7Baggers

Callon Petroleum Company
(NYSE:CPE) 

CPE stock logo

Callon Petroleum Company, an independent oil and natural gas company, focuses on the acquisition, exploration, and development of oil and natural gas properties in Permian Basin in West Texas. As of December 31, 2020, its estimated net proved reserves totaled approximately 475.9 million barrel of oi...

Founded: 1950
Full Time Employees: 475
Sector: Energy
Industry: Oil & Gas E&P

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Quarterly
Annual
    Unit: USD2023-12-31 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 
                                                                                    
      operating revenues:
                                                                                    
      oil
    427,030,000 438,665,000 421,775,000 409,556,000 513,734,000 575,852,000 619,812,000 553,249,000 506,445,000 409,293,000 333,442,000 267,045,000 222,733,000 231,654,000 130,513,000 265,767,000                                25,749,000                                 
      natural gas
    19,414,000 25,045,000 14,423,000 23,586,000 42,774,000 81,018,000 64,913,000 43,976,000 56,674,000 36,519,000 24,080,000 24,220,000 18,561,000 15,034,000 12,242,000 6,029,000                                3,545,000                                 
      natural gas liquids
    43,919,000 46,489,000 40,629,000 43,370,000 49,776,000 67,548,000 75,530,000 67,618,000 69,782,000 58,097,000 36,625,000 29,357,000 25,668,000 23,025,000 14,479,000 18,123,000                                                                 
      sales of purchased oil and gas
    110,994,000 109,099,000 85,456,000 83,534,000 97,965,000 111,459,000 153,365,000 112,375,000 59,287,000 48,653,000 46,252,000 39,259,000 27,850,000 20,313,000                                                                   
      total operating revenues
    601,357,000 619,298,000 562,283,000 560,046,000 704,249,000 835,877,000 913,620,000 777,218,000 692,188,000 552,562,000 440,399,000 359,881,000 294,812,000 290,026,000 157,234,000 289,919,000 196,095,000 155,378,000 167,052,000 153,047,000 161,895,000 161,214,000 137,075,000 127,440,000 118,213,000 84,614,000 82,283,000 81,363,000 69,081,000 55,927,000 45,145,000 30,698,000 33,563,000 34,316,000 39,242,000 30,391,000 38,418,000 39,657,000 40,502,000 33,285,000 26,471,000 30,797,000 22,760,000 22,541,000     31,812,000 33,550,000 36,834,000 25,449,000 24,443,000 20,485,000 21,569,000 23,385,000 70,985,000 21,320,000 25,025,000 24,815,000 15,540,000 32,783,000 48,029,000 44,960,000 43,941,000 37,869,000 43,474,000 45,484,000    45,581,000     23,665,750 25,138,000 37,606,000 31,919,000 
      operating expenses:
                                                                                    
      lease operating
    77,948,000 73,525,000 76,788,000 75,102,000 74,097,000 76,121,000 72,940,000 67,328,000 73,522,000 42,706,000 46,460,000 40,453,000 45,010,000 45,870,000 50,838,000 52,383,000                                                                 
      production and ad valorem taxes
    25,493,000 30,592,000 24,706,000 32,721,000 34,079,000 43,290,000 44,873,000 37,678,000 33,693,000 26,070,000 21,958,000 18,439,000 16,487,000 16,110,000 10,361,000 19,680,000                                                                 
      gathering, transportation and processing
    27,651,000 27,255,000 27,338,000 25,977,000 25,285,000 27,575,000 23,267,000 20,775,000 22,083,000 20,875,000 20,031,000 17,981,000 20,694,000 22,200,000 20,037,000 14,378,000                                                                 
      exploration
    1,441,000 3,588,000 1,882,000 2,232,000                                                                             
      cost of purchased oil and gas
    113,295,000 111,118,000 88,768,000 86,061,000 100,338,000 111,439,000 155,397,000 111,271,000 61,530,000 49,392,000 49,249,000 40,917,000 29,316,000 21,282,000                                                                   
      depreciation, depletion and amortization
    143,750,000 138,598,000 127,348,000 125,965,000 131,296,000 122,833,000 109,409,000 102,979,000 112,551,000 89,890,000 83,128,000 70,987,000 96,037,000 114,201,000 138,930,000 131,463,000 61,952,000 56,002,000 62,921,000 59,767,000 59,502,000 48,257,000 38,733,000 35,417,000 36,542,000 28,525,000 26,213,000 24,433,000 22,051,000 17,303,000 16,293,000 15,722,000 16,854,000 16,704,000 17,587,000 18,104,000 18,089,000 16,115,000 11,982,000 10,538,000 10,364,000 11,907,000 10,654,000 11,042,000 13,703,000 11,965,000 11,844,000 12,189,000 12,960,000 13,013,000 12,952,000 9,776,000 10,558,000 7,392,000 7,042,000 6,813,000 8,717,000 6,861,000 8,452,000 9,413,000 22,294,000 11,513,000 15,218,000 15,029,000 16,165,000 15,931,000 18,819,000 21,847,000 21,683,000 14,973,000 14,791,000 13,836,000 6,554,000 9,313,000 13,671,000 15,408,000 10,995,000 10,147,000 14,476,000 11,835,000 
      impairment of oil and gas properties
      406,898,000                                                                              
      gain on sale of oil and gas properties
    -2,906,000 -20,570,000                                                                               
      general and administrative
    28,439,000 29,339,000 29,768,000 27,798,000 15,341,000 14,022,000 10,909,000 17,121,000 13,116,000 9,503,000 11,065,000 16,799,000 10,614,000 8,224,000 10,024,000 8,325,000 13,626,000 9,388,000 10,564,000 11,753,000 8,514,000 9,721,000 8,289,000 8,769,000 8,173,000 7,259,000 6,430,000 5,206,000 6,562,000 7,891,000 6,302,000 5,562,000 6,180,000 4,302,000 5,763,000 12,102,000 1,402,000 3,261,000 9,639,000 10,807,000 6,424,000 5,826,000 4,545,000 3,739,000 4,512,000 6,441,000 4,374,000 5,031,000 5,149,000 3,464,000 3,799,000 4,224,000 4,421,000 3,371,000 4,411,000 4,304,000 3,145,000 3,000,000 5,391,000 1,819,000 2,519,000 1,451,000 2,943,000 2,652,000 2,778,000 2,606,000 2,271,000 2,221,000 2,033,000 2,908,000 1,924,000 1,726,000 1,992,000 1,598,000 2,801,000 1,694,000 1,919,000 1,509,000 1,537,000 3,793,000 
      merger, integration and transaction
    4,730,000 4,925,000 1,543,000     769,000 11,271,000 3,018,000                                                                       
      total operating expenses
    419,841,000 398,370,000 785,039,000 375,856,000 380,436,000 395,280,000 416,795,000 357,921,000 327,766,000 241,454,000 234,328,000 206,505,000 808,141,000 919,733,000 1,518,910,000 242,059,000 177,715,000 102,834,000 108,543,000 109,822,000 103,562,000 88,403,000 69,675,000 66,454,000 64,185,000 53,188,000 58,540,000 49,114,000 47,913,000 39,276,000 95,674,000 65,465,000 152,105,000 118,226,000 33,011,000 43,280,000 30,435,000 28,095,000 28,422,000 26,640,000 24,007,000 24,452,000 21,803,000 21,643,000 26,025,000 24,839,000 22,601,000 26,578,000 22,703,000 23,026,000 22,633,000 19,660,000 20,422,000 15,830,000 16,106,000 16,345,000 17,568,000 15,521,000 19,294,000 16,309,000 515,978,000 19,143,000 23,983,000 23,891,000 27,214,000 24,779,000 30,646,000 31,779,000 32,385,000 27,063,000 25,441,000 22,976,000 15,105,000 23,030,000 23,972,000 24,878,000 18,768,000 19,771,000 23,063,000 21,688,000 
      income from operations
    181,516,000 220,928,000 -222,756,000 184,190,000 323,813,000 440,597,000 496,825,000 419,297,000 364,422,000 311,108,000 206,071,000 153,376,000 -513,329,000 -629,707,000 -1,361,676,000 47,860,000 18,380,000 52,544,000 58,509,000 43,225,000 58,333,000 72,811,000 67,400,000 60,986,000 54,028,000 31,426,000 23,743,000 32,249,000 21,168,000 16,651,000 -50,529,000 -34,767,000 -118,542,000 -83,910,000 6,231,000 -12,889,000 7,983,000 11,562,000 12,080,000 6,645,000 2,464,000 6,345,000 957,000 898,000 2,651,000 2,563,000 2,759,000 2,716,000 9,109,000 10,524,000 14,201,000 5,789,000 4,021,000 4,655,000 5,463,000 7,040,000 53,417,000 5,799,000 5,731,000 8,506,000 -500,438,000 13,640,000 24,046,000 21,069,000 16,727,000 13,090,000 12,828,000 13,705,000 12,367,000 17,815,000 21,616,000 22,605,000 9,783,000 8,692,000 17,696,000 18,134,000 6,371,000 5,367,000 14,543,000 10,231,000 
      yoy
    -43.94% -49.86% -144.84% -56.07% -11.14% 41.62% 141.09% 173.38% -170.99% -149.41% -115.13% 220.47% -2892.87% -1298.44% -2427.29% 10.72% -68.49% -27.84% -13.19% -29.12% 7.97% 131.69% 183.87% 89.11% 155.23% 88.73% -146.99% -192.76% -117.86% -119.84% -910.93% 169.74% -1584.93% -825.74% -48.42% -293.97% 223.99% 82.22% 1162.28% 639.98% -7.05% 147.56% -65.31% -66.94% -70.90% -75.65% -80.57% -53.08% 126.54% 126.08% 159.95% -17.77% -92.47% -19.73% -4.68% -17.23% -110.67% -57.49% -76.17% -59.63% -3091.80% 4.20% 87.45% 53.73% 35.26% -26.52% -40.66% -39.37% 26.41% 104.96% 22.15% 24.66% 53.56% 61.95% 21.68% 77.25%     
      qoq
    -17.84% -199.18% -220.94% -43.12% -26.51% -11.32% 18.49% 15.06% 17.14% 50.97% 34.36% -129.88% -18.48% -53.76% -2945.12% 160.39% -65.02% -10.20% 35.36% -25.90% -19.88% 8.03% 10.52% 12.88% 71.92% 32.36% -26.38% 52.35% 27.13% -132.95% 45.34% -70.67% 41.27% -1446.65% -148.34% -261.46% -30.95% -4.29% 81.79% 169.68% -61.17% 563.01% 6.57% -66.13% 3.43% -7.10% 1.58% -70.18% -13.45% -25.89% 145.31% 43.97% -13.62% -14.79% -22.40% -86.82% 821.14% 1.19% -32.62% -101.70% -3768.90% -43.28% 14.13% 25.96% 27.78% 2.04% -6.40% 10.82% -30.58% -17.58% -4.38% 131.06% 12.55% -50.88% -2.42% 184.63% 18.71% -63.10% 42.15%  
      other incomes:
                                                                                    
