237,000 -482,000 -9,856,000 75,547,000 119,443,000 272,869,000 -198,410,000  -18,385,000 25,002,000                 
      brokered natural gas and marketing
     43,807,000 33,009,000 54,408,000 34,761,000 32,588,000 34,096,000 31,603,000 44,810,000 46,206,000 44,800,000 67,068,000 96,531,000 127,285,000 110,109,000 93,123,000 120,111,000 105,838,000 69,004,000 72,335,000 69,564,000 47,967,000 38,161,000 32,624,000 46,532,000 79,938,000 101,117,000 132,305,000 221,626,000 116,080,000 102,747,000 55,594,000 51,131,000 59,773,000 55,857,000 53,550,000 46,471,000 44,622,000 40,925,000 36,558,000 34,942,000 32,331,000 27,031,000 21,562,000 32,370,000 28,706,000 34,775,000 34,129,000 41,692,000 51,117,000 16,662,000                                       
      gain on early extinguishment of debt
       -3,000 -63,500 -11,000 -179,000 -64,000            35,000 25,000 7,821,000 -8,991,000 -12,923,000 -2,430,000 -2,985,000                                                                
      brokered natural gas, marketing and other
        25,296,750 34,632,000 34,785,000 31,770,000 47,019,000 44,612,000 44,861,000 82,111,000 95,501,000 133,101,000 108,173,000 87,442,000 116,744,000 105,554,000 62,550,000 80,564,000 68,551,000 42,482,000 33,591,000 28,649,000 41,675,000 73,015,000 92,605,000 138,214,000 215,312,000 109,385,000 98,084,000 59,979,000 50,849,000 63,117,000 55,779,000 51,648,000 44,934,000 44,174,000 39,989,000 35,018,000 30,372,000 25,864,000 21,339,000 14,485,000 39,644,000 28,324,000 30,052,000 32,528,000 35,734,000 45,171,000 14,631,000                                       
      gain on the sale of assets
        -55,500 -69,000 -66,000 -87,000 -101,000 -109,000 -106,000 -138,000 139,000 -135,000 -82,000     1,860,000 -28,110,750 9,230,000   -407,000 36,341,000 -5,867,000 189,000 10,815,000 30,000 -156,000 -23,000     -470,000 2,597,000 3,304,000  404,803,000 -681,000 2,909,000  3,760,000 167,000 282,064,000  3,162,000 6,008,000 83,287,000 61,836,000 949,000  -10,426,000 3,540,000 203,000 -1,621,000 139,000 -1,514,000 67,000 10,176,000 68,868,000                           
      production and ad valorem taxes
                5,621,500 8,428,000 7,468,000 6,590,000 9,138,000 7,140,000 8,414,000 4,625,000 3,935,000 6,106,000 5,557,000 9,019,000 8,963,000 7,805,000 9,889,000 11,310,000 16,656,000 9,427,000 10,140,000 9,926,000 11,757,000 11,993,000 9,969,000 9,163,000 6,790,000 6,717,000 6,049,000 5,887,000 7,354,000 7,336,000 9,242,000 9,928,000 11,923,000 10,110,000 10,844,000 11,678,000 11,290,000 11,454,000 11,113,000 9,881,000 8,819,000 11,786,000 36,634,000 5,920,000 7,317,000 7,550,000 6,879,000 8,619,000 8,873,000 8,090,000 8,070,000 8,748,000 7,600,000 7,564,000 8,257,000 10,066,000 15,210,000 16,056,000 13,840,000 9,485,000 11,316,000 11,230,000 10,412,000 8,534,000 9,985,000 8,669,000 9,727,000 10,270,000 8,457,000 7,034,000 5,755,000 -14,361,496 5,331,000 4,801,000 4,250,000   
      exit and termination costs
                14,562,250 11,065,000 36,069,000 11,115,000 12,104,000 11,789,000 -15,946,000 13,714,000 13,884,000 521,633,000 10,297,000                                                                   
      loss on the sale of assets
                   -331,000   -2,506,000    426,000                 1,643,000    -175,000    -353,000      -3,227,000                                    
      impairment of proved properties and other assets
                         1,955,000           15,919,750 63,679,000      43,040,000 87,941,000 502,233,000   3,033,000  24,991,000   7,012,000  34,273,000 1,281,000                                     
      (gain) loss on the sale of assets
                    23,000 -78,000      -122,099,000         -207,000 -102,000 -807,000 -22,600,000                                                      
      income tax benefit:
                                                                                             
      impairment of proved properties
                           77,000,000       15,302,000 7,312,000                         38,681,000   463,244,000   6,505,000                           
      net loss per common share:
                                                                                             
      basic
                      -650                                                                       
      diluted
                      -650                                                                       
      income tax (benefit) expense:
                                                                                             
      dividends paid per common share
                            15 20 20 20 15 20 20 20 15 20 20 20 15 20 20 20 30 40 40 40 30 40 40 40 30 40                                        
      termination costs
                           1,595,000 6,481,000 819,000 2,206,000   -336,000  -37,000 -279,000 -47,000 -96,000 4,192,000 -822,000 136,000 5,000 162,000 8,780,000 -77,000 417,000 5,950,000                514,000   7,938,000                           
      mrd merger expenses
                                                                                             
      memorial merger expenses
                                        9,103,000 33,791,000 2,621,000                                                   
      transportation, gathering and compression
                                          136,844,000 125,263,000 112,481,000 99,634,000 95,198,000 89,426,000 89,542,000 84,777,000 76,809,000 74,161,000 66,820,000 60,958,000 66,048,000 55,281,000 51,600,000 44,744,000 40,820,000                                   
      interest expense
                                                38,900,000 39,188,000 45,488,000 45,401,000 44,955,000 44,321,000 45,071,000 44,708,000 43,997,000 42,888,000 37,205,000 34,709,000 34,181,000 31,383,000 24,779,000 36,320,000 33,806,000 30,779,000 30,287,000 30,550,000 30,633,000 29,555,000 26,629,000 18,090,250 25,373,000 23,842,000 23,146,000 14,089,000 19,935,000 17,573,000 18,848,000 18,127,000 16,896,000 12,003,000 10,551,000 7,010,250 9,910,000 9,547,000 8,584,000       
      income from operations before income taxes
                                                145,195,750 239,940,000 289,365,000 51,478,000 37,432,750 31,044,000 241,477,000                                       
      income tax expense
                                                                                             
      income tax benefit
                                                                                             
      income tax expense - sum
                                                   18,957,000 -28,323,000 11,866,000 97,494,000 29,964,000 -29,074,000                                     
      dividends per common share
                                                      40 30 40 40 40 30 40 40 40 30 40 40 40 30 40 40 40 30 40 40 40 22.5 30 30 30 15 20 20 20 15 20 20 20       
      other
                                                       -771,000 -2,368,000 -1,251,000 535,000 2,775,000 -375,000 -435,000 1,077,000 1,020,000 -1,013,000 637,000 -1,575,000 7,112,000 -443,000 -4,387,000 -1,794,000 898,000 544,000 -359,000 20,592,000 -220,000 2,419,000 1,090,000 1,742,000 3,549,000 249,000 1,572,000 1,432,000 -1,942,000 -968,000 330,000 17,000 1,122,841 349,000 833,000 -2,302,000 -990,000 723,000 
      income from continuing operations before income taxes
                                                       82,926,000 -82,910,000 94,683,000 -69,643,000 -2,614,000 55,726,000 78,479,000 -53,328,000         130,731,000 458,098,000 -55,451,000 9,216,000 51,694,750 94,046,000 99,533,000 13,200,000 46,234,000 104,928,000 81,443,000            
      income from continuing operations
                                                       52,962,000 -53,836,000 55,676,000 -41,800,000 -2,825,000 33,186,000 45,776,000 -33,431,000         93,676,000 285,324,000 -34,582,000 1,740,000 34,311,000 59,111,000 65,185,000 8,369,000 25,820,000 65,414,000 50,705,000            
      discontinued operations, net of taxes
                                                           -164,000 1,569,000 5,517,000 8,398,000                64,768,000               
      income per common share:
                                                                                             
      basic-income from continuing operations
                                                       330 -340 340 -260 -20 210 280 -210                               
      -discontinued operations
                                                            10  50                               
      -net income
                                                       330 -340 340 -260 -20 220  -160                               
      diluted-income from continuing operations
                                                       330 -340 340 -260 -20 200 280 -210                               
      loss per common share:
                                                                                             
      revenues and other income
                                                                                             
      natural gas, ngl and oil sales
                                                           188,841,750 271,799,000 256,687,000 226,881,000 246,503,000 219,560,000                             
      transportation and gathering
                                                           22,000 816,000 -1,041,000 313,000 -65,000 -1,634,000 674,000 2,093,000 -3,605,000 2,444,000 2,152,000 -505,000 687,000 1,537,000 1,224,000 1,129,000 1,087,000 508,000 511,000 184,000 498,000 1,034,000 978,000 142,000 661,000 758,000 631,000 528,000 -1,104,798 296,000 344,000 467,000   
      costs and expenses
                                                                                             
      total income tax expense
                                                           8,836,500 22,540,000 32,703,000 -19,897,000 12,371,250 -5,902,000 6,453,000 48,934,000 -4,740,000 -15,261,000  18,827,000                       
      income per common share
                                                                                             
      weighted-average common shares outstanding
                                                                                             
      basic
    235,050 237,378 238,187 240,035 240,689,000 240,865 241,125 240,505 236,986,000 241,338 238,970 238,019 240,858,000 239,768 243,492,000 245,350,000 242,862,000 243,311,000 242,592,000 242,159,000 241,373,000 239,895,000 239,472,000 246,218,000 247,970,000 248,082,000 247,770,000 247,776,000 246,171,000 246,451,000 245,880,000 245,709,000 245,091,000 245,244,000 245,177,000 244,652,000 189,868,000 180,683,000 167,126,000 166,803,000 166,389,000 166,517,000 166,421,000 166,039,000 163,625,000 165,841,000 161,909,000 160,794,000 160,438,000 160,500,000 160,565,000 159,431,000 159,563,000 159,412,000 158,913,000 158,030,000 158,154,000 157,997,000 157,545,000 156,874,000 157,109,000 156,820,000 156,393,000  154,653,000 154,389,000 153,719,000      147,182,000                 
      diluted
    236,396 239,026 239,717 241,755 242,745,000 242,623 242,983 242,406 239,837,000 243,937 241,105 240,882 246,379,000 245,023 248,650,000 245,350,000 249,314,000 243,311,000 242,592,000 247,527,000 241,373,000 239,895,000 239,472,000 247,684,000 247,970,000 248,082,000 248,436,000 249,154,000 246,171,000 247,166,000 245,880,000 246,594,000 245,458,000 245,244,000 245,335,000 244,803,000 189,868,000 180,683,000 167,126,000 166,803,000 166,389,000 166,517,000 166,421,000 166,066,000 164,403,000 166,460,000 162,813,000 161,825,000 161,407,000 161,374,000 161,414,000 160,307,000 159,563,000 160,030,000 158,913,000 159,441,000 159,322,000 158,833,000 157,545,000 156,874,000 157,109,000 158,472,000 160,292,000  154,653,000 154,389,000 157,231,000      152,391,000                 
      — discontinued operations
                                                             40                -10                
      — net income
                                                             320          610 1,870 -230 10   440    390            
      income from operations
                                                               31,987,000 -14,070,000 15,505,000 126,513,000 -14,013,250 -45,079,000 -62,409,000 51,435,000                       
      yoy
                                                               -328.26% -68.79% -124.84% 145.97%                           
      qoq
                                                               -327.34% -190.74% -87.74% -1002.81% -68.91% -27.77% -221.34%                        
      operating margin %
    NaN% NaN% NaN% NaN% NaN% NaN% NaN% NaN% NaN% NaN% NaN% NaN% NaN% NaN% NaN% NaN% NaN% NaN% NaN% NaN% NaN% NaN% NaN% NaN% NaN% NaN% NaN% NaN% NaN% NaN% NaN% NaN% NaN% NaN% NaN% NaN% NaN% NaN% NaN% NaN% NaN% NaN% NaN% NaN% NaN% NaN% NaN% NaN% NaN% NaN% NaN% NaN% NaN% NaN% NaN% NaN% NaN% NaN% NaN% Infinity% -Infinity% 6.90% 36.30% -8.49% -22.14% -34.59% Infinity% 0% 0% 0% NaN% 0% 0% 0% NaN% NaN% NaN% NaN% NaN% NaN% NaN% NaN% NaN% NaN% NaN% NaN% NaN% NaN% NaN% 
      income per common share:
                                                                                             
      basic
                                                               -2,020 -50 60 500 -60 -190                         
      diluted
                                                               -2,020 -50 60 480 -60 -190                         
      revenues
                                                                                             
      oil and gas sales
                                                                 206,784,000 236,760,000 242,087,000 202,122,000 192,523,000 203,189,000 223,834,000 347,720,000 347,622,000 307,384,000 240,901,000 214,424,000 221,591,000 217,026,000 177,323,000 172,647,000 157,620,000 176,338,000 156,881,000 142,055,000 118,723,000 107,415,000 -218,179,297 85,574,000 67,553,000 65,368,000 61,076,000 55,723,000 
      total revenues
                                                                 224,817,000 348,479,000 165,127,500 203,641,000 180,432,000  244,521,250 622,670,000 150,077,000  159,677,000 242,353,000 243,514,000                
      yoy
                                                                 24.60%  -32.47% -67.30% 20.23%  53.13% 156.93% -38.37%                    
      qoq
                                                                 -35.49% 111.04% -18.91% 12.86%   -60.73% 314.90%   -34.11% -0.48%                 
      total income tax benefit
                                                                     -22,526,000                        
      loss per common share:
                                                                                             
      basic
                                                                     -260                        
      diluted
                                                                     -260                        
      total revenue
                                                                      276,437,000    205,338,000    152,841,000 184,127,000 228,880,000 177,673,000 189,193,000           
      earnings per common share:
                                                                                             
      basic
                                                                      210             207.5 290 270        
      diluted
                                                                      210             200 280 260        
      income tax provision
                                                                                             
      income tax provision - sum
                                                                       37,055,000 172,774,000 -20,869,000 7,476,000 24,647,000 34,935,000 34,348,000 4,831,000               
      earnings per common share:
                                                                                             
      basic — income from continuing operations
                                                                       610 1,870 -230 10 240 400 450  325 480 390            
      diluted — income from continuing operations
                                                                       600 1,810 -230 10 220 390 430  312.5 460 370            
      discontinued operations, net of income taxes
                                                                           15,898,250 -196,000 -979,000  -3,379,750 -14,084,000 565,000            
      - discontinued operations
                                                                           112.5    -25 -110             
      - net income
                                                                           342.5 400   300 370             
      mark-to-market on oil and gas derivatives
                                                                             20,322,000 -66,111,000 2,757,000 54,950,000 17,503,000 11,281,000           
      basic – income from continuing operations
                                                                              60               
      – discontinued operations
                                                                              470               
      – net income
                                                                              530               
      diluted – income from continuing operations
                                                                              60               
      non-cash stock compensation
                                                                               -86,750 -2,638,000 2,113,000 7,319,000 5,789,000 20,118,000         
      income tax
                                                                                             
      income tax - sum
                                                                               25,828,000 39,514,000 30,738,000 33,060,000           
      income before income taxes and accounting change
                                                                                  88,735,000     -43,709,224 20,201,000 13,068,000 10,507,000 7,547,000 25,758,000 
      income before cumulative effect of changes in accounting principle
                                                                                  55,675,000           
      cumulative effect of changes in accounting principle, net of taxes
                                                                                  -279,000           
      net income available to common stockholders
                                                                                  430 42,682,000 24,665,000 21,661,000 22,003,000       
      cumulative effect of changes in accounting principle
                                                                                             
      net income per common share
                                                                                  430         70 310 
      earnings per common share – assuming dilution
                                                                                  410         60 290 
      net income per common share – assuming dilution
                                                                                  410         60 290 
      revenues - sum
                                                                                   92,372,250 141,845,000 119,684,000 107,960,000 -218,122,293 86,214,000 68,696,000 63,533,000 61,349,000 76,156,000 
      expenses
                                                                                             
      expenses - sum
                                                                                   65,086,250 102,418,000 85,077,000 72,850,000 -174,413,069 66,013,000 55,628,000 53,026,000 53,802,000 50,398,000 
      income taxes
                                                                                             
      income taxes - sum
                                                                                   10,203,750 14,762,000 12,946,000        
      preferred dividends
                                                                                       2,206,837 -737,000 -737,000 -738,000   
      earnings per common share
                                                                                         120 100   
      basic:
                                                                                             
      diluted:
                                                                                             