      interest expense
    42,611,000 43,149,000 47,239,000 46,306,000                            5,491,000 5,544,000 5,603,000 5,106,000 4,858,000 4,765,000 2,205,000 1,825,000 977,000 1,625,000 1,417,000 1,537,000 1,515,000 2,012,000 2,135,000 2,384,000 2,577,000 2,805,000 2,722,000 2,698,000 3,492,000 3,387,000 3,133,000 3,198,000 3,594,000 4,534,000 4,919,000 4,854,000 4,782,000 6,996,000 5,014,000 4,755,000 9,940,000 10,424,000 10,148,000 9,172,000 4,585,000 4,177,000 4,027,000 4,128,000 4,148,000 3,776,000 4,050,000 4,265,000 4,569,000 4,299,000 4,511,000 5,436,000 5,891,000 
      (gain) loss on derivative contracts
    -43,116,000 55,804,000 -5,941,000 -25,645,000 76,274,500 -134,850,000   128,038,750 107,169,000 190,463,000 214,523,000 125,739,000 27,038,000 126,965,000 -251,969,000 30,694,000 -21,809,000 -14,036,000  -103,918,000 34,339,000 16,554,000 4,481,000 30,537,000 14,162,000 -10,494,000 -15,303,000 8,952,000 -5,135,000      -2,429,000 -28,990,000 -9,944,000                                           
      (gain) loss on extinguishment of debt
     -1,238,000   3,241,000                                                                            
      other income
    -3,544,000 3,220,000 54,000 -6,414,000 -485,000 2,861,000 1,051,000 -782,000 1,077,000 4,305,000 3,147,000 -4,235,000 3,132,000 -1,044,000 2,157,000 -1,262,000 -198,000 -122,000 -67,000 -81,000 -325,000 -1,657,000 -703,000 -211,000 -41,000 -498,000 -64,000 -708,000 -338,000 -122,000 -96,000 -81,000 -21,000 -92,000 -41,000 -44,000 -312,000 -61,000 -93,000 -49,000 -117,000 -279,000 -44,000 -45,000 145,000 237,000 -157,000 -305,000 -827,000 -347,000 -425,000 172,000 243,000 63,000 -111,000 -361,000 114,000 110,000 61,000 -95,000 -439,000 -89,000 -379,000 -472,000        -330,000 -162,500 -352,000 -96,000 -202,000 -77,750 65,000 -290,000 -86,000 
      total other income
    -4,049,000 100,935,000 41,352,000 14,247,000 46,561,000 -112,521,000 145,807,000 379,076,000 79,908,000 136,790,000 218,244,000 234,704,000 -15,013,000 50,677,000 151,804,000 -232,753,000 36,066,000 -21,192,000 -13,362,000 67,917,000 -103,508,000 33,393,000 16,445,000 4,730,000 30,957,000 14,108,000 -9,969,000 -15,346,000 22,866,000 -4,426,000 19,568,000 6,342,000 -5,372,000 -17,772,000                                               
      income before income taxes
    185,565,000 119,993,000 -264,108,000 169,943,000 277,252,000 553,118,000 351,018,000 40,221,000 284,514,000 174,318,000 -12,173,000 -81,328,000 -498,316,000 -680,384,000 -1,513,480,000 280,613,000 -17,686,000 73,736,000 71,871,000 -24,692,000 161,841,000 39,418,000 50,955,000 56,256,000 23,071,000 17,318,000 33,712,000 47,595,000 -1,698,000 21,077,000 -70,097,000 -41,109,000 -113,170,000 -66,138,000 -7,083,000 -15,274,000 29,466,000 19,362,000 8,868,000 3,204,000 5,415,000 1,521,000 1,445,000 -990,000 234,000 -1,407,000 5,403,000 514,000 8,438,000 8,195,000 15,616,000 4,067,000 482,000 1,459,000 2,037,000 3,807,000 53,727,000 -1,112,000 -1,119,000 2,263,000 -506,995,000 8,715,000 7,799,000 11,601,000 6,661,000 3,329,000 3,758,000 9,445,000 8,705,000 14,142,000 18,158,000 18,787,000 6,355,000 4,994,000 13,527,000 13,767,000 2,118,000 259,000 9,397,000 1,954,000 
      income tax benefit
    -16,590,000 -509,000 156,212,000 50,695,000   -3,009,000 -484,000   478,000 921,000    -64,048,000                   -2,116,000 -5,077,000    1,341,000 2,154,000 456,000  -169,000 715,000 -246,000 1,610,000  -993,000                                
      net income
    168,975,000 119,484,000 -107,896,000 220,638,000 272,467,000 549,603,000 348,009,000 39,737,000 285,351,000 171,902,000 -11,695,000 -80,407,000 -505,071,000 -680,384,000 -1,564,731,000 216,565,000 -23,543,000 55,834,000 55,180,000 -19,543,000 156,194,000 37,931,000 50,474,000 55,761,000 22,824,000 17,081,000 33,390,000 47,129,000 -1,746,000 21,139,000 -70,097,000 -41,109,000 -113,170,000 -111,805,000 -4,967,000 -10,197,000 18,962,000 12,201,000 4,740,000 1,863,000 3,264,000 1,082,000 758,000                  4,660,250 5,856,000 5,153,000 7,632,000 4,542,000 2,268,000 2,581,000 5,803,000 5,860,000 9,630,000 12,303,000 12,767,000 4,307,000 3,683,000 9,311,000 9,475,000 9,123,000 546,000 9,730,000 2,102,000 
      yoy
    -37.98% -78.26% -131.00% 455.25% -4.52% 219.72% -3075.71% -149.42% -156.50% -125.27% -99.25% -137.13% 2045.31% -1318.58% -2935.69% -1208.15% -115.07% 47.20% 9.32% -135.05% 584.34% 122.07% 51.17% 18.32% -1407.22% -19.20% -147.63% -214.64% -98.46% -118.91% 1311.25% 303.15% -696.83% -1016.36% -204.79% -647.34% 480.94% 1027.63% 525.33%                      2.60% 158.20% 99.65% 31.52% -22.49% -76.45% -79.02% -54.55% 36.06% 161.47% 32.13% 34.74% -52.79% 574.54% -4.31% 350.76%     
      qoq
    41.42% -210.74% -148.90% -19.02% -50.42% 57.93% 775.78% -86.07% 66.00% -1569.88% -85.46% -84.08% -25.77% -56.52% -822.52% -1019.87% -142.17% 1.19% -382.35% -112.51% 311.78% -24.85% -9.48% 144.31% 33.62% -48.84% -29.15% -2799.26% -108.26% -130.16% 70.51% -63.68% 1.22% 2150.96% -51.29% -153.78% 55.41% 157.41% 154.43% -42.92% 201.66% 42.74%                   -20.42% 13.64% -32.48% 68.03% 100.26% -12.13% -55.52% -0.97% -39.15% -21.73% -3.63% 196.42% 16.94% -60.44% -1.73% 3.86% 1570.88% -94.39% 362.89%  
      net income per common share:
                                                                                    
      basic
    2,560 1,760 -1,740 3,580 4,420 8,910 5,640 650 442.5 3,710 -250 -1,890                             -10 -20  -20 -10 -30 100 10 1,880 210 510 120 20 60 70 140 2,450 -40 -40 110 -21,560 270 250 0.37 729.49 0.11 120 280 260 470 610 660 307.5 190 520 520     
      diluted
    2,560 1,750 -1,740 3,570 4,400 8,880 5,620 640 422.5 3,650 -250 -1,890                             -10 -20  -20 -10 -30 90 10 1,850 210 500 120 20 50 70 130 2,430 -40 -40 110 -21,530 270 230 0.35 709.5 0.11 120 270 260 450 570 600 272.5 170 460 460     
      weighted-average common shares outstanding:
                                                                                    
      basic
    64,692,000 67,931,000 61,856,000 61,625,000 61,620,000 61,703,000 61,679,000 61,487,000 48,612,000 46,290,000 46,267,000 42,590,000 39,718,000 39,746,000 397,084,000 396,682,000 233,140,000 228,322,000 228,051,000 227,784,000                                                             
      diluted
    64,852,000 68,083,000 61,856,000 61,874,000 61,904,000 61,870,000 61,909,000 62,065,000 50,311,000 47,096,000 46,267,000 42,590,000 39,718,000 39,746,000 397,084,000 396,836,000 233,550,000 228,469,000 228,411,000 227,784,000                                                             
      loss on extinguishment of debt
          42,417,000                                                                          
      interest expense, net of capitalized amounts
        17,950,000 19,468,000 20,691,000 21,558,000 25,226,000 27,736,000 24,634,000 24,416,000 26,486,000 24,683,000 22,682,000 20,478,000 689,000 739,000 741,000 738,000 735,000 711,000 594,000 460,000 461,000 444,000 589,000 665,000 1,369,000 831,000 4,180,000                                                  
      income tax expense
        -4,785,000 -3,515,000   837,000 -2,416,000   -6,755,000  -51,251,000  5,857,000 17,902,000   615,750 1,487,000 481,000 495,000   322,000 466,000      45,667,000   10,504,000 7,161,000 4,128,000    663,000     144,000   -3,972,000        24,000  2,432,750 2,919,000 2,730,000 4,082,000 2,223,000 1,165,000 1,315,000 3,803,000 4,425,000 4,856,000 6,294,000 6,550,000 2,777,750 1,558,000 4,735,000 4,818,000     
      loss on derivative contracts
          81,648,000 358,300,000            67,260,000           15,484,000    8,249,000     2,513,000                                         
      impairment of evaluated oil and gas properties
                585,767,000 684,956,000 1,276,518,000                                                                  
      other operating
              2,437,000 929,000 2,096,000 4,425,000 4,135,000                                                                  
      gain on extinguishment of debt
            -605,000 -2,420,000                                                                       
      merger and integration
                6,590,500 2,465,000                                                                   
      net income per common share :
                                                                                    
      basic
    2,560 1,760 -1,740 3,580 4,420 8,910 5,640 650 442.5 3,710 -250 -1,890                             -10 -20  -20 -10 -30 100 10 1,880 210 510 120 20 60 70 140 2,450 -40 -40 110 -21,560 270 250 0.37 729.49 0.11 120 280 260 470 610 660 307.5 190 520 520     
      diluted
    2,560 1,750 -1,740 3,570 4,400 8,880 5,620 640 422.5 3,650 -250 -1,890                             -10 -20  -20 -10 -30 90 10 1,850 210 500 120 20 50 70 130 2,430 -40 -40 110 -21,530 270 230 0.35 709.5 0.11 120 270 260 450 570 600 272.5 170 460 460     
      weighted-average common shares outstanding :
                                                                                    
      basic
    64,692,000 67,931,000 61,856,000 61,625,000 61,620,000 61,703,000 61,679,000 61,487,000 48,612,000 46,290,000 46,267,000 42,590,000 39,718,000 39,746,000 397,084,000 396,682,000 233,140,000 228,322,000 228,051,000 227,784,000                                                             
      diluted
    64,852,000 68,083,000 61,856,000 61,874,000 61,904,000 61,870,000 61,909,000 62,065,000 50,311,000 47,096,000 46,267,000 42,590,000 39,718,000 39,746,000 397,084,000 396,836,000 233,550,000 228,469,000 228,411,000 227,784,000                                                             
      preferred stock dividends
                     -350,000 -1,823,000 -1,824,000 -1,824,000 -1,823,000 -1,824,000 -1,824,000 -1,824,000 -1,824,000 -1,824,000 -1,824,000 -1,824,000 -1,824,000 -1,823,000 -1,824,000 -1,974,000 -1,974,000 -1,973,000 -1,974,000 -1,974,000 -1,974,000 -1,973,000 -1,974,000 -1,973,000 -1,974,000 -680,000                                 318,000 317,000 317,000 319,000 319,000 
      loss on redemption of preferred stock
                     -8,304,000                                                               
      income available to common stockholders
                -505,071,000 -680,384,000 -1,564,731,000 216,565,000 -23,543,000 47,180,000 53,357,000 -21,367,000 154,370,000 36,108,000 48,650,000 53,937,000 21,000,000 15,257,000 31,566,000 45,305,000 -3,570,000 19,315,000   -115,144,000 -113,779,000 -6,940,000  16,988,000 10,227,000 2,767,000                                          
      income available to common stockholders per common share :
                                                                                    
      basic
                -12,700 -17,120 -3,940 550                                                                 
      diluted
                -12,700 -17,120 -3,940 550                                                                 
      merger and integration expenses
                  8,067,000 15,830,000                                                                 
      income available to common stockholders per common share:
                                                                                    
      basic
                -12,700 -17,120 -3,940 550                                                                 
      diluted
                -12,700 -17,120 -3,940 550                                                                 
      oil sales
                    112,509,000 148,210,000 160,728,000 141,098,000 150,398,000 142,601,000 122,613,000 115,286,000 104,132,000 73,349,000 72,885,000 72,008,000 60,559,000 49,095,000 40,555,000 27,443,000 30,582,000 30,582,000 36,093,000 27,909,000 34,409,000 36,346,000 37,710,000 30,909,000         26,534,000 26,537,000 29,087,000 18,804,000 17,556,000 15,123,000 15,901,000 16,663,000 22,468,000 16,451,000 18,971,000 15,952,000 8,947,000 20,366,000 28,554,000 25,096,000 23,833,000 15,912,000 16,178,000 15,968,000    27,799,000         
      natural gas sales
                    6,360,250 7,168,000 6,324,000 11,949,000 11,497,000 18,613,000 14,462,000 12,154,000 14,081,000 11,265,000 9,398,000 9,355,000 8,522,000 6,832,000 4,590,000 3,255,000 2,981,000 3,734,000 3,149,000 2,482,000 4,009,000 3,311,000 2,792,000 2,376,000 3,126,000 3,783,000 3,699,000 3,001,000                                     
      lease operating expenses
                    16,627,750 19,668,000 22,776,000 24,067,000 24,475,000 18,525,000 13,141,000 13,039,000 13,199,000 11,624,000 12,145,000 12,937,000 14,124,000 9,961,000 7,311,000 6,957,000 6,308,000 7,194,000 6,575,000 6,959,000 7,509,000 6,270,000 4,363,000 4,230,000 3,367,000 5,270,000 5,384,000 5,758,000 6,089,000 5,859,000 5,821,000 8,784,000 4,023,000 5,980,000 5,299,000 5,045,000 4,706,000 4,327,000 4,031,000 4,648,000 4,790,000 4,962,000 4,656,000 4,039,000 5,459,000 3,701,000 4,870,000 5,178,000 7,245,000 5,338,000 8,613,000 6,599,000 7,541,000 8,070,000 7,365,000 5,905,000 5,995,000 5,649,000 6,197,000 6,536,000 5,246,000 5,771,000 6,123,000 5,168,000 
      production taxes
                    8,841,000 11,866,000 11,131,000 10,813,000 9,490,000 10,263,000 7,539,000 8,463,000 6,228,000 5,444,000 4,820,000 5,904,000 3,717,000 3,478,000 2,455,000 2,220,000 1,993,000 2,583,000 2,952,000 2,265,000 2,544,000 2,247,000 2,265,000 1,917,000 1,916,000 991,000 687,000 539,000                                     
      merger and integration expense
                    1,485,750 5,943,000                                                               
      settled share-based awards
                       3,024,000       6,351,000                                                      
      accretion expense
                    146,250 128,000 216,000 241,000 248,000 202,000 206,000 218,000 154,000 131,000 208,000 184,000 196,000 187,000 395,000 180,000 175,000 142,000 134,000 209,000 223,000 202,000 173,000 228,000 229,000 458,000 533,000 565,000 544,000 574,000 562,000 574,000 571,000 569,000 583,000 615,000 643,000 601,000 622,000 580,000 618,000 698,000 795,000 1,038,000 1,096,000 1,092,000 952,000 1,032,000 1,026,000 904,000 943,000 1,112,000 1,128,000 1,082,000 1,331,000 1,419,000 1,054,000 864,000 770,000 861,000 845,000 825,000 914,000 816,000 
      other operating expense
                    145,000 -161,000 935,000                                                              
      income per common share:
                                                                                    
      basic
                    87.5 210 230 -90 700 160 230 270 100 80 160 230 70 140   -1,670 -1,720 -110  360 240 70                                          
      diluted
                    87.5 210 230 -90 700 160 230 270 100 80 160 220 70 140   -1,670 -1,720 -110  350 230 70                                          
      income tax (benefit) expense
                      16,691,000 -5,149,000     247,000 237,000   48,000 -62,000                              -24,000                     
      acquisition expense
                       157,000 1,333,000 1,435,000 1,767,000 548,000 -111,000 205,000 2,373,000 450,000 1,263,000 456,000 1,906,000 48,000                     94,000 139,000                           
      shares used in computing income per common share:
                                                                                    
      basic
                        3,532,000 227,564,000 210,698,000 201,921,000 104,000 201,827,000 201,386,000 201,054,000 13,333,000 136,983,000 118,209,000 83,582,000 2,443,000 66,277,000 66,038,000 57,479,000 3,478,000 43,187,000 40,606,000 40,328,000 69,000 40,321,000 40,089,000 39,793,000 81,000 39,575,000 39,399,000 39,351,000 477,000 39,322,000 39,225,000 33,744,000 48,000 28,815,000 28,762,000 28,738,000 -21,608,928 21,705,000 21,645,000 21,607,000 -21,056,778 21,460,000 20,966,000 20,871 48 20,800 20,726,000 20,722 -19,898,730 20,650,000 20,314,000 19,396,000 -17,979,547 19,132,000 17,736,000 17,671,000 604,000 17,552,000 14,251,000 13,819 
      diluted
                        3,517,000 228,140,000 211,465,000 202,588,000 107,000 202,337,000 201,905,000 201,740,000 13,333,000 137,483,000 118,209,000 83,582,000 2,443,000 66,277,000 66,038,000 57,479,000 3,451,000 44,211,000 41,605,000 40,328,000 69,000 40,321,000 40,323,000 39,793,000 94,000 39,575,000 40,155,000 40,254,000 462,000 39,976,000 39,844,000 34,539,000 45,000 29,491,000 29,583,000 29,229,000 -21,642,800 21,705,000 21,645,000 21,607,000 -21,871,778 22,028,000 22,074,000 21,644 70 21,230 21,302,000 21,193 -21,132,637 21,326,000 21,448,000 21,329,000 -20,524,117 21,235,000 20,345,000 20,678,000 916,000 18,815,000 16,877,000 14,646 
      write-down of oil and natural gas properties
                                  61,012,000 34,776,000 121,134,000 87,301,000                                               
      rig termination fee
                                    -566,000   3,641,000                                             
      other income:
                                                                                    
      loss available to common stockholders
                                  -71,920,000 -42,933,000    -12,171,000    -111,000                                         
      loss per common share:
                                                                                    
      basic
                                  -610 -510    -210                                             
      diluted
                                  -610 -510    -210                                             
      shares used in computing loss per common share:
                                                                                    
      basic
                        3,532,000 227,564,000 210,698,000 201,921,000 104,000 201,827,000 201,386,000 201,054,000 13,333,000 136,983,000 118,209,000 83,582,000 2,443,000 66,277,000 66,038,000 57,479,000 3,478,000 43,187,000 40,606,000 40,328,000 69,000 40,321,000 40,089,000 39,793,000 81,000 39,575,000 39,399,000 39,351,000 477,000 39,322,000 39,225,000 33,744,000 48,000 28,815,000 28,762,000 28,738,000 -21,608,928 21,705,000 21,645,000 21,607,000 -21,056,778 21,460,000 20,966,000 20,871 48 20,800 20,726,000 20,722 -19,898,730 20,650,000 20,314,000 19,396,000 -17,979,547 19,132,000 17,736,000 17,671,000 604,000 17,552,000 14,251,000 13,819 
      diluted
                        3,517,000 228,140,000 211,465,000 202,588,000 107,000 202,337,000 201,905,000 201,740,000 13,333,000 137,483,000 118,209,000 83,582,000 2,443,000 66,277,000 66,038,000 57,479,000 3,451,000 44,211,000 41,605,000 40,328,000 69,000 40,321,000 40,323,000 39,793,000 94,000 39,575,000 40,155,000 40,254,000 462,000 39,976,000 39,844,000 34,539,000 45,000 29,491,000 29,583,000 29,229,000 -21,642,800 21,705,000 21,645,000 21,607,000 -21,871,778 22,028,000 22,074,000 21,644 70 21,230 21,302,000 21,193 -21,132,637 21,326,000 21,448,000 21,329,000 -20,524,117 21,235,000 20,345,000 20,678,000 916,000 18,815,000 16,877,000 14,646 
      gain on derivative contracts
                                   932,000 -4,365,750 -23,283,000     4,685,000  -763,000 3,686,000 -1,981,000 418,000                                     
      gain on sale of other property and equipment
                                           -1,080,000                                         
      gain on early extinguishment of debt
                                        3,054,000  -3,205,000      -341,500  -1,366,000     -1,942,000                             
      total other incomes
                                      13,314,000 2,385,000 -286,750 -7,800,000 3,212,000 3,441,000 -2,951,000 4,824,000 -488,000 1,888,000 2,417,000 3,970,000 -2,644,000 2,202,000 671,000 2,329,000 -1,415,000 1,722,000 3,539,000 3,196,000 3,426,000 3,233,000 -310,000 6,911,000 6,850,000 6,243,000 6,557,000 4,925,000 16,247,000 9,468,000 10,066,000 9,761,000 9,070,000 4,260,000 3,662,000 3,673,000 3,458,000 3,818,000 3,428,000 3,698,000 4,169,000 4,367,000 4,253,000 5,108,000 5,146,000 8,277,000 
      income before equity in earnings of medusa spar llc
                                        18,962,000 12,201,000 4,740,000 1,863,000 3,261,000 1,065,000 782,000 -821,000 -481,000 -1,161,000 3,793,000 370,000 71,502,000 8,195,000 19,588,000 4,067,000 656,000 1,459,000 2,037,000 3,807,000 53,727,000 -1,112,000 -1,143,000 2,287,000    7,519,000    5,642,000             
      equity from medusa spar llc
                                                                                    
      income from medusa spar llc
                                                                                    
      equity in earnings of medusa spar llc
                                            3,500 17,000 -24,000 21,000 46,000 56,000 6,000 118,000 202,000 211,000 289,000 97,000 75,000 143,000 93,000 116,000 168,000 157,000 218,000                      
      crude oil sales
                                            16,403,750 27,014,000 19,061,000 19,540,000                                     
      net income available to common shareholders
                                            -403,500 -892,000 78,000                                      
      shares used in computing net income per common share:
                                                                                    
      basic
                        3,532,000 227,564,000 210,698,000 201,921,000 104,000 201,827,000 201,386,000 201,054,000 13,333,000 136,983,000 118,209,000 83,582,000 2,443,000 66,277,000 66,038,000 57,479,000 3,478,000 43,187,000 40,606,000 40,328,000 69,000 40,321,000 40,089,000 39,793,000 81,000 39,575,000 39,399,000 39,351,000 477,000 39,322,000 39,225,000 33,744,000 48,000 28,815,000 28,762,000 28,738,000 -21,608,928 21,705,000 21,645,000 21,607,000 -21,056,778 21,460,000 20,966,000 20,871 48 20,800 20,726,000 20,722 -19,898,730 20,650,000 20,314,000 19,396,000 -17,979,547 19,132,000 17,736,000 17,671,000 604,000 17,552,000 14,251,000 13,819 
      diluted
                        3,517,000 228,140,000 211,465,000 202,588,000 107,000 202,337,000 201,905,000 201,740,000 13,333,000 137,483,000 118,209,000 83,582,000 2,443,000 66,277,000 66,038,000 57,479,000 3,451,000 44,211,000 41,605,000 40,328,000 69,000 40,321,000 40,323,000 39,793,000 94,000 39,575,000 40,155,000 40,254,000 462,000 39,976,000 39,844,000 34,539,000 45,000 29,491,000 29,583,000 29,229,000 -21,642,800 21,705,000 21,645,000 21,607,000 -21,871,778 22,028,000 22,074,000 21,644 70 21,230 21,302,000 21,193 -21,132,637 21,326,000 21,448,000 21,329,000 -20,524,117 21,235,000 20,345,000 20,678,000 916,000 18,815,000 16,877,000 14,646 
      net income available to common shares
                                               -800,000 -435,000 -1,105,000 3,799,000 488,000 71,704,000 8,406,000 19,877,000 4,164,000 731,000 1,602,000 2,130,000 3,923,000 53,895,000 -955,000 -925,000 2,404,000         5,860,000 9,630,000 12,303,000 12,767,000 4,307,000 3,683,000 9,311,000 9,157,000 8,806,000 229,000 9,411,000  
      crude oil revenues
                                                17,970,750 24,061,000 22,073,000                                  
      natural gas revenues
                                                2,543,500 3,341,000 3,287,000                                  
      total oil and natural gas revenues
                                                20,514,250 27,402,000 25,360,000 29,294,000                                 
      gain on acquired assets
                                                    -922,000  -3,688,000                              
      unrealized gain on mark-to-market derivative instruments
                                                -494,250 1,598,000 -3,505,000 -70,000                                 
      gas sales
                                                    5,351,000 7,013,000 7,747,000 6,645,000 6,887,000 5,362,000 5,668,000 6,722,000 7,631,000 4,869,000 6,054,000 8,863,000 6,593,000 12,417,000 19,475,000 19,864,000 20,108,000 21,957,000 27,296,000 29,516,000    17,782,000         
      (gain) loss on early extinguishment of debt
                                                                                    