      gain on retirement of securities
                                                                                       38,961 -5,000   279,000 18,572,000 
      interest expense and dividends on trust preferred
                                                                                       -15,456,881 6,913,000 4,422,000 4,145,000 3,741,000 7,705,000 
      income before cumulative effect of change in accounting principle
                                                                                       -27,645,769 12,879,000 8,189,000 6,620,000 4,633,000 16,737,000 
      cumulative effect of change in accounting principle
                                                                                           1,122,750  
      net income available to common shareholders
                                                                                       6,369,000 12,142,000 7,452,000 5,882,000 3,895,000 16,672,000 
      net income available to common stockholders per share before change in accounting principle
                                                                                       0.105 0.18     
      net income per common share-basic
                                                                                       0.105 0.18 130 110   
      earnings per common share before change in accounting principle
                                                                                       0.1 0.17     
      net income per common share-diluted
                                                                                       0.1 0.17 120    
      loss on retirement of securities
                                                                                         -34,000    
      net income available to common shareholders before change in accounting principle
                                                                                         130 110   
      net income per common share – diluted
                                                                                          100   
      transportation and processing
                                                                                           702,000 841,000 
      ipf income
                                                                                           283,000 297,000 
      ipf
                                                                                           1,201,000 578,000 
      debt conversion expense
                                                                                             
      preferred stock dividends
                                                                                           -16,250 -65,000 
    Balance Sheets:
    Quarterly
    Annual
      Unit: USD2026-03-31 2025-09-30 2025-06-30 2025-03-31 2024-12-31 2024-09-30 2024-06-30 2024-03-31 2023-12-31 2023-09-30 2023-06-30 2023-03-31 2022-12-31 2022-09-30 2022-06-30 2022-03-31 2021-12-31 2021-09-30 2021-06-30 2021-03-31 2020-12-31 2020-09-30 2020-06-30 2020-03-31 2019-12-31 2019-09-30 2019-06-30 2019-03-31 2018-12-31 2018-09-30 2018-06-30 2018-03-31 2017-12-31 2017-09-30 2017-06-30 2017-03-31 2016-12-31 2016-09-30 2016-06-30 2016-03-31 2015-12-31 2015-09-30 2015-06-30 2015-03-31 2014-12-31 2014-09-30 2014-06-30 2014-03-31 2013-12-31 2013-09-30 2013-06-30 2013-03-31 2012-12-31 2012-09-30 2012-06-30 2012-03-31 2011-12-31 2011-09-30 2011-06-30 2011-03-31 2010-12-31 2010-09-30 2010-06-30 2010-03-31 2009-12-31 2009-09-30 2009-06-30 2009-03-31 2008-12-31 2008-09-30 2008-06-30 2008-03-31 2007-12-31 2007-09-30 2007-06-30 2007-03-31 2006-12-31 2006-09-30 2006-06-30 2006-03-31 2005-12-31 2005-09-30 2005-06-30 2005-03-31 2004-12-31 2004-09-30 2004-06-30 2004-03-31 2003-12-31 2003-09-30 
                                                                                                
        assets
                                                                                                
        current assets:
                                                                                                
        cash and cash equivalents
      247,000 175,000 134,000 344,574,000 304,490,000 277,450,000 251,052,000 343,111,000 211,974,000 162,801,000 162,075,000 227,633,000 207,000 157,144,000 356,000 112,931,000 214,422,000 478,000 464,000 449,000 458,000 517,000 568,000 528,000 546,000 354,000 507,000 488,000 545,000 357,000 415,000 527,000 448,000 529,000 520,000 545,000 314,000 542,000 382,000 529,000 471,000 490,000 521,000 519,000 448,000 468,000 292,000 246,000 348,000 255,000 284,000 194,000 252,000 151,000 158,000 122,898,000 92,000 51,884,000 288,839,000 1,681,000 2,848,000    767,000                          
        accounts receivables
      276,510,000 239,225,000 234,174,000 330,949,000 302,212,000 181,143,000 205,756,000 167,215,000 274,669,000 217,335,000 187,762,000 256,030,000 481,050,000 634,333,000 608,575,000 413,026,000 471,775,000 366,695,000 299,590,000 286,491,000 252,642,000 182,698,000 169,151,000 188,162,000 272,900,000 249,190,000 289,295,000 356,716,000 490,723,000 397,536,000 362,490,000 294,448,000 348,833,000 285,166,000 261,129,000 246,392,000 241,718,000 183,883,000 81,418,000 104,894,000 123,842,000 110,792,000 115,006,000 134,261,000 188,941,000 172,429,000 183,749,000 221,304,000 179,667,000 151,407,000 159,981,000 152,670,000 167,495,000 120,120,000 104,952,000 108,884,000 127,180,000 86,172,000 66,772,000 75,530,000 105,983,000 97,601,000 101,299,000 113,467,000 123,622,000 97,172,000 99,065,000 110,372,000 162,201,000 246,682,000 253,512,000 195,013,000 166,484,000 146,618,000 144,973,000 134,132,000 130,349,000 121,362,000 100,520,000 92,508,000 128,532,000 99,953,000 64,862,000        
        derivative assets
      60,064,000 60,395,000 46,285,000 5,984,000 84,479,000 160,321,000 202,819,000 299,987,000 341,330,000 173,406,000 176,247,000 147,529,000 925,000 37,350,000 24,515,000 2,176,000 5,738,000 28,145,000 25,865,000 8,111,000 23,332,000 5,264,000 143,252,000 257,347,000 136,848,000 137,019,000 142,591,000 6,146,000 87,953,000 103,000  12,908,000 58,607,000 30,176,000 80,559,000 30,454,000 13,278,000 158,340,000 43,250,000 261,079,000 281,544,000 289,108,000 237,167,000 358,544,000 363,049,000 44,774,000 5,463,000 80,000 4,421,000                                          
        prepaid assets
      12,696,000 11,131,000 13,095,000 15,117,000 12,722,000 18,815,000 27,968,000 23,355,000 18,159,000                                                                                  
        other current assets
      26,253,000 23,900,000 25,213,000 23,862,000 17,558,000 17,812,000 29,233,000 19,972,000 15,992,000 42,435,000 35,487,000 38,072,000  33,539,000 35,949,000 18,162,000  17,037,000 13,793,000 13,581,000  20,668,000 18,868,000 21,080,000 17,508,000                                                                  
        total current assets
      375,770,000 334,826,000 318,901,000 720,486,000 721,461,000 655,541,000 716,828,000 861,640,000 870,124,000 595,977,000 561,571,000 693,764,000 539,587,000 862,366,000 669,395,000 575,795,000 736,665,000 412,355,000 339,712,000 308,632,000 289,840,000 209,147,000 331,839,000 467,117,000 427,802,000 412,458,000 459,099,000 388,478,000 602,185,000 422,484,000 384,872,000 337,947,000 429,234,000 337,250,000 360,614,000 297,537,000 281,883,000 379,210,000 145,712,000 391,726,000 439,074,000 423,428,000 373,608,000 510,639,000 570,292,000 236,642,000 247,579,000 279,345,000 248,301,000 222,732,000 273,448,000 370,640,000 327,614,000 270,535,000 372,343,000 462,879,000 315,263,000 290,770,000 443,888,000 1,015,936,000 261,714,000 276,963,000 373,412,000 560,946,000 175,280,000 197,176,000 293,252,000 412,563,000 404,311,000 315,356,000 438,111,000 273,033,000 261,814,000 231,060,000 237,090,000 345,249,000 320,337,000 311,586,000 302,845,000 145,281,000 207,977,000 212,684,000 122,596,000        
        natural gas, ngls and oil properties
      6,756,719,000                                                                                          
        other property and equipment
      6,231,000 3,464,000 2,736,000 2,799,000 72,771,000 72,072,000 71,826,000 73,642,000 72,639,000 74,871,000 74,725,000 74,712,000 74,638,000 74,513,000 75,059,000 74,715,000 74,678,000 74,167,000 80,503,000 80,365,000 79,878,000 79,632,000 83,483,000 82,887,000 102,083,000 102,187,000 111,963,000 112,373,000 111,908,000 112,404,000 114,833,000 114,566,000 114,361,000 114,073,000 114,184,000 114,402,000 112,796,000 114,911,000 111,095,000 110,444,000 110,013,000 128,535,000 128,198,000 127,920,000 127,808,000                                              
        operating lease right-of-use assets
      158,585,000 154,842,000 170,159,000 100,110,000 119,838,000 118,988,000 128,537,000 148,225,000 23,821,000 37,801,000 52,637,000 67,608,000 84,070,000 96,567,000 30,358,000 35,906,000 40,832,000 46,543,000 52,291,000 58,199,000 63,581,000 43,763,000 52,367,000 56,412,000 62,053,000 47,214,000 48,893,000 49,329,000                                                               
        other assets
      74,819,000 75,652,000 73,388,000 82,030,000 79,592,000 78,365,000 75,482,000 81,383,000 88,922,000 95,649,000 77,141,000 84,711,000 68,077,000 73,089,000 74,158,000 86,483,000 86,259,000 78,384,000 78,722,000 79,355,000 75,865,000 69,526,000 67,672,000 64,540,000 75,432,000 72,818,000 71,751,000 74,757,000 68,166,000 76,203,000 78,401,000 77,230,000 76,734,000 74,400,000 75,540,000 77,512,000 72,655,000 71,180,000 76,512,000 73,378,000 72,979,000 115,780,000 127,697,000 121,977,000 121,020,000 112,134,000 114,211,000 118,987,000 121,297,000 120,370,000 124,154,000 139,303,000 115,206,000 128,301,000 120,318,000 119,710,000 104,254,000 101,244,000 104,430,000 100,848,000 84,977,000 87,768,000 76,333,000 80,996,000 79,031,000 81,165,000 75,135,000 64,255,000 66,937,000 73,323,000 76,804,000 71,492,000 74,956,000 74,338,000 70,574,000 68,722,000 68,832,000 64,954,000 59,417,000 44,370,000 30,582,000    19,223,000      
        total assets
      7,404,908,000 7,197,763,000 7,105,111,000 7,382,724,000 7,347,675,000 7,241,303,000 7,266,223,000 7,371,801,000 7,203,885,000 6,845,935,000 6,790,172,000 6,882,267,000 6,625,562,000 6,919,776,000 6,615,103,000 6,560,285,000 6,660,507,000 6,304,189,000 6,229,433,000 6,174,660,000 6,136,936,000 6,012,898,000 6,452,211,000 6,589,638,000 6,612,403,000 8,854,199,000 9,728,308,000 9,635,064,000 9,708,154,000 11,866,136,000 11,826,077,000 11,730,168,000 11,728,841,000 11,637,739,000 11,621,336,000 11,421,745,000 11,282,245,000 11,327,259,000 6,380,179,000 6,705,150,000 6,900,031,000 8,397,904,000 8,805,931,000 8,844,887,000 8,746,780,000 8,034,450,000 7,800,558,000 7,482,775,000 7,299,086,000 7,030,630,000 6,930,182,000 6,866,531,000 6,728,735,000 6,657,720,000 6,543,894,000 6,277,945,000 5,845,470,000 5,476,478,000 5,309,907,000 5,615,247,000 5,498,586,000 5,837,165,000 5,762,845,000 5,642,101,000 5,395,881,000 5,396,382,000 5,435,999,000 5,715,258,000 5,562,543,000 5,271,194,000 4,879,656,000 4,487,695,000 4,016,508,000 3,848,426,000 3,675,676,000 3,280,884,000 3,187,674,000 3,051,250,000 2,871,786,000 2,034,953,000 2,018,985,000 1,970,424,000 1,802,678,000        
        liabilities
                                                                                                
        current liabilities:
                                                                                                