      gain on sale of acquired assets
                                                    -54,250 -217,000                               
      loss on impairment of acquired assets
                                                    42,750 171,000                               
      callon entrada non-recourse credit facility interest expense
                                                            1,343,250 1,882,000 1,935,000                      
      loss on early extinguishment of debt
                                                          339,000        11,871,000               532,000  2,472,000 
      derivative expense
                                                                -888,000 1,386,000        30,000 30,000 90,000 -490,000 5,606,000 533,000 379,000     
      callon entrada credit facility interest expense
                                                               1,556,000                     
      equity in earnings of medusa spar llc, net of tax
                                                               117,000    113,000    161,000             
      income before medusa spar llc
                                                                4,596,000 5,796,000 5,069,000  2,562,250 2,164,000 2,443,000  8,346,750 9,286,000 11,864,000 12,237,000 5,294,250 3,436,000 8,792,000 8,949,000     
      income from medusa spar llc, net of tax
                                                                64,250 60,000 84,000      328,250 344,000  530,000 323,000 247,000  526,000 192,000 287,000 333,000 148,000 
      net income per share
                                                                                    
      basic
    2,560 1,760 -1,740 3,580 4,420 8,910 5,640 650 442.5 3,710 -250 -1,890                             -10 -20  -20 -10 -30 100 10 1,880 210 510 120 20 60 70 140 2,450 -40 -40 110 -21,560 270 250 0.37 729.49 0.11 120 280 260 470 610 660 307.5 190 520 520     
      diluted
    2,560 1,750 -1,740 3,570 4,400 8,880 5,620 640 422.5 3,650 -250 -1,890                             -10 -20  -20 -10 -30 90 10 1,850 210 500 120 20 50 70 130 2,430 -40 -40 110 -21,530 270 230 0.35 709.5 0.11 120 270 260 450 570 600 272.5 170 460 460     
      shares used in computing net income per share:
                                                                                    
      basic
                        3,532,000 227,564,000 210,698,000 201,921,000 104,000 201,827,000 201,386,000 201,054,000 13,333,000 136,983,000 118,209,000 83,582,000 2,443,000 66,277,000 66,038,000 57,479,000 3,478,000 43,187,000 40,606,000 40,328,000 69,000 40,321,000 40,089,000 39,793,000 81,000 39,575,000 39,399,000 39,351,000 477,000 39,322,000 39,225,000 33,744,000 48,000 28,815,000 28,762,000 28,738,000 -21,608,928 21,705,000 21,645,000 21,607,000 -21,056,778 21,460,000 20,966,000 20,871 48 20,800 20,726,000 20,722 -19,898,730 20,650,000 20,314,000 19,396,000 -17,979,547 19,132,000 17,736,000 17,671,000 604,000 17,552,000 14,251,000 13,819 
      diluted
                        3,517,000 228,140,000 211,465,000 202,588,000 107,000 202,337,000 201,905,000 201,740,000 13,333,000 137,483,000 118,209,000 83,582,000 2,443,000 66,277,000 66,038,000 57,479,000 3,451,000 44,211,000 41,605,000 40,328,000 69,000 40,321,000 40,323,000 39,793,000 94,000 39,575,000 40,155,000 40,254,000 462,000 39,976,000 39,844,000 34,539,000 45,000 29,491,000 29,583,000 29,229,000 -21,642,800 21,705,000 21,645,000 21,607,000 -21,871,778 22,028,000 22,074,000 21,644 70 21,230 21,302,000 21,193 -21,132,637 21,326,000 21,448,000 21,329,000 -20,524,117 21,235,000 20,345,000 20,678,000 916,000 18,815,000 16,877,000 14,646 
      other
                                                                    -203,500 -387,000 -102,000 -325,000 -515,000 -354,000 -670,000          
      income from medusa spar llc net of tax
                                                                    100,750 104,000 138,000    439,000    519,000      
      shares used in computing net income:
                                                                                    
      basic
                        3,532,000 227,564,000 210,698,000 201,921,000 104,000 201,827,000 201,386,000 201,054,000 13,333,000 136,983,000 118,209,000 83,582,000 2,443,000 66,277,000 66,038,000 57,479,000 3,478,000 43,187,000 40,606,000 40,328,000 69,000 40,321,000 40,089,000 39,793,000 81,000 39,575,000 39,399,000 39,351,000 477,000 39,322,000 39,225,000 33,744,000 48,000 28,815,000 28,762,000 28,738,000 -21,608,928 21,705,000 21,645,000 21,607,000 -21,056,778 21,460,000 20,966,000 20,871 48 20,800 20,726,000 20,722 -19,898,730 20,650,000 20,314,000 19,396,000 -17,979,547 19,132,000 17,736,000 17,671,000 604,000 17,552,000 14,251,000 13,819 
      diluted
                        3,517,000 228,140,000 211,465,000 202,588,000 107,000 202,337,000 201,905,000 201,740,000 13,333,000 137,483,000 118,209,000 83,582,000 2,443,000 66,277,000 66,038,000 57,479,000 3,451,000 44,211,000 41,605,000 40,328,000 69,000 40,321,000 40,323,000 39,793,000 94,000 39,575,000 40,155,000 40,254,000 462,000 39,976,000 39,844,000 34,539,000 45,000 29,491,000 29,583,000 29,229,000 -21,642,800 21,705,000 21,645,000 21,607,000 -21,871,778 22,028,000 22,074,000 21,644 70 21,230 21,302,000 21,193 -21,132,637 21,326,000 21,448,000 21,329,000 -20,524,117 21,235,000 20,345,000 20,678,000 916,000 18,815,000 16,877,000 14,646 
      shares used in computing net income per share amounts:
                                                                                    
      basic
                        3,532,000 227,564,000 210,698,000 201,921,000 104,000 201,827,000 201,386,000 201,054,000 13,333,000 136,983,000 118,209,000 83,582,000 2,443,000 66,277,000 66,038,000 57,479,000 3,478,000 43,187,000 40,606,000 40,328,000 69,000 40,321,000 40,089,000 39,793,000 81,000 39,575,000 39,399,000 39,351,000 477,000 39,322,000 39,225,000 33,744,000 48,000 28,815,000 28,762,000 28,738,000 -21,608,928 21,705,000 21,645,000 21,607,000 -21,056,778 21,460,000 20,966,000 20,871 48 20,800 20,726,000 20,722 -19,898,730 20,650,000 20,314,000 19,396,000 -17,979,547 19,132,000 17,736,000 17,671,000 604,000 17,552,000 14,251,000 13,819 
      diluted
                        3,517,000 228,140,000 211,465,000 202,588,000 107,000 202,337,000 201,905,000 201,740,000 13,333,000 137,483,000 118,209,000 83,582,000 2,443,000 66,277,000 66,038,000 57,479,000 3,451,000 44,211,000 41,605,000 40,328,000 69,000 40,321,000 40,323,000 39,793,000 94,000 39,575,000 40,155,000 40,254,000 462,000 39,976,000 39,844,000 34,539,000 45,000 29,491,000 29,583,000 29,229,000 -21,642,800 21,705,000 21,645,000 21,607,000 -21,871,778 22,028,000 22,074,000 21,644 70 21,230 21,302,000 21,193 -21,132,637 21,326,000 21,448,000 21,329,000 -20,524,117 21,235,000 20,345,000 20,678,000 916,000 18,815,000 16,877,000 14,646 
      oil and gas sales
                                                                        34,379,000 44,878,000 47,057,000  24,888,000 31,722,000 41,668,000 43,012,000 25,139,000 25,138,000 37,606,000 31,919,000 
      derivative income
                                                                                402,000 1,519,000   
      income before medusa spar llc and cumulative effect of change in accounting principle
                                                                                8,815,000 259,000 9,397,000 1,954,000 
      income before cumulative effect of change in accounting principle
                                                                                9,123,000 546,000 9,730,000 2,102,000 
      cumulative effect of change in accounting principle, net of tax
                                                                                    
      net income per common share:
                                                                                    
      basic
    2,560 1,760 -1,740 3,580 4,420 8,910 5,640 650 442.5 3,710 -250 -1,890                             -10 -20  -20 -10 -30 100 10 1,880 210 510 120 20 60 70 140 2,450 -40 -40 110 -21,560 270 250 0.37 729.49 0.11 120 280 260 470 610 660 307.5 190 520 520     
      net income available to common before cumulative effect of change in accounting principle
                                                                                530 10 660  
      net income available to common
                                                                                530 10 660  
      diluted
                                                                                    
      loss on mark-to-market commodity derivative contracts
                                                                                  13,000 76,000 
      net income available to common stock
                                                                                   1,783,000 
      net income per share
                                                                                    
      basic
    2,560 1,760 -1,740 3,580 4,420 8,910 5,640 650 442.5 3,710 -250 -1,890                             -10 -20  -20 -10 -30 100 10 1,880 210 510 120 20 60 70 140 2,450 -40 -40 110 -21,560 270 250 0.37 729.49 0.11 120 280 260 470 610 660 307.5 190 520 520     
      net income available to common stock before cumulative effect of change in accounting principle
                                                                                   0.13 
      diluted
                                                                                    
    Balance Sheets:
    Quarterly
    Annual
      Unit: USD2023-12-31 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 
                                                                                      
        assets
                                                                                      
        current assets:
                                                                                      
        cash and cash equivalents
      3,325,000 3,456,000 3,650,000 3,370,000 3,395,000 4,350,000 6,100,000 4,150,000 9,882,000 3,699,000 3,800,000 24,350,000 20,236,000 10,500,000 7,500,000 14,800,000 13,341,000 11,309,000 16,052,000 10,482,000 16,051,000 12,129,000 509,146,000 18,473,000 27,995,000 61,609,000 139,149,000 35,273,000 652,993,000 325,885,000 207,000 9,511,000 1,224,000 1,922,000 2,028,000 2,144,000 968,000 7,193,000 1,172,000 1,742,000 3,012,000 869,000 13,406,000 1,379,000 1,139,000 1,485,000 113,000 9,926,000 43,795,000 48,234,000 52,018,000 54,482,000 17,436,000 19,750,000 31,812,000 42,229,000 3,635,000 1,062,000 735,000 651,000 17,126,000 101,549,000 42,056,000 42,312,000 53,250,000 3,175,000 29,270,000 3,064,000 1,896,000 2,946,000 1,046,000 5,139,000 2,565,000 25,797,000 18,723,000 2,895,000 3,266 6,821,000 30,438,000 3,391,000 
        accounts receivable
      206,791,000 262,394,000 164,708,000 210,107,000 237,128,000 285,591,000 360,955,000 347,593,000 232,436,000 216,116,000 200,246,000 179,127,000 133,109,000 112,536,000 95,839,000 93,006,000 209,463,000 114,120,000 93,039,000 137,110,000 131,720,000 168,753,000 111,964,000 122,411,000 114,320,000 81,973,000 77,635,000 75,959,000 69,783,000 56,172,000 44,460,000 33,683,000 39,624,000 39,385,000 34,499,000 31,930,000 30,198,000 27,923,000 26,951,000 23,237,000 20,586,000 20,072,000 15,828,000 15,024,000 15,608,000 16,643,000 17,247,000 18,536,000 15,181,000 15,786,000 19,024,000 10,424,000 10,728,000 15,239,000 16,632,000 15,087,000 20,798,000 17,796,000 19,528,000 21,472,000 44,290,000 50,148,000 41,956,000 22,899,000 22,073,000 21,664,000 24,486,000 24,618,000 32,166,000 30,962,000 27,461,000 30,683,000 33,195,000 12,033,000 17,057,000 21,828,000 14,928 7,842,000 16,384,000 13,576,000 
        fair value of derivatives
      11,857,000 1,196,000 14,960,000 25,761,000 21,332,000 14,744,000   22,381,000 18,605,000 14,941,000 224,446,000 921,000 9,821,000 31,563,000 224,665,000 26,056,000 25,032,000 13,164,000 11,372,000 65,114,000 4,289,000 11,569,000 4,210,000 406,000 3,333,000 9,241,000 3,093,000 103,000 3,502,000 5,537,000 15,585,000 19,943,000 16,763,000 6,889,000 19,160,000 27,850,000 4,842,000 5,306,000                                          
        other current assets
      30,154,000 29,665,000 37,975,000 35,406,000 35,783,000 46,243,000 37,960,000 33,249,000 30,745,000 30,110,000 24,876,000 32,878,000 24,103,000 27,049,000 28,828,000 24,280,000 19,814,000 14,912,000 15,841,000 12,034,000 9,740,000 3,804,000 7,689,000 2,078,000 2,139,000 2,583,000 2,545,000 1,671,000 2,247,000 1,712,000 1,766,000 881,000 1,461,000 1,410,000 1,525,000 989,000 1,441,000 1,260,000 1,798,000 1,356,000 2,063,000 1,738,000 904,000 645,000 1,502,000 1,359,000 1,538,000 527,000 1,601,000 1,744,000 1,610,000 1,247,000 2,180,000 3,432,000 914,000 987,000 1,572,000 2,681,000 1,971,000 191,000 1,103,000 3,498,000 3,366,000 1,890,000 6,592,000 6,385,000 6,902,000 5,056,000 5,973,000 2,685,000 1,755,000 1,077,000 1,998,000 839,000 1,633,000 297,000 581 3,686,000 7,358,000 2,705,000 
        total current assets
      252,127,000 296,711,000 827,907,000 274,644,000 297,638,000 350,928,000 405,015,000 384,992,000 295,444,000 268,530,000 243,863,000 236,355,000 178,369,000 159,906,000 163,730,000 356,751,000 268,674,000 165,373,000 138,096,000 170,998,000 222,625,000 188,975,000 640,368,000 147,172,000 144,860,000 149,498,000 228,570,000 115,996,000 725,126,000 387,271,000 51,970,000 59,660,000 62,252,000 59,480,000 44,941,000 54,223,000 60,457,000 44,539,000 35,767,000 32,655,000 29,564,000 26,002,000 31,785,000 18,559,000 19,923,000 21,500,000 23,543,000 29,456,000 63,076,000 74,102,000 74,356,000 66,153,000 30,344,000 39,067,000 50,464,000 66,867,000 77,684,000 25,169,000 29,298,000 37,171,000 84,299,000 160,261,000 110,085,000 67,242,000 82,015,000 34,013,000 67,641,000 42,044,000 57,652,000 50,607,000 48,612,000 81,004,000 69,527,000 55,237,000 53,527,000 34,946,000 28,076 18,349,000 54,180,000 19,672,000 
        oil and natural gas properties, successful efforts accounting method:
                                                                                      