        accounts payable
      231,883,000 139,619,000 124,322,000 139,604,000 133,132,000 96,894,000 123,968,000 150,500,000 110,134,000 132,230,000 139,352,000 179,468,000 206,738,000 220,818,000 229,120,000 234,253,000 178,413,000 151,919,000 144,454,000 160,323,000 132,421,000 84,554,000 97,494,000 163,277,000 155,341,000 163,327,000 193,190,000 215,073,000 227,344,000 225,874,000 248,226,000 314,819,000 343,871,000 317,112,000 286,619,000 299,839,000 229,190,000 124,348,000 92,081,000 133,853,000 117,346,000 147,870,000 206,748,000 278,248,000 396,942,000 266,702,000 291,107,000 273,756,000 258,431,000 251,635,000 303,618,000 363,273,000 234,651,000 318,492,000 266,412,000 300,284,000 311,369,000 299,097,000 246,549,000 245,446,000 312,475,000 232,332,000 254,405,000 214,854,000 214,548,000 135,881,000 131,436,000 197,457,000 250,640,000 301,992,000 273,083,000 234,008,000 212,514,000 182,483,000 189,548,000 122,028,000 172,081,000 150,996,000 143,346,000 97,829,000 119,907,000 101,317,000 68,224,000  78,723,000 49,205,000 38,924,000 29,056,000 32,105,000 30,465,000 
        asset retirement obligations
      1,173,000 1,189,000 1,189,000 1,189,000 1,189,000 2,395,000 2,395,000 2,395,000 2,395,000 4,570,000 4,570,000 4,570,000 4,570,000 5,310,000 5,310,000 5,310,000 5,310,000 6,689,000 6,689,000 6,689,000 6,689,000 2,103,000 2,393,000 2,393,000 2,393,000 5,485,000 5,485,000 5,485,000 5,485,000 6,327,000 6,327,000 6,327,000 6,327,000 7,271,000 7,271,000 7,271,000 7,271,000 15,071,000 15,071,000 15,071,000 15,071,000 17,689,000 17,689,000 17,689,000 15,067,000 5,037,000 5,037,000 5,037,000 5,037,000 2,366,000 2,366,000 2,366,000 2,470,000 5,005,000 5,005,000 5,005,000 5,005,000 4,020,000 4,020,000 4,020,000 4,020,000 2,446,000 2,446,000 2,446,000 2,446,000 2,118,000 2,064,000 2,313,000 2,055,000 1,827,000 1,609,000 1,667,000 1,903,000  79,052,000 73,710,000 4,216,000 3,796,000 3,875,000 66,558,000 3,166,000          
        accrued liabilities
      293,430,000 293,513,000 274,450,000 268,699,000 289,148,000 273,317,000 263,093,000 250,430,000 302,163,000 302,348,000 301,762,000 341,525,000 442,922,000 563,004,000 475,727,000 381,110,000 420,898,000 448,950,000 358,640,000 311,469,000 348,333,000 310,376,000 312,866,000 290,703,000 356,392,000 351,981,000 371,795,000 399,822,000 475,848,000 386,671,000 341,428,000 282,809,000 317,531,000 277,355,000 256,227,000 231,568,000 265,843,000 294,253,000 179,812,000 160,165,000 188,028,000 172,702,000 162,724,000 170,034,000 187,973,000 171,345,000 158,518,000 164,585,000 161,520,000 159,697,000 133,064,000 175,338,000 139,379,000 133,369,000 144,765,000 125,447,000 109,109,000 59,348,000 53,077,000 44,629,000 69,678,000 66,011,000 60,274,000 56,018,000 58,585,000 59,328,000 54,234,000 39,462,000 47,309,000 49,546,000 53,285,000 39,569,000 42,964,000 40,785,000 37,047,000 29,874,000 38,500,000 38,627,000 51,338,000 19,294,000 28,372,000 27,227,000 23,678,000 18,376,000 23,292,000 26,091,000 23,847,000 12,114,000 10,768,000 12,059,000 
        deferred compensation liabilities
      6,426,000 5,895,000 5,798,000 21,794,000 21,649,000 24,136,000 25,040,000 34,544,000 44,149,000 85,592,000 79,443,000 100,104,000 89,334,000 85,750,000 83,755,000 197,494,000 137,102,000 112,235,000 121,010,000 107,001,000 81,481,000 69,927,000 58,676,000 46,411,000 64,070,000 58,329,000 62,431,000 75,179,000 67,542,000 86,794,000 87,087,000 101,334,000 101,102,000 91,014,000 96,854,000 110,455,000 119,231,000 119,645,000 127,090,000 115,152,000 104,792,000 117,137,000 156,460,000 173,134,000 178,599,000                                              
        accrued interest
      6,718,000 13,682,000 32,100,000 24,681,000 36,920,000 27,023,000 36,553,000 27,187,000 37,261,000 28,714,000 38,645,000 29,892,000 39,138,000 31,231,000 48,120,000 34,317,000 75,940,000 43,514,000 76,909,000 45,125,000 54,742,000 31,680,000 52,860,000 33,752,000 39,299,000 35,116,000 41,864,000 37,051,000 41,990,000 37,739,000 42,700,000 36,488,000 43,511,000 37,095,000 41,975,000 36,689,000 35,340,000 21,185,000 32,000,000 28,953,000 30,139,000 31,756,000 45,650,000 22,994,000 39,695,000 23,328,000 41,243,000 32,303,000 44,375,000 31,914,000 44,016,000 38,678,000 36,248,000 47,284,000 38,865,000 34,948,000 29,201,000 33,805,000 29,013,000 39,496,000 32,189,000 39,863,000 23,763,000 37,263,000 24,037,000 37,002,000 23,134,000 28,258,000 20,516,000 28,270,000 20,045,000 21,115,000 17,595,000 11,791,000 13,317,000 11,754,000 12,938,000 11,417,000 11,727,000 4,086,000 10,214,000 3,729,000 9,918,000 3,817,000 7,320,000    3,932,000 1,962,000 
        derivative liabilities
      10,148,000 2,464,000 1,201,000 70,845,000 9,634,000 6,649,000 5,704,000 10,744,000 222,000   16,019,000 151,417,000 652,585,000 647,153,000 845,312,000 162,767,000 685,285,000 249,277,000 38,319,000 26,707,000 53,408,000 5,306,000  13,119,000 1,521,000 1,297,000 13,369,000 4,144,000 97,256,000 101,328,000 38,403,000 44,233,000 32,533,000 4,900,000 55,713,000 165,009,000 7,277,000 20,649,000 192,000 1,136,000 293,000 125,000 1,142,000   62,965,000 72,854,000 26,198,000                                          
        operating lease liabilities
      59,402,000 60,384,000 63,417,000 67,468,000 87,138,000 91,363,000 81,009,000 81,044,000 16,064,000 17,605,000 18,135,000 18,953,000 20,903,000 37,458,000 22,443,000 23,913,000 24,861,000 27,839,000 32,770,000 38,026,000 43,155,000 32,238,000 35,104,000 36,768,000 41,068,000 40,350,000 39,897,000 41,759,000                                                               
        divestiture contract obligation
      69,477,000 78,360,000 80,657,000 83,246,000 86,991,000 84,744,000 83,042,000 81,432,000 86,762,000 90,059,000 88,263,000 85,322,000 86,546,000 88,570,000 90,909,000 87,499,000 91,120,000 92,061,000 89,950,000 88,132,000 92,593,000 102,665,000                                                                     
        total current liabilities
      678,657,000 595,106,000 583,134,000 1,283,960,000 1,274,070,000 1,223,904,000 1,240,871,000 638,276,000 583,086,000 643,513,000 652,035,000 756,900,000 1,020,665,000 2,089,667,000 2,027,982,000 2,337,284,000 1,152,465,000 1,646,327,000 925,919,000 695,434,000 706,841,000 630,120,000 530,253,000 490,125,000 566,544,000 557,430,000 613,631,000 670,800,000 754,811,000 753,867,000 740,009,000 678,846,000 755,473,000 671,366,000 596,992,000 631,080,000 702,653,000 462,134,000 339,613,000 338,234,000 351,720,000 465,812,000 506,752,000 611,305,000 755,264,000 466,412,000 558,870,000 548,535,000 495,561,000 453,583,000 504,376,000 607,663,000 455,143,000 545,744,000 540,500,000 554,535,000 511,932,000 406,927,000 352,040,000 350,472,000 430,562,000 378,647,000 351,621,000 337,906,000 314,104,000 246,364,000 237,266,000 313,970,000 353,514,000 422,488,000 872,376,000 502,056,000 305,433,000 243,967,000 250,315,000 184,944,000 232,356,000 216,008,000 278,111,000 208,384,000 321,760,000 398,602,000 200,357,000        
        bank debt, net of unamortized debt issuance costs
      323,294,000                                                                                          
        senior notes, net of unamortized debt issuance costs
      495,960,000                                                                                          
        deferred tax liabilities
      787,329,000 650,428,000 611,873,000 552,057,000 541,378,000 571,095,000 556,808,000 577,906,000 561,288,000 482,869,000 467,768,000 452,753,000 333,571,000 143,814,000 91,155,000 32,243,000 117,642,000 99,855,000 134,000,000 137,810,000 135,267,000 62,319,000 167,548,000 210,803,000 160,196,000 661,216,000 712,495,000 672,376,000 666,668,000 731,723,000 707,563,000 736,054,000 693,356,000 1,042,889,000 1,114,583,000 1,055,737,000 943,343,000 1,176,353,000 606,482,000 735,971,000 777,947,000 95,502,000 73,941,000 121,198,000 115,587,000                                              
        asset retirement obligations and other liabilities
      155,870,000 145,640,000 143,174,000 140,607,000 137,181,000 123,406,000 122,042,000 122,463,000 119,896,000 115,243,000 114,629,000 114,662,000 112,981,000 99,268,000 102,353,000 102,040,000 101,509,000 86,247,000 87,336,000 87,549,000 91,157,000 98,359,000 149,680,000 137,091,000 259,151,000 244,396,000 323,668,000 319,079,000 319,379,000 303,813,000 310,133,000 293,813,000 286,043,000 296,736,000 301,886,000 301,687,000 310,642,000 277,671,000 255,863,000 254,114,000 254,590,000 299,973,000 297,648,000 294,742,000 284,994,000 253,940,000 249,511,000 235,289,000 229,015,000 151,813,000 148,116,000 150,044,000 148,646,000 116,410,000 91,514,000 87,233,000 86,300,000 77,633,000 76,891,000 66,168,000 63,786,000 73,159,000 72,331,000 70,825,000 82,578,000 85,985,000 84,232,000 86,061,000 83,890,000  80,846,000 76,744,000 75,567,000                  
        total liabilities
      2,802,514,000 2,994,255,000 2,978,417,000 3,443,363,000 3,411,018,000 3,373,216,000 3,405,195,000 3,545,034,000 3,438,334,000 3,398,355,000 3,402,565,000 3,576,812,000 3,749,556,000 4,756,292,000 4,637,918,000 4,960,181,000 4,574,844,000 5,122,905,000 4,706,172,000 4,510,812,000 4,499,401,000 4,350,394,000 4,116,395,000 4,115,050,000 4,264,915,000 4,696,007,000 5,546,055,000 5,572,401,000 5,648,723,000 6,048,848,000 6,062,042,000 5,895,576,000 5,954,569,000 6,100,259,000 5,959,445,000 5,839,269,000 5,873,877,000 5,866,446,000 3,915,252,000 4,033,806,000 4,140,373,000 5,313,222,000 5,424,517,000 5,355,431,000 5,289,351,000 4,865,533,000 4,780,384,000 5,033,094,000 4,884,634,000 4,639,629,000 4,544,399,000 4,609,139,000 4,371,343,000 4,375,893,000 4,127,173,000 3,884,856,000 3,453,050,000    3,274,825,000                              
        commitments and contingencies
                                                                           71,156,000                     
        stockholders’ equity
                                                                                                
        preferred stock, 1 par, 10,000,000 shares authorized, none issued and outstanding
                                                                                                
        common stock
      2,696,000 2,686,000 2,686,000 2,685,000 2,674,000 2,674,000 2,674,000 2,673,000  2,658,000 2,657,000 2,657,000  2,629,000 2,628,000 2,627,000  2,598,000 2,598,000 2,596,000  2,562,000 2,560,000 2,556,000  2,514,000 2,514,000 2,512,000  2,495,000 2,494,000 2,492,000  2,481,000 2,481,000 2,476,000  2,471,000 1,701,000 1,698,000  1,693,000 1,693,000 1,690,000 1,687,000 1,687,000 1,687,000 1,638,000 1,634,000 1,634,000 1,634,000  1,626,000 1,626,000 1,624,000 1,622,000 1,613,000 1,611,000 1,610,000 1,607,000 1,601,000 1,600,000 1,600,000 1,594,000 1,583,000 1,576,000 1,573,000 1,565,000 1,556,000 1,552,000 1,551,000 1,501,000 1,497,000 1,490,000 1,484,000 1,396,000 1,389,000 1,385,000 1,379,000 1,312,000 1,299,000 865,000 863,000 815,000 812,000 695,000 693,000 569,000 564,000 561,000 
        common stock held in treasury, at cost, 33,915,000 shares at march 31, 2026 and 33,115,000 shares at december 31, 2025
      -773,610,000                                                                                          
        additional paid-in capital
      5,964,463,000 5,959,090,000 5,948,260,000 5,923,531,000 5,927,893,000 5,913,716,000 5,904,003,000 5,868,617,000 5,879,705,000 5,843,249,000 5,813,408,000 5,740,361,000 5,764,970,000 5,757,194,000 5,748,516,000 5,707,652,000 5,720,277,000 5,707,382,000 5,699,240,000 5,683,428,000 5,684,268,000 5,679,197,000 5,672,596,000 5,664,356,000 5,659,832,000 5,653,005,000 5,644,580,000 5,635,210,000 5,628,447,000 5,617,371,000 5,607,707,000 5,593,675,000 5,577,732,000 5,555,830,000 5,547,579,000 5,533,211,000 5,524,423,000 5,512,727,000 2,470,814,000 2,449,035,000 2,442,623,000 2,439,075,000 2,428,168,000 2,411,248,000 2,400,475,000 2,389,491,000 2,378,254,000 1,969,948,000 1,959,636,000 1,944,437,000 1,934,706,000 1,924,619,000 1,915,627,000 1,903,249,000 1,888,841,000 1,871,890,000 1,866,554,000 1,858,980,000 1,848,767,000 1,835,261,000 1,820,503,000 1,815,576,000 1,809,966,000 1,805,251,000 1,772,020,000 1,743,276,000 1,729,190,000 1,705,798,000 1,695,268,000 1,687,675,000 1,681,578,000 1,392,101,000 1,386,884,000 1,392,441,000 1,382,726,000 1,093,094,000 1,079,994,000              
        accumulated other comprehensive income
      412,000 568,000 582,000 597,000 611,000 600,000 616,000 632,000  495,000 485,000 476,000  37,000                                -222,000 1,950,000 4,996,000 6,236,000 19,733,000 36,888,000 56,051,000 83,909,000 67,297,000 157,038,000 200,159,000 156,627,000 86,209,000 45,940,000 43,694,000 67,470,000 99,988,000 42,622,000 58,250,000 6,421,000 19,402,000 54,868,000 91,355,000 77,507,000   -110,533,000 -26,825,000 12,974,000 11,239,000 -2,105,000 36,521,000 11,866,000 -69,770,000 -93,491,000 -147,127,000 -224,796,000 -82,058,000 -90,492,000 -43,301,000 -81,215,000 -62,838,000 -57,971,000 -42,852,000  
        retained deficit
      -591,567,000 -1,066,840,000 -1,189,653,000 -1,405,630,000 -1,480,580,000 -1,556,087,000 -1,587,385,000 -1,596,474,000 -1,668,778,000 -1,959,520,000 -1,989,641,000 -2,000,566,000 -2,462,401,000 -3,257,525,000 -3,611,086,000 -4,063,941,000 -3,607,055,000 -4,498,421,000 -4,148,154,000 -3,991,682,000 -4,018,685,000 -3,988,550,000 -3,308,502,000 -3,161,859,000 -3,306,834,000 -1,496,521,000 -1,463,912,000 -1,574,070,000                                                               
        total stockholders' equity
      4,602,394,000 4,203,508,000 4,126,694,000 3,939,361,000 3,936,657,000 3,868,087,000 3,861,028,000 3,826,767,000  3,447,580,000 3,387,607,000 3,305,455,000  2,163,484,000   2,085,663,000    1,637,535,000    2,347,488,000    4,059,431,000    5,774,272,000    5,408,368,000    2,759,658,000    3,457,429,000    2,414,452,000                                          
        total liabilities and stockholders’ equity
      7,404,908,000 7,197,763,000 7,105,111,000 7,382,724,000 7,347,675,000 7,241,303,000 7,266,223,000 7,371,801,000 7,203,885,000 6,845,935,000 6,790,172,000 6,882,267,000 6,625,562,000 6,919,776,000 6,615,103,000 6,560,285,000  6,304,189,000 6,229,433,000 6,174,660,000  6,012,898,000 6,452,211,000 6,589,638,000  8,854,199,000 9,728,308,000 9,635,064,000  11,866,136,000 11,826,077,000 11,730,168,000  11,637,739,000 11,621,336,000 11,421,745,000  11,327,259,000 6,380,179,000 6,705,150,000  8,397,904,000 8,805,931,000 8,844,887,000  8,034,450,000 7,800,558,000 7,482,775,000  7,030,630,000 6,930,182,000 6,866,531,000 6,728,735,000 6,657,720,000 6,543,894,000 6,277,945,000 5,845,470,000 5,476,478,000 5,309,907,000 5,615,247,000 5,498,586,000 5,837,165,000 5,762,845,000 5,642,101,000 5,395,881,000 5,396,382,000 5,435,999,000 5,715,258,000 5,562,543,000 5,271,194,000 4,879,656,000 4,487,695,000 4,016,508,000 3,848,426,000 3,675,676,000 3,280,884,000 3,187,674,000 3,051,250,000 2,871,786,000 2,034,953,000 2,018,985,000 1,970,424,000 1,802,678,000        
        natural gas and oil properties
       6,627,222,000 6,535,097,000 6,476,813,000                                                                                       
        current maturities of long-term debt
         606,434,000 608,269,000 617,383,000 620,067,000       528,149,000 531,643,000 749,483,000 218,017,000 217,909,000  45,377,000 45,356,000 45,334,000 59,334,000                                                                    
        bank debt
       125,650,000 121,092,000          9,509,000     23,976,000 114,025,000 116,074,000 693,123,000 696,172,000 628,221,000 545,270,000 464,319,000 318,919,000 885,286,000 884,652,000 932,018,000 1,257,199,000 1,304,584,000 1,180,227,000 1,208,467,000 1,082,708,000 949,948,000 841,188,000 876,428,000 930,669,000  23,149,000 86,427,000 987,000,000 364,000,000 912,000,000 723,000,000 649,000,000 480,000,000 594,000,000 500,000,000 427,000,000 309,000,000 47,000,000 739,000,000 461,000,000 235,000,000  187,000,000   480,000,000 274,000,000 165,000,000 475,000,000 354,000,000 324,000,000 398,000,000 403,000,000 807,000,000 693,000,000 550,000,000 206,000,000 592,500,000 303,500,000 266,000,000 446,500,000 537,500,000 452,000,000 384,700,000 397,600,000 246,100,000 269,200,000 279,800,000 265,700,000 262,900,000       
        senior notes
       1,091,117,000 1,090,607,000 1,090,107,000 1,089,614,000 1,089,131,000 1,088,655,000 1,755,713,000 1,774,229,000 1,773,436,000 1,772,655,000 1,833,238,000 1,832,451,000 1,831,675,000 1,830,498,000 1,829,734,000 2,707,770,000 2,706,495,000 2,922,632,000 2,921,750,000 2,329,745,000 2,328,585,000 2,510,256,000 2,592,960,000 2,659,844,000 2,766,322,000 2,858,445,000 2,857,297,000 2,856,166,000 2,855,048,000 2,853,948,000 2,852,860,000 2,851,754,000 2,850,692,000 2,850,100,000 2,849,088,000 2,848,591,000 2,847,564,000 738,616,000 738,362,000 738,101,000 750,000,000 750,000,000                                                
        common stock held in treasury, at cost, 31,625,711 shares at september 30, 2025 and 26,766,065 shares at december 31, 2024
       -691,996,000                                                                                         
        common stock held in treasury, at cost, 30,045,000 shares at june 30, 2025 and 26,766,065 shares at december 31, 2024
        -635,181,000                                                                                        
        common stock held in treasury, at cost, 28,591,527 shares at march 31, 2025 and 26,766,065 shares at december 31, 2024
         -581,822,000                                                                                       
        contingent consideration receivable
             8,000,000 8,000,000   24,500,000 24,500,000   29,500,000 29,500,000                                                                          
        natural gas and oil properties, successful efforts method
          11,878,427,000    11,225,482,000    10,655,879,000    10,175,570,000    9,751,114,000   10,261,914,000 10,213,737,000 12,339,782,000 13,032,323,000 13,300,145,000 13,085,206,000 13,643,196,000 13,666,487,000 13,457,654,000 13,216,453,000 13,061,390,000 12,843,905,000 12,551,347,000 12,386,153,000 12,200,382,000 9,005,011,000 8,965,379,000 8,996,336,000 10,656,621,000 10,966,160,000 10,687,735,000 10,567,971,000 10,102,115,000 9,732,010,000 9,309,743,000 9,032,881,000 8,667,682,000 8,369,641,000 8,128,200,000 8,111,775,000 8,000,845,000 7,596,430,000 7,161,054,000 6,784,027,000 6,420,030,000 5,999,665,000 5,669,791,000 6,561,454,000 6,748,261,000                             
        accumulated depletion and depreciation
          -5,456,727,000 -5,366,182,000 -5,279,146,000 -5,193,291,000 -5,107,801,000 -5,019,169,000 -4,933,579,000 -4,850,385,000 -4,765,475,000 -4,676,454,000 -4,588,675,000 -4,504,554,000 -4,420,914,000 -4,330,289,000 -4,239,713,000 -4,150,811,000 -4,064,305,000 -3,975,930,000 -4,369,793,000 -4,271,947,000 -4,172,702,000 -4,044,212,000 -3,911,646,000 -4,194,876,000 -4,062,021,000 -3,929,060,000 -3,961,365,000 -3,807,356,000 -3,649,716,000 -3,492,614,000 -3,338,463,000 -3,191,483,000 -3,129,816,000 -2,994,282,000 -2,864,358,000 -2,748,635,000 -2,635,031,000 -2,871,827,000 -2,725,802,000 -2,581,753,000 -2,590,398,000 -2,472,030,000 -2,336,666,000 -2,397,089,000 -2,274,444,000   -1,944,252,000 -2,015,591,000 -1,942,698,000 -1,825,390,000 -1,721,625,000 -1,626,461,000 -1,573,195,000 -1,447,300,000 -1,373,652,000 -1,639,397,000 -1,553,257,000 -1,466,754,000 -1,380,540,000 -1,409,888,000 -1,429,007,000 -1,337,153,000 -1,266,079,000 -1,186,934,000 -1,115,905,000 -1,043,099,000 -974,948,000 -939,769,000 -924,155,000 -872,158,000 -1,008,306,000 -964,551,000 -915,222,000 -873,727,000 -839,198,000 -806,908,000 -774,840,000 -749,344,000 -721,020,000  -681,500,000 -661,301,000 -651,403,000  -619,260,000 
        accumulated depreciation and amortization
          -70,306,000 -69,988,000 -69,659,000 -71,279,000 -70,943,000 -73,309,000 -72,993,000 -72,625,000 -72,204,000 -71,781,000 -72,049,000 -71,615,000 -71,184,000 -70,734,000 -76,677,000 -76,228,000 -75,717,000 -75,203,000 -79,760,000 -77,493,000 -96,708,000 -95,876,000 -104,620,000 -103,548,000 -102,132,000 -101,402,000 -101,643,000 -101,294,000 -99,695,000 -98,469,000 -98,024,000 -97,653,000 -95,923,000 -96,603,000 -94,606,000 -92,572,000 -90,558,000 -98,700,000 -95,584,000 -92,942,000 -90,227,000 -87,083,000 -84,807,000 -87,955,000 -85,841,000   -78,149,000 -76,150,000 -73,142,000 -70,901,000 -70,635,000 -70,671,000 -67,715,000 -64,459,000 -61,303,000 -61,355,000 -58,837,000 -54,920,000 -52,283,000 -69,199,000 -69,824,000 -65,114,000 -60,840,000 -56,434,000 -53,189,000 -49,443,000 -46,905,000 -43,676,000 -40,577,000 -37,692,000 -35,149,000 -32,923,000 -31,057,000 -29,467,000 -27,695,000 -25,966,000 -25,053,000 -24,863,000 -23,568,000 -22,141,000 -21,094,000 -20,485,000 -19,702,000 -18,912,000 -18,223,000 
        common stock held in treasury, at cost, 26,766,065 shares at december 31, 2024 and 24,716,065 shares at december 31, 2023
          -513,941,000                                                                                      
        natural gas properties, successful efforts method
           11,715,018,000 11,563,777,000 11,393,388,000  11,090,501,000 10,950,249,000 10,800,630,000  10,548,054,000 10,412,520,000 10,291,519,000  10,068,245,000 9,973,112,000 9,853,906,000  9,646,901,000 10,363,419,000                                                                    
        common stock held in treasury, at cost, 26,116,065 shares at september 30, 2024 and 24,716,065 shares at december 31, 2023
           -492,816,000                                                                                     
        common stock held in treasury, at cost, 25,020,936 shares at june 30, 2024 and 24,716,065 shares at december 31, 2023
            -458,880,000                                                                                    
        common stock held in treasury, at cost, 24,716,065 shares at march 31, 2024 and 24,716,065 shares at december 31, 2023
             -448,681,000                                                                                   
        preferred stock, 1 par 10,000,000 shares authorized, none issued and outstanding
                                                                                                
        at december 31, 2023 and 262,887,265 issued at december 31, 2022
              2,658,000                                                                                  
        common stock held in treasury, at cost, 24,716,065 shares at december 31, 2023 and
                                                                                                
        24,001,535 shares at december 31, 2022
              -448,681,000                                                                                  
        accumulated other comprehensive gain
              647,000    467,000                                                                              
        total stockholders’ equity
              3,765,551,000    2,876,006,000  1,977,185,000 1,600,104,000  1,181,284,000 1,523,261,000 1,663,848,000  1,662,504,000 2,335,816,000 2,474,588,000  4,158,192,000 4,182,253,000 4,062,663,000  5,817,288,000 5,764,035,000 5,834,592,000  5,537,480,000 5,661,891,000 5,582,476,000  5,460,813,000 2,464,927,000 2,671,344,000  3,084,682,000 3,381,414,000 3,489,456,000  3,168,917,000 3,020,174,000 2,449,681,000  2,391,001,000 2,385,783,000 2,257,392,000 2,357,392,000 2,281,827,000 2,416,721,000 2,393,089,000 2,392,420,000 2,323,753,000 2,244,927,000 2,183,618,000 2,223,761,000 2,575,270,000 2,526,839,000 2,534,936,000 2,378,589,000 2,385,329,000 2,442,826,000 2,508,571,000 2,457,833,000 2,253,953,000 1,723,855,000 1,643,998,000 1,728,022,000 1,708,812,000 1,648,109,000 1,298,914,000 1,256,161,000 1,224,129,000 1,086,819,000 814,643,000 696,923,000 567,656,000 682,616,000        
        common stock held in treasury, 24,401,065 shares at september 30, 2023 and 24,001,535 shares at december 31, 2022
               -439,302,000                                                                                 
        common stock held in treasury, 24,401,065 shares at june 30, 2023 and 24,001,535 shares at december 31, 2022
                -439,302,000                                                                                
        common stock held in treasury, 24,324,065 shares at march 31, 2023 and 24,001,535 shares at december 31, 2022
                 -437,473,000                                                                               
        prepaid and other current assets
                  32,905,000    15,230,000    13,408,000                                                                      
        at december 31, 2022 and 259,795,554 issued at december 31, 2021
                  2,629,000                                                                              
        common stock held in treasury, at cost, 24,001,535 shares at december 31, 2022 and
                                                                                                
        10,002,646 shares at december 31, 2021
                  -429,659,000                                                                              
        common stock held in treasury, 20,603,035 shares at september 30, 2022 and 10,002,646 shares at december 31, 2021
                   -338,851,000                                                                             
        common stock held in treasury, 14,601,535 shares at june 30, 2022 and 10,002,646 shares at december 31, 2021
                    -162,854,000                                                                            
        accumulated other comprehensive loss
                    -19,000 -75,000 -150,000 -268,000 -338,000 -409,000 -479,000 -574,000 -644,000 -715,000 -788,000 -478,000 -538,000 -598,000 -658,000 -1,124,000 -1,194,000 -1,263,000 -1,332,000                                     -31,321,000 -279,428,000                    
        deferred tax assets
                     35,436,000                                 51,414,000                                          
        common stock held in treasury, 10,601,535 shares at march 31, 2022 and 10,002,646 shares at december 31, 2021
                     -46,159,000                                                                           
        senior subordinated notes
                         17,393,000 17,384,000 17,375,000 26,656,000 48,799,000 48,774,000 48,749,000 48,724,000 48,700,000 48,677,000 48,653,000 48,630,000 48,607,000 48,585,000 48,562,000 48,541,000 48,519,000 48,498,000 48,476,000 1,828,345,000 1,827,554,000 1,826,775,000                                                  
        stockholders' equity
                                                                                                
        at december 31, 2021 and 256,353,887 issued at december 31, 2020
                      2,598,000                                                                          
        common stock held in treasury, at cost, 10,002,646 shares at december 31, 2021 and 10,005,795
                                                                                                
        shares at december 31, 2020
                      -30,007,000                                                                          
        total liabilities and stockholders' equity
                      6,660,507,000    6,136,936,000    6,612,403,000    9,708,154,000    11,728,841,000    11,282,245,000    6,900,031,000    8,746,780,000    7,299,086,000                                          
        common stock held in treasury, 10,002,646 shares at september 30, 2021 and 10,005,795 shares at december 31, 2020
                       -30,007,000                                                                         
        common stock held in treasury, 10,004,683 shares at june 30, 2021 and 10,005,795 shares at december 31, 2020
                        -30,085,000                                                                        
        common stock held in treasury, 10,004,683 shares at march 31, 2021 and 10,005,795 shares at december 31, 2020
                         -30,085,000                                                                       
        at december 31, 2020 and 251,438,936 issued at december 31, 2019
                          2,563,000                                                                      
        common stock held in treasury, at cost, 10,005,795 shares at december 31, 2020 and 1,808,133
                                                                                                
        shares at december 31, 2019
                          -30,132,000                                                                      
        common stock held in treasury, 10,005,795 shares at september 30, 2020 and 1,808,133 shares at december 31, 2019
                           -30,131,000                                                                     
        common stock held in treasury, 10,007,327 shares at june 30, 2020 and 1,808,133 shares at december 31, 2019
                            -30,194,000                                                                    
        common stock held in treasury, 9,807,327 shares at march 31, 2020 and 1,808,133 shares at december 31, 2019
                             -29,750,000                                                                   
        at december 31, 2019 and 249,519,687 issued at december 31, 2018
                              2,514,000                                                                  
        common stock held in treasury, at cost, 1,808,133 shares at december 31, 2019 and 9,665
                                                                                                
        shares at december 31, 2018
                              -7,236,000                                                                  
        inventory and other
                               25,895,000 26,706,000 25,128,000 22,964,000 24,488,000 21,967,000 30,064,000 21,346,000 21,379,000 18,406,000 20,146,000 26,573,000 36,445,000 20,662,000 25,224,000 33,217,000 23,038,000 20,914,000 17,315,000 17,854,000 16,961,000 18,664,000 17,353,000 12,451,000 12,898,000 16,131,000 16,600,000 22,315,000 18,423,000 15,997,000 14,589,000 14,070,000 13,600,000 11,912,000 18,605,000 21,433,000 23,699,000 21,391,000 21,743,000 21,292,000 20,735,000 22,179,000 22,052,000 19,927,000 15,869,000 40,371,000 9,381,000 11,387,000 12,102,000 10,238,000 12,819,000 14,714,000 15,493,000 14,680,000 14,255,000 12,593,000 14,243,000 15,903,000 7,691,000 9,168,000 13,522,000 9,191,000 9,774,000 3,329,000 5,564,000 
        common stock held in treasury, 8,133 shares at september 30, 2019 and 9,665 shares at december 31, 2018
                               -328,000                                                                 
        common stock held in treasury, 9,665 shares at june 30, 2019 and 9,665 shares at december 31, 2018
                                -391,000                                                                
        common stock held in treasury, 9,665 shares at march 31, 2019 and 9,665 shares at december 31, 2018
                                 -391,000                                                               
        goodwill
                                   1,641,197,000 1,641,197,000 1,641,197,000 1,641,197,000 1,641,197,000 1,646,710,000 1,654,292,000 1,654,292,000 1,630,981,000                                                     
        at december 31, 2018 and 248,144,397 issued at december 31, 2017
                                  2,495,000                                                              
        common stock held in treasury, 9,665 shares at december 31, 2018 and 14,967 shares
                                                                                                
        at december 31, 2017
                                  -391,000                                                              
        retained (deficit) earnings
                                  -1,570,462,000                                                              
        common stock held in treasury, 10,067 shares at september 30, 2018 and 14,967 shares at december 31, 2017
                                   -404,000                                                             
        retained earnings
                                   198,950,000 155,432,000 240,257,000 195,990,000 -20,232,000 112,430,000 47,843,000 -117,317,000 -52,684,000 -5,855,000 222,482,000 317,587,000 646,189,000 953,911,000 1,079,280,000 1,058,355,000 781,049,000 641,379,000 476,554,000 450,583,000 428,948,000 416,306,000 278,859,000 360,990,000 314,534,000 374,873,000 325,696,000 373,969,000 383,409,000 355,099,000 310,246,000 341,699,000 665,822,000 680,392,000 677,735,000 606,529,000 629,632,000 665,752,000 718,410,000 692,059,000 604,604,000 325,488,000 366,263,000 371,800,000 343,473,000 289,021,000 229,267,000 160,313,000 164,054,000 115,494,000 66,573,000 13,800,000 -26,258,000 -49,196,000 -69,224,000 -89,597,000 -99,799,000 -111,246,000 -118,129,000 -124,011,000 -127,342,000 
        common stock held in treasury, 10,067 shares at june 30, 2018 and 14,967 shares at december 31, 2017
                                    -404,000                                                            
        common stock held in treasury, 14,072 shares at march 31, 2018 and 14,967 shares at december 31, 2017
                                     -569,000                                                           
        at december 31, 2017 and 247,174,903 issued at december 31, 2016
                                      2,481,000                                                          
        common stock held in treasury, 14,967 shares at december 31, 2017 and 30,547 shares
                                                                                                
        at december 31, 2016
                                      -599,000                                                          
        common stock held in treasury, 14,967 shares at september 30, 2017 and 30,547 shares at december 31, 2016
                                       -599,000                                                         
        common stock held in treasury, 14,967 shares at june 30, 2017 and 30,547 shares at december 31, 2016
                                        -599,000                                                        
        common stock held in treasury, 26,547 shares at march 31, 2017 and 30,547 shares at december 31, 2016
                                         -1,054,000                                                       
        at december 31, 2016 and 169,375,743 issued at december 31, 2015
                                          2,471,000                                                      
        common stock held in treasury, 30,547 shares at december 31, 2016 and 59,283 shares
                                                                                                
        at december 31, 2015
                                          -1,209,000                                                      
        common stock held in treasury, 44,772 shares at september 30, 2016 and 59,283 shares at december 31, 2015
                                           -1,701,000                                                     
        common stock held in treasury, 45,511 shares at june 30, 2016 and 59,283 shares at december 31, 2015
                                            -1,733,000                                                    
        common stock held in treasury, 49,563 shares at march 31, 2016 and 59,283 shares at december 31, 2015
                                             -1,871,000                                                   
        at december 31, 2015 and 168,711,131 issued at december 31, 2014
                                              1,693,000                                                  
        common stock held in treasury, 59,283 shares at december 31, 2015 and 82,954 shares
                                                                                                