        proved properties
      5,086,973,000 4,815,776,000 4,216,641,000 4,999,527,000                                                                             
        unproved properties
      1,063,033,000 1,287,019,000 1,203,168,000 1,227,575,000                                                                             
        total oil and natural gas properties
      6,150,006,000 6,102,795,000 5,419,809,000 6,227,102,000 5,734,909,000 5,637,442,000 5,449,813,000 5,273,946,000 5,165,648,000 4,278,029,000 4,215,615,000 4,149,107,000 4,088,960,000 4,674,674,000 5,540,816,000 6,845,199,000 6,669,118,000 3,778,466,000 3,695,499,000 3,858,600,000 3,718,858,000 3,482,652,000 2,800,155,000 2,653,654,000 2,513,491,000 2,430,790,000 2,321,943,000 2,191,818,000 1,475,401,000 1,086,571,000 1,026,777,000 712,807,000 711,386,000 775,547,000 825,084,000 787,350,000 742,155,000 474,977,000 437,479,000 388,157,000 324,187,000 354,825,000 320,380,000 287,408,000 269,521,000 292,205,000 262,584,000 244,803,000 215,912,000                                
        other property and equipment
      26,784,000 26,398,000 26,596,000 28,719,000 26,152,000 26,071,000 26,332,000 28,985,000 28,128,000 30,591,000 32,805,000 31,435,000 31,640,000 32,920,000 32,444,000 33,216,000 35,253,000 24,770,000 23,363,000 22,413,000 21,901,000 21,738,000 21,514,000 21,173,000 20,361,000 18,626,000 18,071,000 18,067,000 14,114,000 12,816,000 9,971,000 9,757,000 7,700,000 7,905,000 7,874,000 8,046,000 7,118,000 7,033,000 7,388,000 7,413,000 7,255,000 10,635,000 9,926,000 9,898,000 10,058,000 12,374,000 12,506,000 12,646,000 10,512,000 10,716,000 11,480,000 3,800,000 3,370,000 3,353,000 2,724,000 2,528,000 2,508,000 2,498,000 2,392,000 2,419,000 2,536,000 2,547,000 2,130,000 2,137,000 1,986,000 2,014,000 2,104,000 2,025,000 1,996,000 1,773,000 1,741,000 1,618,000 1,605,000 1,639,000 1,666,000 1,620,000 1,541 1,527,000 1,468,000 1,519,000 
        deferred income taxes
      180,963,000 199,734,000 198,534,000 45,669,000                                                                             
        other assets
      101,596,000 66,908,000 77,265,000 58,379,000 68,560,000 71,994,000 52,209,000 41,054,000 40,158,000 89,992,000 33,444,000 37,792,000 17,730,000 15,472,000 11,224,000 14,129,000 10,716,000 4,087,000 6,061,000 6,269,000 6,278,000 5,552,000 5,322,000 5,524,000 5,397,000 827,000 655,000 676,000 384,000 1,429,000 413,000 366,000 305,000 426,000 658,000 456,000 342,000 5,294,000 5,057,000 3,168,000 1,376,000 4,205,000 3,474,000 1,998,000 1,922,000 2,004,000 3,195,000 824,000 718,000 3,395,000 2,225,000 1,019,000 1,276,000 1,341,000 2,215,000 1,819,000 1,589,000 2,174,000 2,327,000 2,172,000 2,667,000 4,934,000 3,378,000 7,473,000 9,577,000 8,289,000 11,354,000 11,220,000 3,623,000 5,864,000 1,962,000 1,515,000 1,630,000 1,888,000 2,057,000 1,972,000 2,031 2,275,000 2,600,000 933,000 
        total assets
      6,711,476,000 6,728,523,000 6,565,558,000 6,651,665,000 6,146,081,000 6,099,939,000 5,948,330,000 5,745,520,000 5,547,503,000 4,686,416,000 4,546,397,000 4,476,866,000 4,362,868,000 4,937,341,000 5,810,133,000 7,379,961,000 7,194,838,000 4,016,923,000 3,915,497,000 4,108,834,000 3,979,173,000 3,708,736,000 3,507,326,000 2,835,519,000 2,693,296,000 2,614,083,000 2,581,664,000 2,335,579,000 2,267,587,000 1,527,604,000 1,095,590,000 789,264,000 788,594,000 864,724,000 944,992,000 918,037,000 876,770,000 592,226,000 539,918,000 489,246,000 423,953,000 467,441,000 441,203,000 394,465,000 378,173,000 405,599,000 378,612,000 364,979,000 367,460,000 302,818,000 288,794,000 261,754,000 218,326,000 213,820,000 211,251,000 218,318,000 227,991,000 171,168,000 190,742,000 210,423,000 266,090,000 802,262,000 691,064,000 794,025,000 792,482,000 780,413,000 788,851,000 611,432,000 625,527,000 598,878,000 569,305,000 585,964,000 533,776,000 500,530,000 482,443,000 461,437,000 457,523 441,005,000 474,260,000 436,492,000 
        liabilities and stockholders’ equity
                                                                                      
        current liabilities:
                                                                                      
        accounts payable and accrued liabilities
      526,446,000 585,529,000 507,471,000 550,923,000 536,233,000 594,279,000 606,093,000 516,440,000 569,991,000 442,053,000 419,434,000 374,749,000 345,365,000 332,979,000 405,596,000 525,326,000 511,622,000 243,481,000 221,452,000 230,990,000 261,184,000 251,754,000 193,981,000 187,267,000 162,878,000 147,338,000 144,958,000 131,252,000 95,577,000 99,026,000 71,960,000 62,536,000 70,970,000 76,162,000 65,792,000 68,271,000 76,753,000 50,491,000 61,028,000 71,293,000 57,637,000 49,384,000 40,637,000 34,457,000 36,016,000 30,988,000 32,997,000 25,148,000 26,057,000 24,335,000 25,069,000 19,727,000 17,702,000 14,619,000 12,111,000 8,575,000 12,887,000 15,589,000 11,379,000 23,375,000 76,516,000 112,295,000 57,363,000 25,096,000 37,698,000 27,035,000 44,721,000 30,358,000 43,086,000 44,109,000 35,845,000 44,798,000 39,323,000 29,106,000 18,657,000 17,540,000 15,728 12,080,000 20,059,000 20,239,000 
        other current liabilities
      96,369,000 103,077,000 100,701,000 146,195,000 150,384,000 151,021,000 134,581,000 163,936,000 116,523,000 61,641,000 62,668,000 72,854,000 41,508,000 30,013,000 15,053,000 15,905,000 26,570,000 1,948,000 2,472,000 8,512,000 13,310,000                                                            
        total current liabilities
      646,962,000 749,795,000 680,792,000 697,688,000 702,814,000 793,997,000 1,042,036,000 1,073,304,000 872,491,000 828,376,000 813,804,000 672,049,000 497,108,000 417,400,000 477,687,000 583,768,000 652,247,000 301,011,000 291,933,000 323,937,000 314,916,000 333,132,000 245,345,000 238,535,000 205,773,000 178,092,000 161,874,000 155,409,000 131,550,000 124,602,000 94,810,000 73,734,000 87,877,000 91,080,000 83,262,000 89,804,000 98,812,000 61,762,000 75,863,000 78,421,000 62,793,000 56,525,000 46,966,000 37,796,000 38,477,000 33,552,000 33,994,000 26,400,000 27,317,000 25,707,000 27,207,000 25,069,000 21,461,000 16,397,000 15,488,000 28,368,000 117,556,000 104,322,000 116,594,000 32,831,000 85,667,000 130,541,000 85,459,000 43,179,000 52,713,000 34,210,000 55,804,000 45,753,000 61,179,000 50,936,000 61,270,000 73,903,000 63,214,000 57,445,000 39,419,000 43,749,000 41,116 40,116,000 71,864,000 59,870,000 
        long-term debt
      1,918,655,000 1,948,619,000 2,268,116,000 2,204,514,000 2,241,295,000 2,373,358,000 2,516,337,000 2,623,282,000 2,694,115,000 2,809,610,000 2,865,154,000 2,937,239,000 2,969,264,000 3,190,273,000 3,350,730,000 3,250,912,000 3,186,109,000                                             272,227,000 228,617,000 392,589,000 392,012,000 391,451,000 390,907,000 225,999,000 225,521,000 202,075,000 196,641,000 194,218,000 188,813,000 188,429,000 188,045,000 187,680,000 192,351    
        asset retirement obligations
      42,653,000 41,290,000 36,235,000 55,023,000 53,892,000 59,583,000 57,427,000 55,160,000 54,458,000 58,703,000 57,546,000 55,935,000 57,209,000 49,542,000 48,765,000 50,531,000 48,860,000 1,250,000 3,103,000 3,771,000 3,887,000 4,464,000 2,284,000 2,784,000 1,295,000 1,841,000 1,767,000 1,588,000 2,729,000 3,529,000 3,933,000 833,000 790,000 827,000 872,000 5,047,000 4,747,000 5,138,000 2,846,000 4,483,000 4,120,000 6,002,000 6,223,000 2,802,000 2,336,000 2,340,000 997,000 1,170,000 1,260,000 1,372,000 1,538,000 2,405,000 2,822,000 1,778,000 3,377,000 3,613,000 4,002,000 4,283,000 22,374,000 9,456,000 9,151,000 3,935,000 6,738,000 9,470,000 9,810,000 7,175,000 11,083,000 15,200,000 14,355,000   27,040,000 16,613,000 20,551,000 24,263,000 24,312,000 24,982    
        other long-term liabilities
      81,965,000 82,954,000 35,802,000 38,088,000 49,243,000 54,395,000 51,942,000 44,750,000 49,262,000 41,448,000 44,401,000 42,221,000 12,663,000 11,411,000 12,160,000 11,844,000 14,531,000  100,000 995,000 100,000 6,165,000 665,000 465,000 405,000 405,000 405,000 285,000 295,000 286,000 286,000 211,000 200,000 220,000 219,000 120,000 121,000 1,091,000 1,497,000 6,163,000 3,706,000 3,579,000 1,474,000 2,108,000 2,092,000 3,471,000 2,397,000 2,394,000 3,165,000 2,910,000 3,845,000 3,441,000 2,448,000 1,931,000 2,424,000 1,908,000 1,467,000 1,685,000 1,503,000 1,638,000 4,329,000 2,995,000 2,272,000 2,018,000 1,465,000 1,265,000 1,018,000 705,000 586,000 605,000 774,000 458,000 455,000 677,000 1,812,000 2,682,000 762 1,284,000 461,000 492,000 
        total liabilities
      2,720,115,000 2,867,465,000 3,022,886,000 3,001,907,000 3,060,659,000 3,290,937,000 3,688,993,000 3,830,930,000 3,681,735,000 3,753,387,000 3,789,109,000 3,708,844,000 3,651,866,000 3,733,237,000 3,928,749,000 3,937,058,000 3,971,530,000 1,548,271,000 1,431,625,000 1,680,389,000 1,533,965,000 1,420,428,000 1,257,718,000 924,375,000 837,330,000 781,218,000 765,767,000 555,546,000 534,185,000 426,885,000 437,273,000 373,718,000 425,836,000 497,643,000 464,816,000 430,486,000 443,035,000 176,475,000 257,329,000 208,666,000 144,859,000 190,829,000 164,668,000 188,269,000 172,202,000 200,137,000 171,390,000 166,228,000 168,505,000 167,321,000 170,794,000 169,334,000 202,516,000 197,937,000 196,832,000 208,986,000 308,845,000 314,922,000 331,457,000 343,581,000 395,894,000 485,948,000 399,271,000 500,729,000 505,407,000 494,542,000 503,425,000 329,437,000 344,164,000 322,052,000 312,562,000 342,895,000 305,728,000 281,508,000 267,018,000 258,423,000 259,211 259,457,000 289,092,000 304,503,000 
        commitments and contingencies
                                                                                      