        at december 31, 2014
                                              -2,245,000                                                  
        subordinated notes
                                               1,850,000,000 2,350,000,000 2,350,000,000 2,350,000,000 2,350,000,000 2,350,000,000 2,640,866,000 2,640,516,000 2,640,170,000 2,639,835,000 2,889,505,000 2,139,185,000 2,388,869,000 2,388,562,000 2,388,260,000 1,787,967,000 1,787,678,000 1,787,398,000 1,686,816,000 1,686,536,000 1,686,260,000 1,384,562,000 1,384,194,000      1,097,459,000 1,097,356,000 847,257,000 847,158,000 847,062,000 596,967,000 596,874,000 596,782,000 596,694,000 497,102,000 347,025,000 346,948,000 346,873,000 346,799,000 346,727,000 196,656,000 196,587,000 205,422,000 110,011,000 109,980,000 112,656,000 
        common stock held in treasury, 60,015 shares at september 30, 2015 and 82,954 shares at december 31, 2014
                                               -2,275,000                                                 
        common stock held in treasury, 62,511 shares at june 30, 2015 and 82,954 shares at december 31, 2014
                                                -2,358,000                                                
        common stock held in treasury, 73,537 shares at march 31, 2015 and 82,954 shares at december 31, 2014
                                                 -2,762,000                                               
        equity method investments
                                                     123,791,000 129,034,000 127,236,000 132,115,000 129,954,000 132,449,000 135,867,000 135,825,000 137,873,000 138,130,000 136,244,000 139,935,000 142,353,000 155,105,000 152,269,000 150,748,000 147,662,000 146,809,000 151,824,000 150,979,000 152,132,000 147,126,000 140,394,000 127,812,000 114,766,000 113,722,000 111,735,000 109,992,000                
        common stock held in treasury, 82,954 shares at december 31, 2014 and 98,520 shares at december 31, 2013
                                                  -3,088,000                                              
        deferred tax asset
                                                   2,010,000 39,411,000 40,362,000  2,179,000  12,646,000       6,340,000 1,639,000     8,054,000     28,582,000 142,552,000 68,549,000 26,907,000     2,647,000 37,375,000 36,969,000 61,677,000 96,520,000 36,249,000 43,702,000 26,310,000 37,084,000 32,533,000 30,159,000 19,871,000 14,956,000 
        transportation and field assets
                                                   125,638,000 123,471,000 120,036,000 118,625,000 117,566,000 116,578,000 116,448,000 117,717,000 117,364,000 117,519,000 120,791,000 123,349,000 121,979,000 121,905,000 121,274,000 136,088,000 137,586,000 135,727,000 133,330,000 161,034,000 164,102,000 157,066,000 151,169,000 142,662,000 121,426,000 120,706,000 111,611,000 104,802,000 99,256,000 92,837,000 86,270,000 80,066,000 74,919,000 72,607,000 68,559,000 65,210,000 62,101,000 62,735,000 60,940,000 59,423,000 57,163,000 56,564,000 41,581,000 41,218,000 36,004,000 
        deferred tax liability
                                                   948,904,000 894,115,000 778,955,000   21,312,000  37,924,000 37,300,000 82,170,000 84,084,000 56,595,000 9,593,000   11,848,000 36,038,000 7,952,000 17,309,000  2,462,000 23,986,000 46,480,000 32,984,000                      
        deferred compensation liability
                                                   197,277,000 240,787,000 235,307,000 247,537,000 207,404,000 207,906,000 222,700,000 187,604,000 198,082,000 170,763,000 165,958,000 169,188,000 165,810,000 159,024,000 169,278,000 134,488,000 116,601,000 113,247,000 127,749,000 135,541,000 132,517,000 109,730,000 103,482,000 93,247,000 112,459,000 149,537,000 143,947,000 120,223,000 133,962,000 123,484,000 101,463,000 90,094,000 82,290,000 89,309,000 88,245,000 73,492,000 68,334,000 49,535,000 43,790,000 38,799,000 32,839,000 27,919,000 21,556,000 16,981,000 12,732,000 
        common stock held in treasury, 82,954 shares at september 30, 2014 and 98,520 shares at december 31, 2013
                                                   -3,088,000                                             
        common stock held in treasury, 83,184 shares at june 30, 2014 and 98,520 shares at december 31, 2013
                                                    -3,096,000                                            
        common stock held in treasury, 93,275 shares at march 31, 2014 and 98,520 shares at december 31, 2013
                                                     -3,455,000                                           
        common stock held in treasury, 98,520 shares at december 31, 2013 and 127,798 shares at december 31, 2012
                                                      -3,637,000                                          
        unrealized derivatives
                                                       55,993,000 97,052,000                                        
        common stock held in treasury, 101,301 shares at september 30, 2013 and 127,798 shares at december 31, 2012
                                                                                                
        common stock held in treasury, 101,301 shares at june 30, 2013 and 127,798 shares at december 31, 2012
                                                                                                
        assets held for sale
                                                         165,478,000            18,011,000             79,304,000 117,275,000 140,000,000            
        unrealized derivative gain
                                                         23,052,000 137,552,000 131,841,000 251,236,000 216,508,000 173,921,000 136,488,000 53,674,000 62,286,000 131,450,000 153,585,000 83,864,000 121,211,000 21,545,000 78,410,000 169,856,000 279,383,000 221,430,000 23,958,000 1,603,000  53,018,000 72,153,000 65,285,000 30,443,000 93,588,000 52,558,000 3,482,000 200,000 425,000 580,000 641,000 721,000 534,000 379,000 495,000 21,000 116,000 164,000 
        liabilities held for sale
                                                         8,346,000                                       
        unrealized derivative loss
                                                         19,662,000 4,471,000 4,294,000 3,283,000 4,767,000    593,000 352,000 1,957,000 2,781,000 10,016,000 14,488,000 9,573,000 2,412,000  10,000 40,853,000 524,354,000 205,697,000 30,457,000 7,657,000 6,894,000 17,831,000 4,621,000 11,172,000 67,825,000 84,007,000 160,101,000 260,366,000 92,831,000 116,000,000 61,005,000 103,420,000 78,673,000 76,604,000 54,345,000 31,849,000 
        at march 31, 2013 and 162,641,896 issued at december 31, 2012
                                                         1,630,000                                       
        common stock held in treasury, 101,772 shares at march 31, 2013
                                                                                                
        and 127,798 shares at december 31, 2012
                                                         -3,767,000                                       
        liabilities of discontinued operations
                                                              653,000 1,064,000                                 
        common stock held in treasury, 127,798 shares at december 31, 2012 and 171,426 shares at december 31, 2011
                                                          -4,760,000                                      
        common stock held in treasury, 131,158 shares at september 30, 2012 and 171,426 shares at december 31, 2011
                                                           -4,879,000                                     
        common stock held in treasury, 153,806 shares at june 30, 2012 and 171,426 shares at december 31, 2011
                                                            -5,655,000                                    
        common stock held in treasury, 169,554 shares at march 31, 2012 and 171,426 shares at december 31, 2011
                                                             -6,278,000                                   
        assets of discontinued operations
                                                               2,626,000 16,351,000 856,195,000                               
        common stock held in treasury, 171,426 shares at december 31, 2011 and 204,556 shares at december 31, 2010
                                                              -6,343,000                                  
        common stock held in treasury, 174,715 shares at september 30, 2011 and 204,556 shares at december 31, 2010
                                                               -6,456,000                                 
        current liabilities of discontinued operations
                                                                19,381,000 16,288,000                               
        long-term liabilities of discontinued operations
                                                                 2,226,000                               
        common stock held in treasury, 175,653 shares at june 30, 2011 and 204,556 shares at december 31, 2010
                                                                -6,489,000                                
        common stock held in treasury, 196,016 shares at march 31, 2011 and 204,556 shares at december 31, 2010
                                                                 -7,190,000                               
        common stock held in treasury, 204,556 shares at december 31, 2010 and 217,327 shares at december 31, 2009
                                                                  -7,512,000                              
        cash and equivalents
                                                                   2,078,000 166,858,000 286,514,000  859,000 2,152,000 756,000 753,000 265,000 73,000 90,000 4,018,000 187,000 16,594,000 167,855,000 2,382,000 2,251,000 6,788,000 1,349,000 4,750,000 1,388,000 4,941,000 18,979,000 18,382,000 501,000 7,571,000 913,000 631,000 1,635,000 
        common stock held in treasury, 210,269 shares at september 30, 2010 and 217,327 shares at december 31, 2009
                                                                   -7,716,000                             
        oil and gas properties, successful efforts method
                                                                    6,522,267,000 6,122,859,000 6,308,707,000 6,300,946,000 6,161,834,000 6,260,597,000 6,039,644,000 5,787,886,000 5,205,547,000 4,936,402,000 4,443,577,000 4,286,179,000 4,066,608,000 3,798,156,000 3,641,227,000 3,461,697,000 3,306,355,000 2,643,636,000 2,548,090,000 2,470,632,000 2,367,134,000 2,142,476,000 2,097,026,000 1,770,148,000 1,719,691,000 1,374,697,000 1,362,811,000 1,260,068,000 
        common stock held in treasury, 210,972 shares at june 30, 2010 and 217,327 shares at december 31, 2009
                                                                    -7,741,000                            
        common stock held in treasury, 215,425 shares at march 31, 2010 and 217,327 shares at december 31, 2009
                                                                     -7,894,000                           
        subordinated notes and other long term debt
                                                                      1,383,833,000 1,383,480,000 1,383,134,000 1,097,770,000 1,097,668,000                      
        common stock held in treasury, 217,327 shares at december 31, 2009 and 233,900 shares at december 31, 2008
                                                                      -7,964,000                          
        common stock held in treasury, 233,900 shares at september 30, 2009 and december 31, 2008
                                                                       -8,557,000                         
        common stock held in treasury, 233,900 shares at june 30, 2009 and december 31, 2008
                                                                        -8,557,000                        
        common stock held in treasury, 233,900 shares at march 31, 2009 and december 31, 2008
                                                                         -8,557,000                       
        common stock held in treasury, 233,900 shares at december 31, 2008 and 155,500 shares at december 31, 2007
                                                                          -8,557,000                      
        deferred tax
                                                                           744,070,000 535,575,000 586,932,000 590,786,000 562,703,000 527,036,000 485,279,000 468,643,000 469,612,000 418,835,000 213,071,000 174,817,000    117,713,000    10,843,000  
        preferred stock, 1 par, 10,000,000 shares authorized, none outstanding
                                                                                                
        common stock held in treasury — 233,900 shares at september 30, 2008 and 155,500 shares at december 31, 2007
                                                                           -8,557,000                     
        common stock held in treasury - 155,500 shares at june 30, 2008 and december 31, 2007
                                                                            -5,334,000                    
        assets:
                                                                                                
        common stock held in treasury - 155,500 shares at march 31, 2008 and december 31, 2007
                                                                             -5,334,000                   
        assets of discontinued operation
                                                                                                
        liabilities of discontinued operation
                                                                                                
        common stock held in treasury – 155,500 shares at december 31, 2007
                                                                              -5,334,000                  
        asset retirement obligation
                                                                               1,251,000 3,509,000 3,457,000    3,168,000  5,963,000 5,706,000 5,064,000 6,822,000 14,712,000 10,858,000 5,333,000 5,814,000 8,335,000 
        asset retirement obligation and other liabilities
                                                                               80,953,000                 
        common stock held in treasury, 155,500 shares at september 30, 2007, none at december 31, 2006 – at cost
                                                                               -5,334,000                 
        common stock held by employee benefit trust, 2,185,898 shares at september 30, 2007 and 1,853,279 shares at december 31, 2006 - at cost
                                                                               -36,232,000                 
        common stock held by employee benefit trust, 2,201,160 issued at june 30, 2007 and 1,853,279 issued at december 31, 2006 — at cost
                                                                                -36,361,000                
        equity method investment
                                                                                 14,761,000 13,618,000 12,523,000 12,268,000            
        common stock held by employee benefit trust, 1,830,697 and 1,853,279 shares, respectively, at cost
                                                                                 -22,738,000               
        common stock held in treasury – 5,826 shares at december 31, 2005
                                                                                                
        common stock held by employee benefit trust, 1,853,279 and 1,971,605 shares, respectively, at cost
                                                                                  -22,056,000              
        deferred compensation
                                                                                      -4,635,000 -2,350,000 -1,373,000 -1,186,000  -1,403,000 -1,431,000 -773,000   
        current assets
                                                                                                
        current liabilities
                                                                                                
        common stock held in treasury – none at september 30, 2006 and 5,826 shares at december 31, 2005
                                                                                                
        capital in excess of par value
                                                                                   1,068,763,000 1,060,845,000 859,532,000 845,519,000 831,579,000 825,487,000 712,790,000 707,869,000 549,453,000 546,822,000 402,509,000 399,662,000 397,425,000 
        common stock held by employee benefit trust, 1,881,176 shares at september 30, 2006 and 1,971,605 shares at december 31, 2005, at cost
                                                                                   -21,939,000             
        common stock held by employee benefit trust, 1,959,202 shares and 1,971,605 shares, respectively, at cost
                                                                                    -21,129,000            
        common stock held in treasury – 5,826 at december 31, 2005
                                                                                                
        common stock held by employee benefit trust, 1,956,112 and 1,971,605 shares, respectively, at cost
                                                                                     -19,283,000           
        long-term capital lease obligation
                                                                                         2,000 5,000      
        common stock held in treasury — 5,826 at december 31, 2005
                                                                                      -81,000          
        common stock held by employee benefit trust, 1,971,605 and 2,162,626 shares, respectively, at cost
                                                                                      -11,852,000          
        other
                                                                                       24,900,000 24,420,000 23,378,000  15,205,000 14,653,000 10,322,000 9,868,000 4,353,000 
        deferred taxes
                                                                                       141,292,000 151,050,000 119,109,000  19,425,000 18,748,000 15,374,000  12,918,000 
        common stock held in treasury — 70,837 at september 30, 2005
                                                                                       -1,482,000         
        stock held by employee benefit trust, 1,419,300 and 1,441,751 shares, respectively, at cost
                                                                                       -9,902,000         
        common stock held in treasury – 115,256 at june 30, 2005
                                                                                        -2,416,000        
        stock held by employee benefit trust, 1,396,454 and 1,441,751 shares, respectively, at cost
                                                                                        -8,691,000        
        accounts receivable
                                                                                         63,725,000 81,942,000 46,019,000 51,412,000 34,895,000  36,483,000 
        current assets - sum
                                                                                         134,818,000 136,336,000 100,405,000 106,102,000 80,162,000  63,602,000 
        liabilities and stockholders’ equity
                                                                                                
        current liabilities accounts payable
                                                                                         62,323,000       
        liabilities and stockholders’ equity - sum
                                                                                         205,580,000       
        stockholders’ equity (notes 9 and 10) preferred stock, 1 par, 10,000,000 shares authorized, none issued and outstanding
                                                                                                
        stock held by employee benefit trust, 1,431,526 and 1,441,751 shares, respectively, at cost
                                                                                         -8,608,000       
        accumulated depletion
                                                                                          -694,667,000    -639,429,000  
        current liabilities - sum
                                                                                          177,162,000 193,428,000 152,302,000 123,107,000 106,964,000 84,670,000 
        senior debt
                                                                                          423,900,000 306,900,000 320,000,000 171,100,000 178,200,000 94,300,000 
        non-recourse debt
                                                                                             67,500,000 70,000,000 71,500,000 
        preferred stock, 1 par, 10,000,000 shares authorized, 5.9% cumulative convertible preferred stock, none issued and outstanding at december 31, 2004, 1,000,000 shares issued and outstanding at december 31, 2003, entitled in liquidation to 50.0 million
                                                                                                
        stock held by employee benefit trust, 1,441,751 and 1,671,386 shares, respectively, at cost
                                                                                          -8,186,000      
        deferred compensation expense
                                                                                          -1,257,000    -856,000 -132,000 
        ipf receivables
                                                                                           2,900,000 4,900,000 4,400,000 4,400,000 4,800,000 
        preferred stock, 1 par, 10,000,000 shares authorized, 5.9% cumulative convertible preferred stock, 1,000,000 shares issued and outstanding at september 30, 2004, and december 31, 2003 entitled in liquidation to 50.0 million
                                                                                           50,000,000     
        stock held by employee benefit trust, 1,627,424 and 1,671,386 shares, respectively, at cost
                                                                                           -9,009,000     
        preferred stock, 1 par, 10,000,000 shares authorized, 5.9% cumulative convertible preferred stock, 1,000,000 shares issued and outstanding at june 30, 2004, and december 31, 2003 entitled in liquidation to 50.0 million
                                                                                            50,000,000    
        stock held by employee benefit trust, 1,716,389 and 1,671,386 shares, respectively, at cost
                                                                                            -9,426,000    
        preferred stock, 1 par, 10,000,000 shares authorized, 5.9% cumulative convertible preferred stock, 1,000,000 shares issued and outstanding at march 31, 2004, and december 31, 2003 entitled in liquidation to 50.0 million
                                                                                             50,000,000   
        stock held by employee benefit trust, 1,673,001 and 1,671,386 shares, respectively, at cost
                                                                                             -8,705,000   
        trust preferred – manditorily redeemable securities of subsidiary
                                                                                                
        stock held by employee benefit trust, 1,671,386 and 1,324,537 shares, respectively, at cost
                                                                                              -8,441,000  
        trust preferred securities - manditorily redeemable security of subsidiary
                                                                                               1,411,000 
        stock held by employee benefit trust, 1,324,537 and 1,700,992 shares, respectively, at cost
                                                                                               -8,543,000 
        other comprehensive income
                                                                                               -28,897,000 
      Cashflow Statements:
      Quarterly
      Annual
        Unit: USD2026-03-31 2025-09-30 2025-06-30 2025-03-31 2024-12-31 2024-09-30 2024-06-30 2024-03-31 2023-12-31 2023-09-30 2023-06-30 2023-03-31 2022-12-31 2022-09-30 2022-06-30 2022-03-31 2021-12-31 2021-09-30 2021-06-30 2021-03-31 2020-12-31 2020-09-30 2020-06-30 2020-03-31 2019-12-31 2019-09-30 2019-06-30 2019-03-31 2018-12-31 2018-09-30 2018-06-30 2018-03-31 2017-12-31 2017-09-30 2017-06-30 2017-03-31 2016-12-31 2016-09-30 2016-06-30 2016-03-31 2015-12-31 2015-09-30 2015-06-30 2015-03-31 2014-12-31 2014-09-30 2014-06-30 2014-03-31 2013-12-31 2013-09-30 2012-12-31 2012-09-30 2012-06-30 2012-03-31 2011-12-31 2011-09-30 2011-06-30 2011-03-31 2010-12-31 2010-09-30 2010-06-30 2010-03-31 2009-12-31 2009-09-30 2009-06-30 2009-03-31 2008-12-31 2008-09-30 2008-06-30 2008-03-31 2007-12-31 2007-09-30 2007-06-30 2007-03-31 2006-12-31 2006-09-30 2006-06-30 2006-03-31 2005-12-31 2005-09-30 2005-06-30 2005-03-31 2004-12-31 2004-09-30 2004-06-30 2004-03-31 2003-12-31 
                                                                                               
          operating activities:
                                                                                               
          net income
        341,630,000 144,307,000 237,578,000 97,052,000 94,842,000 50,656,000 28,704,000 92,138,000 310,034,000 49,430,000 30,231,000 481,447,000 814,236,000 373,087,000 452,855,000 -456,808,000 891,366,000   27,151,000 -30,135,000 -680,048,000 -146,569,000 144,975,000 -1,805,320,000 -27,581,000 115,185,000 1,419,000 -1,764,422,000 48,539,000 -79,836,000 49,238,000 221,185,000 -127,700,000 69,550,000 170,111,000 -162,771,000 -41,971,000 -224,936,000 -91,710,000 -321,827,000 -300,948,000 -118,594,000 27,684,000 284,054,000 146,418,000 171,389,000 32,521,000 28,171,000 19,178,000 52,962,000 -53,836,000 55,676,000 -41,800,000 -2,989,000 34,755,000 51,293,000 -25,033,000 -317,719,000 -8,168,000 9,052,000 77,579,000 -16,777,000   32,608,000 93,676,000 285,324,000 -34,582,000 1,740,000 34,311,000 58,915,000 64,206,000 73,137,000 427,000 51,330,000 51,549,000 55,396,000 42,682,000 24,665,000 21,661,000 22,003,000 14,543,000 12,879,000 8,189,000 6,620,000 4,633,000 
          adjustments to reconcile net income to net cash from operating activities:
                                                                                               
          deferred income tax expense
        85,730,000 40,059,000 59,819,000 10,683,000 -33,720,000 14,291,000 -21,093,000 16,622,000 78,365,000 15,097,000 15,012,000 119,180,000 189,631,000      -3,831,000 2,521,000   -43,277,000 50,581,000   40,099,000 5,688,000  24,137,000 -28,518,000 42,676,000  -71,992,000 57,651,000 112,395,000        22,366,000 166,052,000 93,522,000 117,977,000 18,951,000 -28,180,000 11,866,000 31,742,000 -29,074,000   -425,000 22,547,000 32,695,000 -19,897,000 -175,346,000 -5,892,000 6,453,000 48,934,000 14,658,000   18,827,000 36,996,000 170,400,000 -21,818,000 6,590,000 24,743,000 34,802,000 34,449,000 4,447,000 20,317,000 38,899,000 30,116,000 32,482,000 24,813,000 14,431,000 12,946,000 13,107,000 8,614,000 7,454,000 4,835,000 3,887,000  
          depletion, depreciation and amortization
        88,526,000 93,793,000 91,514,000 90,559,000 92,484,000 91,137,000 87,598,000 87,137,000  87,619,000                                  147,290,000    128,682,000     108,802,000 100,151,000         104,191,000 97,208,000 88,713,000 84,320,000 69,625,000 81,173,000 77,463,000 71,570,000 71,530,000 57,001,000 51,465,000 47,332,000 52,018,000 46,243,000 36,833,000 34,567,000 34,416,000 32,900,000 30,436,000 29,762,000 31,973,000 26,306,000 22,444,000 22,248,000  
          abandonment and impairment of unproved properties
        3,897,000 4,899,000 6,781,000 4,574,000 -201,000 4,723,000 1,524,000 2,371,000 2,051,000 11,012,000 25,786,000 7,510,000 16,289,000 3,186,000 7,137,000 1,996,000 2,000,000 2,177,000 3,029,000 2,730,000 5,667,000 5,524,000 5,413,000 1,193,711,000 16,202,000 12,770,000 12,659,000 441,750,000 6,549,000 54,922,000 11,773,000 217,544,000 42,568,000 5,193,000 4,420,000 6,307,000 6,082,000 7,059,000 10,628,000 11,432,000 12,366,000 12,330,000 11,491,000 14,308,000 13,444,000 9,332,000 9,995,000 5,852,000 11,692,000 21,230,000 40,118,000 43,641,000 20,289,000 27,639,000 16,627,000 18,900,000 16,537,000 23,533,000 20,534,000 13,497,000 12,407,000 28,959,000 24,053,000 40,954,000 19,572,000                      
          derivative fair value loss
        33,429,000  -154,747,000 158,957,000     -291,059,000 -38,394,000 -123,734,000 -367,967,000 -448,181,000 457,708,000 239,922,000 939,057,000 -309,566,000 652,220,000 249,683,000 57,879,000        61,731,000 -100,698,000 34,591,000 103,290,000 14,009,000     250,057,000 -64,556,000        -142,057,000 24,109,000 146,850,000                                        
          cash settlements on derivative financial instruments
        -49,295,000 62,033,000 31,466,000 4,573,000 69,697,000 112,265,000 128,057,000 122,373,000 65,018,000 77,442,000 76,586,000 34,468,000 -184,632,000 -464,677,000 -407,710,000 -133,135,000 -280,848,000 -159,457,000 -40,313,000 -39,395,000 17,386,000 85,814,000 119,500,000 99,929,000 50,035,000 80,008,000 33,507,000 24,834,000 -91,250,000 -34,922,000 -14,275,000 8,925,000 -2,945,000 16,856,000 3,387,000 -4,181,000  53,113,000 98,078,000 109,466,000                                                
          divestiture contract obligation, including accretion
        6,950,000 8,085,000 8,502,000 8,897,000 9,155,000 7,604,000 10,062,000 10,267,000  10,606,000                                                                              
          amortization of debt issuance costs and other
        1,099,000                                                                                       
          deferred and stock-based compensation
        15,331,000 10,248,000 11,047,000 15,083,000 16,267,000 8,260,000 11,122,000 18,215,000 7,683,000 18,763,000 20,722,000 20,681,000 12,562,000 17,242,000 -7,958,000 86,113,000 -9,590,000 44,833,000 45,059,000 30,054,000 10,172,000 15,267,000 22,637,000 476,000 10,481,000 683,000 -385,000 14,112,000 -11,495,000 7,085,000 15,640,000 18,527,000 26,769,000 1,985,000 990,000 962,000 1,996,000 971,000 42,590,000 29,128,000 -9,732,000 -30,471,000 10,574,000 9,218,000 -19,781,000 -32,426,000 35,319,000 12,593,000 45,211,000 10,862,000 1,563,000 32,232,000 23,833,000 2,508,000 20,220,000 18,598,000 7,511,000 40,650,000 24,651,000 4,447,000 -1,411,000 7,277,000 14,558,000 26,050,000 11,630,000 21,164,000 -6,792,000 -30,188,000 16,390,000 27,211,000                  
          gain on the sale of assets
        -6,000 6,000 -102,000 -62,000 -89,000 -69,000 -66,000 -87,000 -101,000 -109,000 -106,000 -138,000 139,000 -135,000    -78,000 -2,506,000 1,860,000     -407,000 36,341,000 -5,867,000 189,000 10,815,000 30,000 -156,000 -23,000     -470,000 2,597,000   408,909,000 681,000   -3,760,000 -167,000                                          
          loss on early extinguishment of debt
        12,344,000        1,000    22,000 69,210,000                                                                        
          changes in working capital:
                                                                                               
          accounts receivable
        82,177,000 -5,001,000 96,786,000 -28,722,000 -121,116,000 24,617,000 -30,541,000 107,454,000 -65,334,000 -29,566,000 92,768,000 225,213,000 129,358,000 -25,446,000 -165,872,000 58,674,000 -134,334,000 -67,066,000 -15,992,000 -33,146,000 -66,804,000 -12,047,000 19,045,000 84,345,000 -27,318,000 40,086,000 67,422,000 134,006,000 -92,668,000 -35,288,000 -68,338,000 53,913,000 -63,172,000 -26,084,000 -8,920,000 -4,690,000 -52,571,000 -9,970,000 23,203,000 18,752,000 -14,744,000 5,753,000 19,260,000 54,435,000 -18,427,000 11,823,000 42,918,000 -41,643,000 -14,706,000 7,491,000 -39,507,000 -21,090,000 -336,000 11,947,000 -22,533,000 -25,420,000 -5,848,000 1,689,000 -12,216,000 -5,113,000 8,547,000 6,845,000 -37,366,000 -8,080,000 1,057,000 45,396,000 71,169,000 30,189,000 -63,301,000 -31,356,000 -20,975,000 -2,416,000 -19,786,000 -7,393,000 384,000 -9,509,000 7,637,000 34,369,000 -27,579,000 -35,010,000 328,000 17,728,000 -26,139,000 4,697,000 -7,420,000 2,964,000  
          other current assets
        -6,192,000 3,426,000 518,000 -9,028,000 5,485,000 20,596,000 -13,461,000 -8,944,000  -6,522,000 2,337,000 -5,335,000  3,621,000 -17,191,000 -5,908,000  -2,695,000 -1,001,000 122,000  -1,730,000                                                                  
          accounts payable
        83,223,000 -1,142,000 -27,023,000 36,181,000 26,609,000 -21,334,000 -17,906,000 12,188,000 7,234,000 -8,148,000 -65,321,000 -10,822,000 -35,215,000 15,918,000 -15,622,000 51,996,000 4,918,000 13,073,000 -13,178,000 34,418,000 20,134,000 -25,467,000 -46,013,000 18,660,000 -7,729,000 -23,513,000 1,299,000 -30,431,000 2,255,000 -21,144,000 -32,838,000 47,453,000 1,197,000 26,289,000 -5,958,000 24,384,000 14,009,000 -22,074,000 -31,116,000 11,922,000 -13,039,000 -16,650,000 -3,606,000 7,098,000 12,332,000 -33,470,000 10,118,000 9,997,000 15,679,000 -18,853,000 2,580,000 32,996,000 -30,884,000 8,962,000 20,443,000 -13,483,000 -8,524,000 2,302,000 -9,498,000 -1,494,000 -3,593,000 17,452,000 22,311,000 4,932,000 -33,909,000 -38,099,000 7,736,000 -19,457,000 20,927,000 1,457,000 17,043,000 20,081,000 40,427,000 -48,911,000 12,751,000 -12,284,000 9,754,000 -15,270,000 21,937,000 20,701,000 -1,498,000 -13,668,000 24,661,000 3,425,000 8,902,000 -2,242,000  
          accrued liabilities and other
        -79,707,000 -21,074,000 -26,911,000 -59,843,000 3,452,000 -20,619,000 -19,431,000 -82,374,000 -16,359,000 -37,976,000 -82,111,000 -129,368,000 13,157,000 -14,979,000 19,314,000 -182,141,000 28,912,000 -13,254,000 33,817,000 -78,735,000 33,781,000 -34,676,000 43,434,000 -89,287,000 -304,000 -29,592,000 -26,632,000 -99,275,000 101,572,000 35,168,000 43,070,000 -41,517,000 26,262,000 9,368,000 20,515,000 -43,381,000 -23,049,000 -565,000 1,151,000 -42,300,000 14,657,000 -4,172,000 -6,546,000 -44,409,000 45,823,000 -6,180,000 -27,009,000 -32,742,000 3,762,000 6,762,000 -11,915,000 -4,393,000 18,106,000 16,422,000 33,825,000 -23,849,000 17,774,000 -18,210,000 -10,363,000 20,237,000 -11,555,000 358,000 -17,959,000 17,140,000 5,204,000 -3,921,000 -8,886,000 11,243,000 5,800,000 3,939,000 5,028,000 1,509,000 8,249,000 -4,864,000 -983,000 3,002,000 9,869,000 -13,749,000 135,000 -2,486,000 14,276,000 -8,387,000      
          net cash from operating activities
        619,136,000 247,545,000 336,190,000 330,083,000 217,890,000 245,919,000 148,775,000 331,930,000 226,095,000 150,251,000 126,590,000 474,956,000                                    181,221,000 240,672,000 222,977,000 185,976,000     100,181,000 172,991,000 140,622,000 114,454,000 138,431,000 107,563,000 152,874,000 147,907,000 175,334,000 119,273,000 149,161,000 224,379,000 255,526,000 138,559,000 206,303,000 186,572,000 179,056,000 185,030,000 91,633,000 131,735,000 90,561,000 132,070,000 125,509,000 103,342,000 78,996,000        
          capital expenditures
                                                      
          free cash flows
        619,136,000 247,545,000 336,190,000 330,083,000 217,890,000 245,919,000 148,775,000 331,930,000 226,095,000 150,251,000 126,590,000 474,956,000                                    181,221,000 240,672,000 222,977,000 185,976,000     100,181,000 172,991,000 140,622,000 114,454,000 138,431,000 107,563,000 152,874,000 147,907,000 175,334,000 119,273,000 149,161,000 224,379,000 255,526,000 138,559,000 206,303,000 186,572,000 179,056,000 185,030,000 91,633,000 131,735,000 90,561,000 132,070,000 125,509,000 103,342,000 78,996,000        
          investing activities:
                                                                                               
          additions to natural gas, ngls and oil properties
        -158,310,000                                                                                       
          additions to field service assets and other
        -1,793,000                                                                                       
          acreage purchases
        -7,633,000 -15,056,000 -11,524,000 -24,919,000 -11,298,000 -9,790,000 -13,283,000 -21,714,000 -6,988,000 -7,850,000 -6,830,000 -12,742,000 -6,917,000 -4,523,000 -6,846,000 -12,599,000 -3,660,000 -4,385,000 -4,068,000 -11,849,000 -8,262,000 -4,068,000 -3,675,000 -10,811,000 -20,191,000 -7,875,000 -8,274,000 -23,646,000 -10,142,000 -12,561,000 -12,545,000 -25,355,000 -11,246,000 -8,980,000 -9,262,000 -28,725,000 -14,279,000 -5,649,000 -4,057,000 -19,497,000 -13,667,000 -9,763,000 -21,324,000 -30,126,000 -66,428,000 -35,072,000 -59,781,000 -50,690,000 -61,958,000 -42,738,000  -27,097,000 -73,676,000 -74,268,000        -19,849,000  -11,403,000                        
          proceeds from disposal of assets
        31,000 12,000 99,000 50,000 40,000 11,000 231,000 31,000 49,000 52,000 111,000 660,000 55,000 83,000 31,000 349,000 66,000 42,000 187,000 8,000 44,000 245,012,000 12,000 1,059,000 410,000 750,161,000 34,034,000 332,000 300,210,000 23,973,000 326,000 40,000 44,885,000 295,000 1,235,000 26,053,000 1,921,000 1,031,000 77,724,000 113,079,000 876,076,000 524,000 3,641,000 10,660,000 33,382,000 986,000 145,846,000 294,000 3,774,000 15,680,000 136,137,000 16,462,000 5,768,000 9,852,000 -12,287,000 42,804,000 8,212,000 15,197,000 311,000 8,822,000 16,984,000 301,648,000  108,000 181,837,000 285,000      2,000                
          purchases of marketable securities held by the deferred compensation plan
        -1,365,000 -589,000 -13,390,000 -4,480,000 -5,117,000 -568,000 -22,557,000 -13,556,000 -5,623,000 -199,000 -37,477,000 -1,869,000 -4,329,000 -1,863,000 -28,503,000 -8,996,000 -6,410,000 -2,528,000 -18,696,000 -3,172,000 -2,221,000 -3,346,000 -3,861,000 -7,648,000 -2,298,000 -1,571,000 -10,911,000 -4,259,000 -11,224,000 -7,682,000 -14,118,000 -13,153,000 -62,757,000 -5,745,000 -7,277,000 -12,388,000 -3,559,000 -11,345,000 -13,453,000 -8,662,000 -5,282,000 -3,697,000 -15,233,000 -4,664,000 -7,845,000 -11,802,000 -3,004,000 -8,247,000 -12,407,000 -3,516,000                  -3,452,000 -2,952,000 -2,896,000                  
          proceeds from the sales of marketable securities held by the deferred compensation plan
        652,000 80,000 22,672,000 257,000 4,007,000 286,000 26,705,000 15,234,000  42,463,000 1,200,000  708,000 33,448,000 6,375,000  2,334,000        3,118,000 12,022,000 6,204,000  11,852,000 13,531,000 11,928,000  7,399,000 11,125,000 10,231,000  14,903,000 15,164,000 7,833,000  3,176,000 20,070,000 4,922,000  11,863,000 4,033,000 9,310,000  3,033,000 36,599,000 17,895,000 1,407,000 2,183,000 11,959,000 1,831,000 3,063,000 3,557,000 4,629,000 1,647,000 10,683,000 2,613,000 2,924,000 1,174,000 731,000 1,250,000                      
          net cash from investing activities
        -168,418,000 -169,914,000 -149,830,000 -162,495,000 -151,228,000 -156,473,000 -162,243,000 -153,889,000 -157,816,000 -152,230,000 -153,366,000 -138,293,000 -115,148,000 -146,330,000 -123,342,000 -105,012,000  -110,391,000 -106,125,000 -112,400,000   -124,494,000 -139,865,000   -163,954,000 -211,959,000 111,114,000 -180,907,000 -290,221,000 -335,420,000 -347,264,000 -310,175,000 -288,497,000 -193,121,000 -142,098,000 -92,455,000 -59,389,000 -14,893,000 727,222,000 -241,125,000 -327,209,000 -377,660,000 -373,518,000 -359,329,000 -236,372,000 -276,237,000 -312,303,000 -343,041,000 -218,864,000   -443,859,000 -439,527,000 -353,591,000   -273,043,000 -296,277,000 -337,616,000 108,078,000 -88,706,000 -170,109,000 35,107,000 -250,099,000 -343,998,000 -608,981,000 -293,570,000 -485,228,000 -222,288,000 -260,611,000 -525,467,000 -12,206,000 -197,057,000 -183,913,000 -423,241,000 -107,448,000 -87,461,000 -96,273,000        
          financing activities:
                                                                                               