        stockholders’ equity:
                                                                                      
        common stock, 0.01 par value...
      665,000 678,000 619,000 616,000 616,000 616,000 617,000 615,000 614,000 463,000 463,000 462,000 398,000 397,000 3,974,000 3,967,000 3,966,000 2,284,000 2,283,000 2,279,000 2,276,000 2,276,000 2,275,000 2,019,000 2,018,000 2,018,000 2,018,000 2,011,000 2,010,000 1,610,000 1,311,000 961,000 801,000 663,000 662,000 659,000 552,000 552,000 408,000 405,000  405,000 404,000 399,000  398,000 395,000                                  
        capital in excess of par value
      4,186,524,000 4,225,183,000 4,026,340,000 4,025,533,000 4,022,194,000 4,018,241,000 4,018,178,000 4,021,442,000 4,012,358,000 3,365,121,000 3,361,282,000 3,360,322,000  3,210,991,000 3,204,310,000 3,201,105,000  2,421,559,000 2,483,945,000 2,481,879,000 2,477,278,000 2,474,748,000 2,472,155,000 2,182,599,000 2,181,359,000 2,179,258,000 2,177,547,000 2,173,243,000 2,171,514,000 1,535,661,000 1,112,873,000 798,532,000 702,970,000 592,287,000 591,604,000 592,042,000 526,162,000 525,166,000 402,375,000 403,136,000 401,540,000 400,348,000 399,380,000 329,140,000 328,116,000 326,892,000 326,281,000 325,252,000 324,474,000 323,693,000 322,939,000 322,464,000 248,160,000 247,291,000 246,571,000 244,818,000 243,898,000 231,540,000 230,150,000 228,968,000 227,803,000 226,639,000 226,061,000 224,140,000 223,336,000 222,448,000 222,304,000 221,534,000 220,785,000 220,325,000 218,345,000 217,996,000 220,360,000 220,227,000 220,815,000 220,763,000 220,664 219,409,000 213,409,000 169,123,000 
        accumulated deficit
      -195,828,000 -364,803,000 -484,287,000 -376,391,000 -937,388,000 -1,209,855,000 -1,759,458,000 -2,107,467,000 -2,147,204,000 -2,432,555,000 -2,604,457,000 -2,592,762,000       -2,371,000 -55,728,000 -34,361,000 -188,731,000 -224,837,000 -273,489,000 -327,426,000 -348,426,000 -363,683,000 -395,236,000 -440,137,000 -436,567,000 -455,882,000 -383,962,000 -341,029,000 -225,885,000 -112,106,000 -105,166,000 -92,995,000 -109,983,000 -120,210,000 -122,977,000                                         
        total stockholders’ equity
      3,991,361,000 3,861,058,000 3,542,672,000 3,649,758,000 3,085,422,000 2,809,002,000 2,259,337,000 1,914,590,000 1,865,768,000 933,029,000 757,288,000 768,022,000 711,002,000 1,204,104,000 1,881,384,000 3,442,903,000 3,223,308,000 2,468,652,000 2,483,872,000 2,428,445,000 2,445,208,000 2,288,308,000 2,249,608,000 1,911,144,000 1,855,966,000 1,832,865,000 1,815,897,000 1,780,033,000 1,733,402,000 1,100,719,000 658,317,000 415,546,000 362,758,000 367,081,000 480,176,000 487,551,000 433,735,000 415,751,000 282,589,000                 9,332,000 -80,854,000 -143,754,000 -140,715,000 -133,158,000 -129,804,000 316,314,000 291,793,000 293,296,000 287,075,000 285,871,000 285,426,000 281,995,000 281,363,000 276,826,000 256,743,000 243,069,000 228,048,000 219,022,000 215,425,000 203,014,000 198,312 181,548,000 185,168,000 131,989,000 
        total liabilities and stockholders’ equity
      6,711,476,000 6,728,523,000 6,565,558,000 6,651,665,000 6,146,081,000 6,099,939,000 5,948,330,000 5,745,520,000 5,547,503,000 4,686,416,000 4,546,397,000 4,476,866,000 4,362,868,000 4,937,341,000 5,810,133,000 7,379,961,000 7,194,838,000 4,016,923,000 3,915,497,000 4,108,834,000 3,979,173,000 3,708,736,000 3,507,326,000 2,835,519,000 2,693,296,000 2,614,083,000 2,581,664,000 2,335,579,000 2,267,587,000 1,527,604,000 1,095,590,000 789,264,000 788,594,000 864,724,000 944,992,000 918,037,000 876,770,000 592,226,000 539,918,000                 218,318,000 227,991,000 171,168,000 190,742,000 210,423,000 266,090,000 802,262,000 691,064,000 794,025,000 792,482,000 780,413,000 788,851,000 611,432,000 625,527,000 598,878,000 569,305,000 585,964,000 533,776,000 500,530,000 482,443,000 461,437,000 457,523 441,005,000 474,260,000 436,492,000 
        deferred financing costs
       14,235,000 15,447,000 17,152,000 18,822,000 13,504,000 14,961,000 16,543,000 18,125,000 19,274,000 20,670,000 22,177,000 23,643,000 24,850,000 25,993,000 21,383,000 22,233,000 5,081,000 5,427,000 5,742,000 6,087,000 6,406,000 5,749,000 4,588,000 4,863,000 5,209,000 5,273,000   3,431,000 3,076,000 3,359,000 3,642,000 15,858,000 16,639,000 17,432,000 18,200,000                                            
        assets held for sale
        606,614,000                                                                              
        liabilities associated with assets held for sale
        71,114,000                                                                              
        oil and natural gas properties, full cost accounting method:
                                                                                      
        evaluated properties
          4,023,603,000 3,789,530,000 3,573,282,000 3,426,156,000 3,352,821,000 2,565,601,000 2,517,783,000 2,394,339,000 2,355,710,000 2,916,542,000 3,777,956,000 5,036,095,000 4,682,994,000 4,830,499,000 4,665,761,000 4,760,071,000 4,585,020,000 4,305,189,000 3,814,242,000 3,598,868,000 3,429,570,000 3,283,985,000 3,125,238,000 3,009,059,000 2,754,353,000 2,593,798,000 2,530,978,000 2,390,105,000 2,335,223,000 2,251,993,000 2,207,999,000 2,140,937,000 2,077,985,000 1,894,803,000 1,844,691,000 1,783,598,000 1,701,577,000 1,634,151,000 1,583,159,000 1,533,739,000 1,497,010,000 1,490,862,000 1,472,497,000 1,446,890,000 1,421,640,000 1,388,501,000 1,361,534,000 1,333,509,000 1,316,677,000 1,280,714,000 1,248,051,000 1,234,825,000 1,593,884,000 1,576,267,000 1,587,007,000 1,587,795,000 1,581,698,000 1,345,841,000 1,272,005,000 1,391,964,000 1,349,904,000 1,313,382,000 1,268,691,000 1,106,411,000 1,096,907,000 1,043,542,000 1,010,963,000 985,614,000 937,698,000 899,929,000 878,941,000 875,503,000 862,101 832,428,000 827,175,000 815,997,000 
        unevaluated properties
          1,711,306,000 1,847,912,000 1,876,531,000 1,847,790,000 1,812,827,000 1,712,428,000 1,697,832,000 1,754,768,000 1,733,250,000 1,758,132,000 1,762,860,000 1,809,104,000 1,986,124,000 1,405,993,000 1,429,624,000 1,432,118,000 1,404,513,000 1,385,529,000 1,144,138,000 1,174,385,000 1,168,016,000 1,173,614,000 1,194,999,000 1,154,850,000 668,721,000 393,875,000 379,605,000 129,211,000 132,181,000 141,581,000 131,121,000 142,867,000 142,525,000 40,445,000 36,957,000                                          
        operating lease right-of-use assets
                  22,526,000 29,519,000 35,926,000 56,050,000 63,908,000 24,447,000 31,904,000 40,977,000                                                             
        deferred tax asset
                     51,250,000 115,720,000      26,000 26,000 52,000          46,497,000 47,238,000  3,321,000 5,846,000 54,047,000 57,765,000 3,323,000 63,892,000 64,542,000 64,383,000 64,911,000 63,965,000 64,097,000 63,496,000              22,707,000        9,768,000 37,788,000     2,986 4,018,000 1,862,000 1,698,000 
        operating lease liabilities
                  13,175,000 19,458,000 24,355,000 37,686,000 42,858,000 19,196,000 24,141,000 29,134,000                                                             
        capital in excess of par
                  3,222,959,000    3,198,076,000                                                                
        retained earnings
                  -2,512,355,000 -2,007,284,000 -1,326,900,000 237,831,000 21,266,000 44,809,000                                -191,617,000 -200,023,000 -219,916,000 -224,080,000 -224,811,000        85,554,000 79,698,000 74,545,000 66,913,000 62,371,000 60,103,000 57,522,000 51,719,000 45,859,000 36,229,000 23,926,000 11,159,000 6,852,000 3,169,000 -6,142,000 -15,299 -24,105,000 -24,334,000 -33,745,000 
        deferred tax liability
                       39,007,000 21,106,000 4,415,000 9,564,000 3,917,000 2,431,000 1,950,000 1,457,000 1,158,000 921,000 556,000 90,000 42,000     830,000 3,687,000 6,214,000                         43,998,000 54,568,000 35,094,000 32,190,000 32,330,000 32,169,000 30,736,000 30,054,000 27,463,000 28,044,000 49,018,000 31,633,000 14,406,000 13,479,000      
        preferred stock, series a cumulative, 0.01 par value and 50.00 liquidation preference, 2,500,000 shares authorized: 0 and 1,458,948 shares outstanding, respectively
                                                                                      