          borrowings on credit facility
        1,182,000,000 438,000,000                                                                 541,000,000 255,000,000 423,000,000  148,000,000 428,500,000 141,500,000  142,600,000 420,300,000 87,600,000          
          repayments on credit facility
        -966,000,000 -434,000,000                                                                 -197,000,000 -641,500,000 -134,000,000  -328,500,000 -519,500,000 -56,000,000  -155,500,000 -268,800,000 -110,700,000          
          repayment of senior notes
        -608,250,000 -606,542,000 -2,157,000 -9,426,000 -3,777,000 -51,094,000 -14,975,000                         -500,000                                                    
          dividends paid
        -23,835,000 -21,353,000 -21,471,000 -21,613,000 -19,336,000 -19,253,000 -19,467,000 -19,407,000 -19,292,000 -19,309,000 -19,306,000 -19,334,000 -19,112,000            -4,993,000 -5,028,000 -5,026,000 -5,023,000 -4,990,000 -4,990,000 -4,989,000 -4,971,000 -4,963,000 -4,962,000 -4,963,000 -4,951,000 -5,028,000 -4,858,000 -3,401,000 -3,395,000 -6,775,000 -6,774,000 -6,775,000 -6,759,000 -6,748,000 -6,748,000 -6,564,000 -6,550,000 -6,536,000 -6,536,000 -6,506,000 -6,503,000 -6,499,000 -6,473,000 -6,451,000 -6,445,000 -6,440,000 -6,420,000 -6,404,000 -6,402,000 -6,395,000 -6,373,000 -6,326,000 -6,302,000 -6,284,000 -6,257,000 -6,221,000 -6,208,000 -6,193,000 -6,003,000  -4,463,000 -4,452,000 -4,183,000              
          treasury stock purchases
        -27,124,000 -56,255,000 -52,881,000 -67,477,000 -21,124,000 -33,937,000   -9,379,000 -1,829,000 -7,834,000 -90,808,000 -175,997,000 -116,695,000 -16,199,000     -444,000 -22,548,000                                                              
          taxes paid for shares withheld
        -20,456,000 -121,000 -123,000 -21,238,000 -16,000 -32,000 -955,000 -24,214,000 -6,000 -325,000 -93,000 -39,057,000 -1,000 -496,000 -24,995,000 -32,000 -18,000 -152,000 -9,097,000 -483,000 -489,000 -798,000 -1,554,000 -13,000 -28,000 -182,000 -3,161,000 -40,000 -122,000 -362,000 -2,659,000 -12,000 -894,000 -198,000 -5,879,000                                                    
          change in cash overdrafts
        12,025,000 -3,861,000 16,821,000 -18,758,000 7,986,000 -6,054,000 -13,019,000 10,003,000 -5,307,000 1,041,000 9,407,000 -29,064,000 23,274,000 -18,018,000 12,355,000 -8,540,000 14,978,000 9,187,000 -6,026,000 -1,646,000 8,973,000 -9,454,000 2,590,000 -1,933,000 -1,003,000 -15,982,000 -15,980,000 7,218,000 90,000 1,665,000 -8,240,000 922,000 11,592,000 -5,251,000 -964,000 11,803,000 17,961,000 7,236,000 -436,000 -6,368,000 3,034,000 -4,202,000 -20,580,000 -15,341,000 15,676,000 -16,984,000 5,801,000 -1,122,000 906,000 5,859,000 14,624,000 -19,096,000 -9,623,000 12,969,000 -11,713,000 18,504,000 2,714,000 -60,979,000 56,491,000 20,994,000 -8,223,000 -5,162,000 15,320,000                         
          proceeds from the sales of common stock held by the deferred compensation plan
        965,000 8,396,000 3,739,000 2,294,000 5,000 16,143,000 1,689,000  21,298,000 33,973,000 5,052,000  820,000 16,995,000 3,658,000 357,000 590,000 4,491,000 441,000 6,000 548,000 129,000 13,000 154,000 339,000 174,000 1,234,000 2,864,000 5,014,000 635,000 334,000 1,131,000 3,017,000 2,717,000 72,000 8,899,000 1,414,000 360,000 754,000 5,291,000 1,893,000 257,000 904,000 6,217,000 8,586,000 4,354,000 2,836,000 6,245,000 11,555,000 7,665,000 1,168,000 1,021,000 5,081,000 3,505,000 3,292,000 438,000 248,000 3,667,000 893,000 1,152,000 2,366,000 2,970,000 713,000                      
          net cash from financing activities
        -450,675,000 -77,590,000 -530,800,000 -127,504,000 -39,622,000 -63,048,000 -78,591,000 -46,904,000 -19,106,000 2,705,000 -38,782,000 -109,237,000 -654,444,000 -217,851,000   -14,752,000    3,623,000 -149,422,000      -48,792,000    -35,073,000    -32,510,000            94,914,000 71,724,000 120,035,000 32,989,000       130,040,000 159,359,000 -6,934,000 110,397,000 24,795,000    100,941,000 120,107,000 353,647,000 154,994,000 274,997,000 39,547,000 65,148,000 189,176,000 86,046,000 65,453,000 88,815,000 296,610,000 -21,462,000 -12,519,000 13,724,000        
          increase in cash and cash equivalents
        43,000 41,000 -344,440,000 40,084,000 27,040,000 26,398,000 -92,059,000 131,137,000 49,173,000 726,000 -65,558,000 227,426,000 -156,937,000 156,788,000   213,944,000 14,000          -57,000 188,000 -58,000 -112,000 79,000 -81,000 9,000 -25,000 231,000 -228,000 160,000 -147,000 58,000 -19,000 -31,000 2,000 71,000 -20,000 176,000   93,000 -29,000 101,000 -7,000 -122,740,000 122,806,000                                 -1,004,000 
          cash and cash equivalents at beginning of period
        204,000 304,490,000 211,974,000  207,000  214,422,000  458,000  546,000  545,000  448,000  314,000  471,000  448,000  348,000   92,000  2,848,000                              
          cash and cash equivalents at end of period
        247,000 41,000 -344,440,000 344,574,000 27,040,000 26,398,000 -92,059,000 343,111,000  726,000 -65,558,000 227,633,000  156,788,000 -112,575,000 112,931,000  14,000 15,000 449,000  -51,000 40,000 528,000  -153,000 19,000 488,000  -58,000 -112,000 527,000  9,000 -25,000 545,000  160,000 -147,000 529,000  -31,000 2,000 519,000  176,000 46,000 246,000  -29,000  -7,000 -122,740,000 122,898,000  -236,955,000 287,158,000 1,681,000                              
          derivative fair value income
             -47,124,000 -16,808,000 -46,598,000              124,690,000              -165,557,000    -86,908,000                                                
          amortization of deferred financing costs and other
         852,000 962,000 1,182,000 1,174,000 927,000 1,193,000 1,232,000 1,144,000 997,000 1,284,000 1,310,000 1,438,000 1,401,000 3,155,000 1,965,000 2,094,000 1,994,000 2,178,000 2,081,000 1,896,000 1,625,000 1,741,000 1,657,000 1,593,000 1,619,000 1,436,000 1,807,000  1,787,000 1,064,000 1,312,000                2,873,000      1,848,000    -78,000 1,181,000 6,524,000 1,200,000 1,167,000 5,013,000 1,409,000 1,283,000 1,050,000 763,000 649,000 859,000 629,000                  
          gain on early extinguishment of debt
         -3,000  -11,000 -179,000 -64,000           35,000 25,000 7,821,000 -8,991,000 -12,923,000                                                                
          additions to natural gas properties
         -153,425,000 -147,309,000 -132,681,000 -138,162,000 -146,166,000 -153,217,000 -132,881,000  -143,999,000 -151,620,000 -125,468,000  -140,581,000 -121,128,000 -90,104,000  -105,786,000 -106,690,000 -99,233,000  -67,776,000                                                                  
          additions to field service assets
         -936,000 -378,000 -722,000 -698,000 -246,000 -122,000 -1,003,000 -380,000 -234,000 -13,000 -74,000 -147,000 -154,000 -344,000 -37,000 -511,000 -68,000 -165,000 -487,000 -380,000 -642,000 -955,000 -896,000 -359,000 -106,000 -121,000 -576,000 -247,000 633,000 -1,624,000 -239,000 -1,023,000 -1,721,000 -1,401,000 -1,565,000 -1,510,000 -238,000 -673,000 -631,000 -1,563,000 -1,304,000 -902,000 -672,000 -2,371,000 -4,373,000 -2,035,000 -3,084,000 -1,599,000 -2,293,000 -1,706,000 -1,530,000 96,000 -1,622,000 -5,693,000 -3,084,000 -1,808,000 -1,022,000 -2,660,000 -2,014,000 -3,915,000 -6,355,000 -11,139,000 -7,110,000 -8,743,000 -6,106,000 -15,425,000 -756,000 -13,082,000 -6,813,000 -5,726,000 -6,419,000 -6,588,000 -7,311,000 -4,416,000 -3,677,000 -2,994,000 -3,362,000 -4,127,000 -3,571,000 -1,945,000 -1,667,000      
          allowance for bad debt
                            400,000         500,000 750,000   350,000 250,000 200,000 1,700,000 350,000 250,000                                        
          issuance of senior notes
                    500,000,000 600,000,000 300,000,000 550,000,000                                                              
          debt issuance costs
                    1,000 -379,000 -8,981,000 -6,817,000 -55,000 -208,000 -32,000 -8,559,000 -873,000 -4,375,000 178,000 -8,538,000     37,000   -156,000      -124,000 -227,000 -12,229,000 -1,700,000     -124,000 1,000 -151,000 -1,213,000 -11,242,000 -350,000 -9,297,000 -12,356,000 -165,000    -238,000   -3,000,000 -200,000 -5,508,000 -2,000 -959,000 -2,521,000 -35,000 -171,000 -1,400,000 -1,898,000 -3,212,000 -450,000 -1,000 -10,000 -1,008,000 -3,100,000 -226,000 -406,000    
          adjustments to reconcile net income to net cash from
                                                                                               
          depletion, depreciation and amortization and impairment of proved properties
                   86,562,000 90,847,000 90,471,000 86,498,000 85,604,000 92,427,000 93,116,000 90,629,000 88,383,000   104,626,000 179,986,000                                                                
          divestiture contract obligation
                            13,245,000                                                                   
          prepaid and other
                                                                                               
          additions to natural gas and oil properties
                               -129,962,000 -136,922,000 -169,637,000 -190,704,000 -190,014,000 -179,362,000 -197,122,000 -275,791,000 -308,641,000 -377,546,000 -301,423,000 -282,917,000 -186,727,000 -126,806,000 -98,337,000 -134,094,000 -107,015,000 -129,417,000 -230,061,000 -313,386,000 -357,780,000 -333,134,000 -320,931,000 -320,023,000 -226,331,000 -251,439,000 -315,121,000 -347,461,000 -369,593,000 -404,631,000 -376,943,000                                  
          proceeds from the sales of marketable securities held by the deferred
                                                                                               
          compensation plan
                           2,333,000 1,199,000 4,485,000 8,096,000 8,393,000                                                                
          borrowings on credit facilities
                   185,000,000 159,000,000 165,000,000 366,000,000 282,000,000 184,000,000 367,000,000 405,000,000 478,000,000 400,000,000 631,000,000 502,000,000 543,000,000 581,000,000 579,000,000 585,000,000 566,000,000 468,000,000 488,000,000 586,000,000 528,000,000 555,000,000 540,000,000 498,000,000 448,000,000 387,000,000 1,240,000,000 289,000,000 358,000,000                                       81,400,000 66,900,000 64,200,000 86,500,000 280,778,000 37,600,000 278,700,000 37,500,000  
          repayments on credit facilities
                   -204,000,000 -140,000,000 -166,000,000 -365,000,000 -282,000,000 -214,000,000 -458,000,000 -408,000,000 -1,056,000,000 -404,000,000 -564,000,000 -420,000,000 -463,000,000 -432,000,000 -1,146,000,000 -585,000,000 -614,000,000 -791,000,000 -536,000,000 -454,000,000 -557,000,000 -430,000,000 -408,000,000 -390,000,000 -484,000,000 -442,000,000 -306,000,000 -317,000,000 -422,000,000                                       -92,000,000 -52,800,000 -61,400,000 -247,500,000 -163,778,000 -50,700,000 -267,300,000 -47,100,000  
          repayment of senior or senior subordinated notes
                    -587,555,000 -3,750,000 -218,117,000 -850,000,000   -502,652,000 -37,883,000 -580,099,000                                                                
          proceeds from the sales of common stock held by the deferred
                                                                                               
          cash and cash equivalents at beginning of year
                                                                                               
          cash and cash equivalents at end of year
                                                                                               
          adjustments to reconcile net income to net cash provided from operating activities:
                                                                                               
          adjustments to reconcile net loss to net cash from operating activities:
                                                                                               
          divestiture contract obligation, including accretion, net of gain
                   12,215,000  10,930,000 35,907,000 10,954,000                                                                        
          adjustments to reconcile net income to net cash provided from
                                                                                               
          net cash provided from operating activities
                    612,655,000 520,969,000 324,706,000 406,414,000 317,659,000   109,252,000 89,706,000   124,506,000 132,412,000 103,915,000 184,822,000 260,694,000 215,743,000 229,432,000 174,943,000 370,572,000 215,722,000 189,204,000 185,466,000 225,862,000 185,031,000 32,433,000 82,180,000 87,424,000 168,140,000 145,418,000 159,504,000 210,638,000 299,197,000 213,415,000       126,969,000 155,977,000                                  
          deferred income tax (benefit) expense
                      94,331,000 -120,832,000                        -44,038,000 -164,316,000 -134,781,000                                              
          (gain) loss on the sale of assets
                       -331,000     1,652,000   -122,099,000         -207,000 -102,000 -807,000 -22,600,000                                                    
          net cash (used in) provided from financing activities
                       -402,893,000         26,479,000 -678,158,000           -43,161,000 60,182,000 -22,938,000 -72,473,000               169,892,000 16,455,000       -59,293,000 -6,518,000                        
          decrease in cash and cash equivalents
                       -101,491,000    -9,000    -18,000  -153,000                      -102,000                                        
          deferred income tax benefit
                        17,750,000    72,918,000                 -13,705,000                -27,843,000                                  
          exploration dry hole costs
                                     2,000 2,000  9,005,000        -19,000 3,000 103,000  1,000 1,795,000 4,063,000 9,000 15,000 108,000 709,000 1,373,000 2,509,000 -4,000 10,000 2,039,000    1,817,000 211,000 8,000 123,000 4,034,000 81,000 4,288,000 4,968,000 6,077,000 174,000 4,490,000 4,408,000 5,789,000 5,568,000 2,028,000 2,718,000 4,541,000 691,000 1,330,000 483,000      
          net cash (used in) provided from investing activities
                            -93,388,000                                     -271,829,000                              
          net loss
                                                                                               
          divestiture contract obligation accretion, net of gain
                                                                                               
          divestiture contract obligation accretion
                           12,995,000                                                                    
          net cash provided from financing activities
                           3,139,000          -48,583,000            95,676,000 167,707,000 167,093,000 74,301,000 146,090,000        410,688,000                                  
          impairment of goodwill
                                                                                               