        less accumulated depreciation, depletion, amortization and impairment
                       -2,458,026,000 -2,399,886,000 -2,333,589,000 -2,270,675,000 -2,208,066,000 -2,158,225,000 -2,119,599,000 -2,084,095,000 -2,026,809,000 -1,998,294,000 -1,972,091,000 -1,947,673,000 -1,901,102,000 -1,883,806,000 -1,806,509,000                                                 
        evaluated oil and natural gas properties
                       2,372,473,000 2,265,875,000 2,426,482,000                                                             
        restricted investments
                       3,490,000 3,468,000 3,450,000 3,424,000 3,413,000 3,393,000 3,382,000 3,372,000 3,362,000 3,348,000 3,339,000 3,332,000 3,329,000 3,323,000 3,315,000 3,309,000 3,305,000 3,299,000 3,292,000 3,810,000 3,802,000 3,806,000 3,806,000 3,806,000 3,800,000 3,800,000 3,800,000 3,798,000 3,796,000 3,792,000 3,792,000 3,790,000 3,750,000 4,414,000 4,082,000 4,044,000 4,005,000 4,365,000 4,327,000 4,065,000 4,057,000 4,784,000 4,775,000    141,000 100,000 604,000 2,658,000 5,104,000 4,306,000  4,200,000 4,152,000 1,858,000 4,989,000 5,867,000 5,833,000 5,687 7,715,000 7,696,000 7,518,000 
        accrued interest
                       25,660,000 22,695,000 25,920,000 24,665,000 27,325,000 11,351,000 18,491,000 9,235,000 18,375,000 9,256,000 12,114,000 6,057,000 5,950,000 6,258,000 5,879,000 5,989,000 6,066,000 5,974,000 5,853,000 5,993,000                                            
        cash-settleable restricted stock unit awards
                       535,000 819,000 1,060,000 1,390,000 2,422,000 1,781,000 4,081,000 4,621,000 4,158,000 3,650,000 4,025,000 8,919,000 8,269,000 5,168,000 3,798,000                                                 
        senior secured revolving credit facility
                       200,000,000 105,000,000 330,000,000 200,000,000 65,000,000  75,000,000 25,000,000      40,000,000  40,000,000 99,000,000 75,000,000 37,000,000 35,000,000 20,000,000 84,000,000 68,000,000  17,000,000  27,000,000 10,000,000 40,000,000 10,000,000          10,000,000                        
        6.125% senior unsecured notes due 2024
                       596,337,000 596,154,000 595,971,000 595,788,000                                                            
        6.375% senior unsecured notes due 2026
                       394,317,000 394,106,000 393,896,000 393,685,000                                                            
        preferred stock, series a cumulative, 0.01 par value and 50.00 liquidation preference, 2,500,000 shares authorized; 0 and 1,458,948 shares outstanding, respectively
                                                                                      
        preferred stock, series a cumulative, 0.01 par value and 50.00 liquidation preference, 2,500,000 shares authorized; 1,458,948 shares outstanding
                        15,000 15,000  15,000 15,000 15,000  15,000                                                       
        net evaluated oil and natural gas properties
                          2,314,345,000 2,097,123,000 1,656,017,000 1,479,269,000 1,345,475,000 1,257,176,000 1,126,944,000 1,036,968,000 806,680,000                                                    
        acquisition deposit
                            28,500,000  900,000    46,138,000 32,700,000        10,629,000                                           
        preferred stock, series a cumulative, 0.01 par value and 50.00 liquidation preference, 2,500,000 shares authorized: 1,458,948 shares outstanding
                          15,000    15,000                                                        
        6.125% senior unsecured notes due 2024, net of unamortized deferred financing costs
                           595,729,000 595,552,000 595,374,000 595,196,000 595,115,000 595,138,000 390,536,000 390,219,000                                                    
        6.375% senior unsecured notes due 2026, net of unamortized deferred financing costs
                           392,799,000 392,907,000                                                          
        prepaid
                               4,650,000                                                       
        preferred stock, series a cumulative, 0.01 par value and 50.00 liquidation preference, 2,500,000 shares authorized; 1,458,948 and 1,458,948 shares outstanding, respectively
                                15,000                                                      
        deferred financing costs related to the senior secured revolving credit facility
                                 2,744,000 3,092,000                                                    
        preferred stock, series a cumulative, 0.01 par value and 50.00 liquidation preference, 2,500,000 shares authorized: 1,458,948 and 1,458,948 shares outstanding, respectively
                                 15,000                                                     
        secured second lien term loan, net of unamortized deferred financing costs
                                   290,085,000 289,559,000 289,062,000 288,565,000                                                
        preferred stock, series a cumulative, 0.01 par value and 50.00 liquidation preference, 2,500,000 shares authorized: 1,458,948 and 1,578,948 shares outstanding, respectively
                                  15,000 15,000 15,000 15,000                                                 
        net oil and natural gas properties
                                   692,696,000 647,172,000 583,596,000 579,205,000 633,966,000 693,963,000 644,483,000 599,630,000 434,532,000 400,522,000 351,385,000 280,965,000 304,285,000 265,198,000 226,432,000 200,745,000 246,533,000 240,133,000 226,370,000 213,309,000                                
        less accumulated depreciation, depletion and amortization
                                      -1,756,018,000 -1,618,027,000 -1,514,036,000 -1,496,454,000 -1,478,355,000 -1,460,271,000 -1,444,169,000 -1,432,213,000 -1,420,612,000 -1,329,866,000 -1,317,961,000 -1,307,307,000 -1,296,265,000 -1,244,329,000 -1,232,364,000 -1,220,520,000 -1,208,331,000 -1,195,371,000 -1,182,317,000 -1,165,685,000 -1,155,915,000 -1,145,363,000 -1,137,978,000 -1,130,942,000 -1,488,718,000 -1,480,000,000 -1,473,139,000 -1,464,687,000 -1,455,275,000 -780,134,000 -768,621,000 -753,403,000 -738,374,000 -661,279,000 -645,348,000 -626,529,000 -604,682,000 -582,999,000 -568,026,000 -553,235,000 -539,399,000 -532,845,000 -523,532,000 -509,861,000 -494,453 -483,458,000 -473,311,000 -458,835,000 
        cash-settled restricted stock unit awards
                                      10,128,000 8,025,000 8,172,000 6,473,000 3,856,000                                            
        preferred stock, series a cumulative, 0.01 par value and 50.00 liquidation preference, 2,500,000 shares authorized: 1,578,948 and 1,578,948 shares outstanding, respectively
                                      16,000 16,000 16,000 16,000 16,000 16,000 16,000 16,000                                         
        secured second lien term loan
                                       300,000,000 300,000,000 300,000,000 300,000,000 82,500,000                                           
        13% senior notes:
                                                                                      
        principal outstanding
                                             48,481,000 48,481,000 96,961,000 96,961,000 96,961,000 96,961,000 96,961,000 96,961,000 106,961,000 106,961,000 106,961,000 106,961,000 106,961,000 137,961,000 137,961,000 137,961,000 137,961,000 137,961,000                        
        deferred credit, net of accumulated amortization of 0 and 26,239, respectively
                                                                                      
        total 13% senior notes
                                             53,315,000 53,748,000 108,220,000 109,053,000 109,869,000 110,668,000 111,450,000 112,215,000 124,534,000 125,345,000 126,139,000 126,917,000 127,678,000 165,504,000 166,451,000 167,378,000 168,285,000                         
        market-based restricted stock unit awards
                                           5,668,000 6,683,000                                          
        second lien term loan facility
                                            82,500,000                                          
        fair market value of derivatives
                                              60,000  1,647,000 1,511,000 1,674,000 2,013,000 4,645,000 467,000 2,499,000 8,338,000 1,704,000 2,937,000 937,000 646,000 1,106,000 637,000 145,000 3,630,000 7,064,000 14,857,000 21,780,000 5,066,000 21,358,000 8,613,000  2,185,000 4,325,000 4,202,000 13,311,000 14,014,000 4,382,000 2,165,000 889,000    1,570 11,528,000 6,247,000 5,078,000 
        deferred tax asset, current
                                             6,320,000 3,843,000                                        
        oil and natural gas properties, full-cost accounting method:
                                                                                      
        unevaluated properties excluded from amortization
                                             36,772,000 43,222,000 50,540,000 55,182,000 60,976,000 68,776,000 45,672,000 22,451,000 18,433,000 2,603,000 7,811,000 6,889,000 8,662,000 8,106,000 20,038,000 30,482,000 27,714,000 25,442,000 29,315,000 26,147,000 28,595,000 32,829,000 51,401,000 54,514,000 61,347,000 70,176,000 67,394,000 68,050,000 62,396,000 54,802,000 60,825,000 58,987,000 55,013,000 49,065,000 57,671,000 52,117,000 40,307,000 39,042 48,101,000 42,703,000 38,550,000 
        liabilities and stockholders' equity
                                                                                      
        deferred credit, net of accumulated amortization of 26,673 and 26,239, respectively
                                             4,834,000                                         
        stockholders' equity:
                                                                                      
        total stockholders' equity
                                             280,580,000 279,094,000 276,612,000 276,535,000 206,196,000 205,971,000 205,462,000 207,222,000 198,751,000 198,955,000 135,497,000 118,000,000 92,420,000 15,810,000 15,883,000 14,419,000                          
        total liabilities and stockholders' equity
                                             489,246,000 423,953,000 467,441,000 441,203,000 394,465,000 378,173,000 405,599,000 378,612,000 364,979,000 367,460,000 302,818,000 288,794,000 261,754,000 218,326,000 213,820,000 211,251,000                          
        investment in medusa spar llc
                                               7,776,000 7,946,000 8,260,000 8,568,000 8,809,000 9,027,000 9,361,000 9,956,000 9,914,000 10,213,000 10,214,000 10,424,000 10,665,000 10,928,000 11,180,000 11,537,000 11,688,000 11,926,000 12,183,000 12,577,000 12,679,000 12,869,000 12,740,000 12,673,000 12,641,000 12,610,000 12,641,000 12,580,000 12,560,000 12,510,000 11,835,000 11,389,000 11,311,000 11,129,000 10,480,000 9,787 9,419,000 9,212,000 8,699,000 
        deferred credit, net of accumulated amortization of 20,814 and 17,800, respectively
                                              5,267,000                                        
        credit facility
                                              22,000,000                                        
        preferred stock, series a cumulative, .01 par value and 50.00 liquidation preference, 2,500 shares authorized; 1,579 and 0 shares outstanding, respectively
                                              16,000                                        
        common stock, .01 par value...
                                              404,000    398,000   394,000 394,000 394,000 394,000 391,000 290,000 290,000 288,000 288,000 287,000 218,000 217,000 216,000 216,000 216,000 211,000 209,000 209,000 209,000 208,000 208,000 207,000 207,000 206,000 203,000 194,000 193,000 183,000 177,000 176 176,000 175,000 140,000 
        retained deficit
                                              -122,866,000 -124,157,000 -123,265,000 -123,343,000 -122,543,000 -122,107,000 -121,001,000 -127,049,000 -127,537,000      -226,413,000                          
        deferred credit, net of accumulated amortization of 20,248 and 17,800, respectively
                                               11,259,000                                       
        preferred stock, series a cumulative, 0.01 par value and 50.00 liquidation preference, 2,500 shares authorized: 1,579 and 0 shares outstanding, respectively
                                               16,000 16,000                                      
        deferred credit, net of accumulated amortization of 19,415 and 17,800, respectively
                                                12,092,000                                      
        deferred credit, net of accumulated amortization of 18,599 and 17,800, respectively
                                                 12,908,000                                     
        preferred stock, 0.01 par value...
                                                                                      
        crude oil and natural gas properties, full-cost accounting method:
                                                                                      
        deferred credit, net of accumulated amortization of 17,800 and 13,123, respectively
                                                  13,707,000                                    
        preferred stock, .01 par value...
                                                                                4,000 6,000 6,000 6,000 6,000 
        other comprehensive income
                                                   279,000 1,547,000 154,000 1,624,000 3,027,000       -7,478,000 -4,056,000 -581,000 7,234,000 14,157,000 3,905,000 -14,177,000 -5,598,000 -3,383,000 843,000 2,811,000 2,731,000 8,652,000 10,435,000 1,963,000 944,000         
        deferred credit, net of accumulated amortization of 17,018 and 13,123, respectively
                                                   14,489,000                                   
        deferred credit, net of accumulated amortization of 16,253 and 13,123, respectively
                                                    15,254,000                                  
        deferred credit, net of accumulated amortization of 13,934 and 13,123, respectively
                                                     17,573,000                                 
        deferred credit, net of accumulated amortization of 13,123 and 3,964, respectively
                                                      18,384,000                                
        oil and gas properties, full-cost accounting method:
                                                                                      
        net oil and gas properties
                                                       193,130,000 179,217,000 167,824,000 160,762,000 135,351,000 110,073,000 103,883,000                         
        total oil and gas properties
                                                       200,941,000 186,106,000 176,486,000 168,868,000 155,389,000 140,555,000 131,597,000 130,608,000 125,582,000 140,015,000 151,703,000 159,252,000 617,108,000 557,898,000 699,908,000 681,706,000 719,497,000 691,393,000 542,278,000 547,027,000 521,368,000 501,924,000 487,392,000 447,364,000 424,755,000 407,526,000 405,949,000 406,690 397,071,000 396,567,000 395,712,000 
        13% senior notes due 2016
                                                                                      
        deferred credit, net of accumulated amortization of 12,329 and 3,964, respectively
                                                       19,178,000                               
        13% senior notes
                                                                                      
        deferred credit, net of accumulated amortization of 11,551 and 3,964, respectively
                                                        19,956,000                              
        other comprehensive loss
                                                        -5,310,000 -10,519,000 -8,560,000 -6,887,000 -6,027,000 -7,288,000                 -331,000    -1,883    
        deferred credit, net of accumulated amortization of 10,790 and 3,964, respectively
                                                         20,717,000                             
        accounts receivable - boemre royalty recoupment
                                                                                      