          derivative fair value (income) loss
                               -233,175,000 -18,491,000 -74,676,000       -25,024,000 88,426,000       -126,312,000 -202,004,000 34,791,000 -122,839,000                                            
          inventory and other
                               -4,432,000 8,544,000 1,011,000 -272,000 -4,763,000 960,000 -1,618,000 6,090,000 -5,294,000 -1,475,000 -5,220,000 848,000 2,868,000 6,996,000 -11,276,000 5,167,000 5,333,000 -7,795,000 -3,324,000 -2,677,000 -1,072,000 814,000 1,537,000 -1,514,000 -5,358,000 526,000 1,714,000 -1,982,000 -2,570,000 -1,927,000 -897,000 -10,000 -1,872,000 -827,000 3,574,000 2,074,000 -2,745,000 1,038,000 -700,000 -656,000 1,347,000 -432,000 -1,722,000 -3,983,000 24,576,000 -31,117,000 1,278,000 632,000 -1,932,000 2,520,000 -2,260,000 754,000 -49,000 -232,000 -1,630,000 3,427,000 1,195,000 -7,557,000 -517,000 3,255,000 -4,296,000 1,405,000 -6,444,000  
          depletion, depreciation and amortization and impairment of proved properties and other assets
                                                                                               
          net cash provided from (used in) financing activities
                               15,341,000         131,461,000 120,980,000                                                      
          exploration dry hole and impairment costs
                                                                                               
          net cash provided from (used in) investing activities
                                -158,699,000                                                               
          depletion, depreciation and amortization and impairment
                                 137,751,000 141,505,000 138,718,000  164,266,000 176,328,000 169,578,000 162,918,000 223,428,000 152,504,000 149,821,000 149,662,000 131,489,000 122,390,000 163,601,000 215,918,000 656,226,000   149,572,000 142,450,000   126,958,000 137,355,000                                      
          allowance for doubtful accounts
                                                                                               
          gain on extinguishment of debt
                                                                                               
          amortization of deferred financing costs, loss on extinguishment of debt and other
                                          1,247,000 1,310,000 1,787,000 1,946,000 1,730,000 1,707,000 1,811,000 24,482,000 1,732,000 1,358,000 -6,736,000 1,618,000   4,131,000 3,073,000 17,195,000 2,077,000   1,705,000 3,862,000                                
          mrd merger, net of cash acquired
                                                                                               
          repayment of memorial credit facility
                                                                                              
          allowance for bad debts
                                     250,000                         500,000 850,000 284,000 -688,000                 47,000   225,000 225,000 225,000 240,000 236,000 757,000 529,000  
          other
                                                                                              
          debt issuance costs and other
                                                                                               
          income from equity method investments, net of distributions
                                                            2,042,000 251,000                                  
          cash settlements on derivative financial instruments that do not qualify for hedge accounting
                                                171,477,000 137,929,000 125,226,000 97,490,000 71,225,000 16,903,000 -26,178,000 -104,584,000                                        
          issuance of common stock
                                                        -1,000 808,000 1,266,000 34,000 31,000 51,000 503,000 -1,000 119,000 348,000 5,437,000 4,369,000 2,366,000 776,000 5,226,000 2,540,000 570,000 285,282,000 2,791,000 3,476,000 3,190,000 284,663,000 4,900,000 3,721,000 6,883,000 950,000 4,711,000 706,000 1,361,000 110,402,000 2,001,000 103,798,000 563,000 143,908,000 2,191,000  
          memorial merger, net of cash acquired
                                                                                               
          repayment of subordinated notes
                                                          1,000 -366,000                               
          loss on the sale of assets
                                               1,643,000    175,000    353,000  -6,008,000  -949,000                                    
          gain from equity method investments, net of distributions
                                                    -1,000                                          
          issuance of senior or senior subordinated notes
                                                                                               
          repayment of senior subordinated notes
                                                                                               
          borrowing on credit facilities
                                                 931,000,000 467,000,000 542,000,000  507,000,000 763,000,000 412,000,000  417,000,000 634,000,000 442,000,000 357,000,000 340,000,000 397,000,000 118,000,000 372,826,000 271,000,000 413,000,000 223,000,000 148,000,000 125,000,000 131,000,000 201,000,000 250,000,000                      
          repayment on credit facilities
                                                 -308,000,000 -1,015,000,000 -353,000,000  -338,000,000 -877,000,000 -318,000,000  -299,000,000 -356,000,000 -216,000,000 -122,000,000 -527,000,000 -210,000,000 -598,000,000 -166,826,000 -162,000,000 -723,000,000 -102,000,000 -118,000,000 -199,000,000 -136,000,000 -605,000,000 -136,000,000                      
          issuance of common stock, net of offering expenses
                                                     -82,000                                          
          equity method investments and other
                                                                                               
          equity method investments
                                                    -1,408,000 2,511,000 1,914,000                                      
          issuance of subordinated notes
                                                        600,000,000             99,500,000   150,000,000      
          loss from equity method investments, net of distributions
                                                       2,732,000 -1,799,000 378,000 3,418,000     5,640,000 4,521,000 14,738,000                              
          gain from discontinued operations
                                                                                979,000 -64,768,000              
          net cash from continuing operations
                                                          185,976,000     116,273,000 158,070,000 118,741,000         224,379,000 255,526,000 138,559,000 206,303,000 186,572,000 179,056,000 182,412,000 84,062,000 125,241,000 84,795,000            
          net cash from discontinued operations
                                                               -16,092,000 14,921,000 21,881,000             2,618,000 7,571,000 6,494,000             
          net cash from investing activities from continuing operations
                                                          -218,864,000 -389,988,000 -475,847,000 -443,859,000 -435,356,000 -363,338,000                                
          mark-to-market on natural gas, ngls and oil derivatives not designated as hedges
                                                         34,219,000                                      
          unrealized derivative loss
                                                         -815,000 -1,840,000       -568,000 13,000 -2,389,000 -260,000 249,000 1,213,000 386,000 -356,000 453,000                      
          loss from discontinued operations
                                                               -1,569,000 -5,517,000 -8,398,000                 25,393,000             
          depletion, depreciation and amortization and proved property impairment
                                                                                               
          mark-to-market on natural gas and oil derivatives not designated as hedges loss
                                                                                               
          acreage and proved property purchases
                                                              -75,382,000 -78,048,000 -48,754,000 -24,316,000 -46,772,000 -62,539,000                            
          investment in equity method investments and other assets
                                                                                               
          purchase of marketable securities held by the deferred compensation plan
                                                          -26,409,000 -26,125,000 -4,811,000 -3,061,000 -9,762,000 -6,794,000 -2,572,000 -6,260,000 -1,271,000 -1,846,000 -10,863,000 -3,690,000 -538,000 -3,327,000 -1,457,000 -2,148,000                      
          net cash from investing activities from discontinued operations
                                                                                               
          income from discontinued operations
                                                                                               
          mark-to-market on natural gas, ngl and oil derivatives not designated as hedges
                                                                                               
          unrealized derivative gain
                                                            -594,000 948,000  3,971,000                                
          net cash provided from continuing operations
                                                            126,969,000 155,977,000                                  
          net cash provided from discontinued operations
                                                                                               
          net cash provided from investing activities from discontinued operations
                                                                                               
          mark-to-market on natural gas and oil derivatives not designated as hedges
                                                             52,056,000                                  
          gain on the sale of assets and other
                                                             10,426,000                                  
          (gain) income from discontinued operations
                                                                                               
          mark-to-market on natural gas and oil derivatives not designated as hedges (gain) loss
                                                                                               
          unrealized derivative (gain) loss
                                                                                               
          net cash provided from (used in) investing activities from discontinued operations
                                                                                               
          purchases of common stock held by the deferred compensation plan and other treasury stock purchases
                                                                      192,000 -232,000 -15,000                      
          operating activities
                                                                                               
          adjustments to reconcile net cash from operating activities:
                                                                                               
          depletion, depreciation, amortization and proved property impairment
                                                               132,300,000 78,294,000 72,216,000  91,767,000 90,998,000 95,131,000                          
          mark-to-market gain on gas and oil derivatives not designated as hedges
                                                               -58,990,000                                
          loss on sale of assets
                                                               -203,000                                
          investing activities
                                                                                               
          additions to oil and gas properties
                                                               -320,047,000 -284,541,000 -250,766,000  -240,347,000 -183,162,000 -166,244,000 -115,806,000 -149,377,000 -116,776,000 -159,223,000 -235,547,000 -239,090,000 -200,169,000 -207,144,000 -181,352,000 -225,686,000 -192,564,000 -182,796,000 -163,258,000 -144,644,000 -100,787,000 -94,255,000 -79,374,000 -88,194,000 -64,243,000 -45,096,000      
          other assets
                                                                   -45,000  -475,000                        
          investing activities of discontinued operations
                                                               9,747,000 843,366,000 -8,219,000             -1,000 -1,000 -7,373,000 -6,190,000             
          financing activities
                                                                                               
          increase in cash and equivalents
                                                               -236,955,000 287,158,000 -1,167,000  -164,780,000 -119,656,000 285,747,000  -1,293,000 1,396,000 3,000                597,000 17,881,000 -7,070,000 6,658,000 282,000  
          mark-to-market loss on gas and oil derivatives not designated as hedges
                                                                 40,036,000                              
          gain on sale of assets
                                                                 -139,000                              
          loss from equity method investments
                                                                  -348,000 845,000 -636,000 1,621,000 7,151,000 1,022,000 4,607,000 919,000    275,000                  
          gain on sale of assets and other
                                                                     -68,868,000    -4,000                      
          investment in equity method investment and other assets
                                                                         248,000                      
          additions to equity method investment
                                                                                               
          purchases of common stock held by the deferred compensation plan
                                                                           -15,000 -37,000 -36,000                  
          cash and equivalents at beginning of period
                                                                   767,000  753,000  4,018,000  2,382,000  4,750,000         
          cash and equivalents at end of period
                                                                   -164,780,000 -119,656,000 286,514,000  -1,293,000 1,396,000 756,000  192,000 -17,000 90,000  -16,407,000 -151,261,000 167,855,000  -4,537,000 5,439,000 1,349,000  -3,553,000        
          mark-to-market loss on oil and gas derivatives not designated as hedges
                                                                                               
          loss on sale of assets and other
                                                                       717,000    557,000 496,000 -20,468,000  2,128,000 67,000 52,000 -36,000 53,000 505,000 418,000 -669,000 153,000 -4,000 8,000  -881,000 -336,000 193,000  
          mark-to-market gain on oil and gas derivatives not designated as hedges
                                                                     -46,578,000                          
          investment in equity method investment
                                                                                               
          mark-to-market on oil and gas derivatives not designated as hedges
                                                                      32,516,000 53,323,000 61,595,000 -31,525,000                      
          losses on sale of assets and other
                                                                                               
          changes in working capital, net of amounts from business acquisitions:
                                                                                               
          acquisitions, net of cash acquired
                                                                         -84,405,000 -100,991,000 -328,845,000 -71,564,000 -333,358,000 -26,793,000 -27,606,000 -232,940,000 -49,114,000 -23,414,000 -28,219,000            
          proceeds from disposal of assets and discontinued operations
                                                                                               
          investment in equity method investments
                                                                                               
          cash overdrafts
                                                                        -25,486,000 -12,726,000                      
          unrealized derivative (gains) loss
                                                                                               
          other debt repayment/financing
                                                                                               
          cash and equivalents at beginning of year
                                                                                               
          cash and equivalents at end of year
                                                                                               
          adjustments to reconcile to net cash from operating activities:
                                                                                               
          income from equity method investments
                                                                           -151,000                    
          unrealized derivative gains
                                                                               28,000    -184,000 -1,742,000 -1,252,000          
          mark-to-market losses on oil and gas derivatives not designated as hedges
                                                                           -294,317,000 164,006,000 135,221,000                  
          additional investment in other assets
                                                                           -40,156,000                    
          proceeds from disposal of assets and other
                                                                           33,000 3,369,000 63,291,000    234,309,000  25,000 -8,000 149,000          
          proceeds from the sale of marketable securities held by the deferred compensation plan
                                                                           3,285,000 1,628,000 1,692,000                  
          proceeds from the sale of common stock held by the deferred compensation plan
                                                                           829,000 3,357,000 949,000                  
          net decrease in cash and equivalents
                                                                                               
          unrealized derivative losses
                                                                            -558,000 3,249,000    219,000     3,128,000 670,000        
          other financing activities
                                                                            14,593,000 -11,702,000                  
          net increase in cash and equivalents
                                                                            -17,000 -3,928,000   -151,261,000 165,473,000   5,439,000 -3,401,000          
          investment in other assets
                                                                                 79,000              
          losses (gain) on sale of assets and other
                                                                                               
          dividends paid – common stock
                                                                                  -4,168,000 -2,770,000 -2,628,000 -2,623,000    -1,630,000      
          – preferred stock
                                                                                         -2,213,000      
          other debt repayments/financing
                                                                                               
          losses from discontinued operations
                                                                                               
          losses from equity method investments
                                                                                               
          amortization of deferred issuance costs and other
                                                                               591,000 550,000 526,000  409,000            
          non-cash compensation
                                                                               14,081,000 16,252,000 16,437,000              
          investment in equity method affiliates and other
                                                                                               
          purchases of marketable securities held by deferred compensation plan
                                                                                               
          proceeds from sales of marketable securities held by deferred compensation plan
                                                                                               
          proceeds from disposal of discontinued operations
                                                                               1,000                
          proceeds from sales of common stock held by deferred compensation plan and other
                                                                                               
          purchases of common stock held by deferred compensation plan and other treasury stock purchases
                                                                                               
          gain from equity method investment
                                                                                -385,000 -411,000              
          mark-to-market losses on oil and gas derivatives
                                                                                -20,322,000 66,111,000              
          investment in equity method affiliate and other
                                                                                               
          mark-to-market on oil and gas derivatives gains
                                                                                               
          amortization of deferred financing costs and discount
                                                                                               
          investment in equity method affiliate and other assets
                                                                                  -1,000 -92,000            
          proceeds from disposal of assets and other repayments
                                                                                               
          other debt repayments
                                                                                      -13,000 -3,000 -8,904,000    
          increase in cash and equivalents operating activities:
                                                                                               
          loss from equity method investment
                                                                                               
          mark-to-market on oil and gas derivatives
                                                                                   -54,950,000 -17,503,000 -11,281,000          
          deferred compensation adjustments
                                                                                   2,085,000 3,698,000 8,056,000 6,978,000 20,453,000 5,491,000 4,469,000 6,610,000 5,049,000 4,450,000 4,558,000  
          changes in working capital, net of amounts from business acquisition:
                                                                                               
          income from equity method investment
                                                                                               
          cumulative effect of changes in accounting principle
                                                                                     279,000          
          amortization of deferred issuance costs and discount
                                                                                     406,000 401,000 408,000 416,000 437,000 315,000 284,000 268,000 204,000  
          acquisitions
                                                                                     -9,980,000 -8,259,000 -8,345,000 -134,385,000 -2,611,000 -227,056,000 -4,912,000 -250,309,000 -3,287,000  
          cumulative effect of changes in accounting principles
                                                                                               
          mark-to-market on oil and gas derivatives losses
                                                                                               
          debt conversion and extinguishment expense
                                                                                               
          loss on retirement of securities
                                                                                             
          ipf net repayments
                                                                                      4,137,000 708,000 654,000 509,000      
          disposal of assets
                                                                                      162,000 3,129,000 76,000 65,000      
          dividends paid — common stock
                                                                                               
          — preferred stock
                                                                                               
          cash flows from operations
                                                                                               
          adjustments to reconcile net income to net cash from operations:
                                                                                               
          unrealized hedging losses
                                                                                         -308,000 -1,756,000 499,000 -1,291,000 755,000  
          net cash from operations
                                                                                         65,342,000 70,434,000 61,499,000 49,128,000 32,222,000  
          cash flows from investing
                                                                                               
          net cash from investing
                                                                                         -48,800,000 -270,997,000 -45,290,000 -288,819,000 -23,229,000  
          cash flows from financing
                                                                                               
          net cash from financing
                                                                                         -15,945,000 218,444,000 -23,279,000 246,349,000 -8,711,000  
          cash and equivalents, beginning of period
                                                                                         18,382,000  631,000  
          cash and equivalents, end of period
                                                                                         18,979,000  -7,070,000 6,658,000 913,000  
          cash flow from operations
                                                                                               
          cumulative effect of change in accounting principle
                                                                                               
          write-down of marketable securities
                                                                                               
          loss on disposal of assets and other
                                                                                               
          changes in working capital
                                                                                               
          cash flow from investing
                                                                                               
          cash flow from financing
                                                                                               
          cash and equivalents, beginning of year
                                                                                               
          cash and equivalents, end of year
                                                                                               
          exploration expense
                                                                                           695,000 2,210,000 1,219,000  
          accrued liabilities
                                                                                           5,152,000 4,681,000 -2,269,000  
          oil and gas properties
                                                                                           -44,152,000 -39,361,000 -22,841,000  
          field service assets
                                                                                           -1,451,000 -569,000 -445,000  
          ipf
                                                                                           2,836,000 1,311,000 1,021,000  
          asset sales
                                                                                           2,389,000 109,000 2,323,000  
          payment of dividends
                                                                                           -1,432,000 -1,307,000 -1,302,000  
          ipf investments
                                                                                               
          ipf repayments