        9.75% senior notes, net of 0 and 232 discount, respectively
                                                                                      
        subtotal
                                                          21,461,000 16,397,000 15,488,000                          
        callon entrada non-recourse credit facility
                                                               84,450,000 82,841,000                      
        deferred credit, net of accumulated amortization of 3,964 and 294, respectively
                                                          27,543,000                            
        stockholders' equity
                                                                                      
        deferred credit, net of accumulated amortization of 3,017 and 294, respectively
                                                           28,490,000                           
        accounts receivable - mms royalty recoupment
                                                                                      
        deferred credit, net of accumulated amortization of 2,090 and 294, respectively
                                                            29,417,000                          
        accounts receivable — mms royalty recoupment
                                                             7,927,000                         
        9.75% senior notes, net of 174 and 232 discount, respectively
                                                             15,878,000                         
        deferred credit, net of accumulated amortization of 1,183 and 294, respectively
                                                             30,324,000                         
        stockholders’ equity
                                                                                      
        retained (deficit) earnings
                                                             -228,486,000 -317,561,000 -371,456,000 -370,501,000 -369,576,000 -371,980,000                    
        accounts receivable-mms royalty recoupment
                                                              51,534,000                        
        9.75% senior notes
                                                              15,820,000 196,412,000 195,729,000 195,065,000 194,420,000                    
        callon entrada
                                                              84,847,000                        
        senior notes
                                                                                      
        deferred credit
                                                              31,213,000                        
        discount
                                                                                      
        total senior notes
                                                              169,174,000                        
        total long-term debt
                                                              179,174,000 196,412,000 200,729,000 273,500,000 272,855,000                    
        callon entrada non-recourse credit facility interest payable
                                                                                      
        senior secured credit facility
                                                                5,000,000                      
        callon entrada credit facility
                                                                 78,435,000 78,435,000                    
        callon entrada credit facility interest payable
                                                                 3,339,000                     
        senior revolving credit facility
                                                                                      
        advances from joint interest owners
                                                                   12,966,000                   
        current maturities of long-term debt
                                                                         195,000 213,000 221,000 229,000 236,000 263,000 328,000 390,000 450,000 576 833,000 34,078,000 18,313,000 
        accrued liabilities to be refinanced
                                                                       10,000,000    7,000,000   5,000,000        
        long-term gas balancing receivable
                                                                          714,000 534,000 660,000 723,000 403,000 711,000 671,000 637,000 725 631,000 675,000 741,000 
        undistributed oil and gas revenues
                                                                          3,525,000 1,107,000 1,294,000 1,176,000 721,000 1,367,000 1,120,000 920,000 1,162 993,000 1,044,000 985,000 
        unearned compensation-restricted stock
                                                                              -3,334,000    -5,352    
        restricted investments-long-term
                                                                           6,172,000 1,896,000 1,877,000         
        asset retirement obligations-current
                                                                           5,499,000 22,783,000  21,660,000 16,244,000 11,640,000 14,583,000 13,300 8,945,000 6,259,000 12,582,000 
        asset retirement obligations-long-term
                                                                           33,973,000 25,833,000 25,298,000      28,177,000 29,953,000 24,587,000 
        unearned compensation restricted stock
                                                                               -3,631,000 -3,870,000 -5,058,000  -5,688,000 -129,000 -215,000 
        deferred tax asset-current
                                                                              26,770,000 13,560,000 14,041,000 7,862,000 5,676    
        restricted investments-current
                                                                              4,110,000 3,008,000 2,073,000 2,064,000 2,055    
        accrued net profits interest payable
                                                                                763,000 1,091,000 1,927 1,881,000 1,817,000 1,765,000 
        suspended medusa oil royalties
                                                                                  5,430 3,856,000 2,360,000 908,000 
        accumulated other comprehensive loss
                                                                               -4,619,000 -4,876,000 -6,732,000  -8,250,000 -3,959,000 -3,320,000 
        restricted cash
                                                                                      
        oil and gas properties, full cost accounting method:
                                                                                      
        long-term debt-excluding current maturities
                                                                                   187,080,000 186,814,000 219,554,000 
        accounts payable and accrued liabilities to be refinanced
                                                                                   2,800,000   
      Cashflow Statements:
      Quarterly
      Annual
        Unit: USD2023-12-31 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 2011-12-31 2011-09-30 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 
                                                                                    
          cash flows from operating activities:
                                                                                    
          net income
        168,975,000 119,484,000 -107,896,000 220,638,000 272,467,000 549,603,000 348,009,000 39,737,000 285,351,000 171,902,000 -11,695,000 -80,407,000 -505,071,000 -680,384,000 -1,564,731,000 216,565,000 -23,543,000 55,834,000 55,180,000 -19,543,000 156,194,000 37,930,000 50,475,000 55,761,000 22,824,000 17,081,000 33,390,000 47,129,000 -1,746,000 21,139,000 -70,097,000 -41,109,000 -113,170,000 -111,805,000 -4,967,000 -10,197,000 18,962,000 12,201,000 4,740,000 1,863,000 3,264,000 1,082,000 758,000 -800,000 -435,000 -1,105,000 71,704,000 8,404,000 731,000 1,602,000 2,130,000 3,923,000 53,895,000 -955,000 -925,000 2,404,000 -457,534,000 5,856,000 5,153,000 7,632,000 4,542,000 2,268,000 2,581,000 5,803,000 5,860,000 9,630,000 12,303,000 12,767,000 4,307,000 3,683,000 9,311,000 9,475,000 9,123,000 546,000 9,730,000 2,102,000 
          adjustments to reconcile net income to net cash from operating activities:
                                                                                    
          depreciation, depletion and amortization
        143,750,000 138,598,000 127,348,000 125,965,000 131,296,000 122,833,000 109,409,000 102,979,000 112,551,000 89,890,000 83,128,000 70,987,000 96,037,000 114,201,000 138,930,000 131,463,000 63,783,000 57,107,000 64,374,000 60,672,000 60,301,000 48,977,000 39,387,000 36,066,000 37,222,000 29,132,000 26,765,000 24,932,000 22,512,000 17,733,000 16,698,000 16,129,000 17,308,000 16,026,000 18,011,000 18,546,000 18,521,000 16,517,000 12,378,000 10,598,000 10,725,000 12,263,000 11,012,000 11,393,000 14,038,000 12,329,000 13,252,000 13,298,000 10,769,000 7,615,000 7,256,000 6,989,000 8,915,000 7,074,000 8,656,000 9,629,000 22,529,000 11,718,000 15,402,000 15,213,000 16,407,000 16,175,000 19,056,000 22,039,000 21,824,000 15,109,000 14,978,000 14,018,000 6,749,000 9,505,000 13,860,000 15,543,000 11,171,000 10,316,000 14,645,000 12,032,000 
          impairment of oil and gas properties
                                                                                  
          amortization of non-cash debt related items
        2,811,000 2,734,000 2,614,000 2,631,000 1,017,000 1,062,000 1,485,000 1,716,000 2,958,000 2,658,000 2,252,000 2,256,000 2,319,000 437,000 738,000 407,000 689,000 739,000 741,000 738,000 734,000 708,000 588,000 453,000 455,000 441,000 589,000 665,000 744,000 810,000 780,000 781,000 781,000 781,000 780,000 781,000 778,000 196,000 179,000 119,000 123,000 120,000 117,000 111,000 109,000 68,000 123,000 120,000 92,000 84,000 84,000 137,000                         
          deferred income tax (benefit) expense
        18,771,000               64,048,000   16,691,000 -5,149,000     247,000    48,000      -2,116,000 -5,077,000        -169,000                                 
          (gain) loss on derivative contracts
        -43,116,000 55,804,000 -5,941,000 -25,645,000      107,169,000 190,463,000 214,523,000 125,739,000 27,038,000 126,965,000 -251,969,000                                                             
          cash received (paid) for commodity derivative settlements
        -10,352,000 1,028,000       -156,719,000 -110,807,000 -85,409,000 -42,162,000                                                                 
          gain on sale of oil and gas properties
        -2,906,000                                                                            
          (gain) loss on extinguishment of debt
            3,241,000                                                                        
          non-cash expense related to share-based awards
        1,889,000 3,955,000 3,688,000 1,881,000 1,452,000 99,000 -3,210,000 4,166,000                                                                     
          other
        824,000 3,971,000 1,776,000 -1,184,000 -1,568,000 3,504,000 2,306,000 2,894,000 31,000 6,495,000 3,294,000 1,217,000 1,347,000 2,099,000 3,521,000 890,000 10,776,000 -261,000 -2,224,000 -177,000                                                         
          changes in current assets and liabilities:
                                                                                    
          accounts receivable
        34,066,000 -28,352,000 18,552,000 24,019,000 55,435,000 71,479,000 -14,072,000 -116,322,000 -3,175,000 -15,870,000 -21,674,000 -45,683,000 -20,340,000 -16,930,000 -2,833,000 115,873,000 -52,671,000 -21,081,000 44,071,000 -5,390,000 37,033,000 -56,764,000 10,447,000 -8,067,000 -32,347,000 -4,338,000 -3,744,000 -4,066,000 -13,611,000 -11,608,000 -10,777,000 5,941,000 2,517,000 -332,000 -4,821,000 -2,125,000 101,000 -2,748,000 -2,340,000 -2,928,000 -42,000 -4,244,000 -544,000 1,333,000 377,000 776,000 1,546,000 2,629,000 4,934,000 1,231,000 6,281,000 47,081,000 -53,928,000 1,914,000 680,000 5,761,000 -35,309,000 15,564,000 -1,822,000 -648,000 -1,233,000 1,551,000 2,933,000 3,407,000  3,287,000 70,000 1,212,000  5,801,000 5,296,000 -6,965,000  8,248,000 -2,776,000 -3,561,000 
          other current assets
        -3,284,000 -6,574,000 -4,986,000 -1,618,000 -3,163,000 -4,732,000 -3,317,000 -4,180,000 -1,698,000 -1,278,000 -4,567,000 -2,856,000 6,000 -2,208,000 -3,567,000 -781,000 1,006,000 929,000 -3,807,000 -2,294,000 -5,936,000 3,885,000 -5,611,000 61,000 444,000 -38,000 -874,000 576,000 -535,000 54,000 -885,000 580,000 -51,000 116,000 -537,000 452,000 -180,000 537,000 -442,000 707,000 -324,000 -834,000 -259,000 857,000 -144,000 181,000 143,000 -536,000 1,253,000 -2,120,000 73,000 585,000 373,000 27,000 -1,780,000 912,000 2,395,000 -132,000 -1,476,000 4,702,000 -206,000 516,000 -1,846,000 917,000 -3,288,000 -930,000 -679,000 922,000 949,000 793,000 -1,337,000 265,000 990,000 3,679,000 -4,599,000 901,000 
          accounts payable and accrued liabilities
        -13,162,000 -812,000 -22,692,000 -46,018,000 -49,350,000 10,247,000 -5,953,000 -12,987,000 72,467,000 47,729,000 14,532,000 12,182,000                                                                 
          net cash from operating activities
        298,266,000 266,828,000 279,522,000 247,913,000 372,647,000 475,275,000 372,325,000 281,270,000 366,310,000 294,565,000 175,603,000 137,665,000 134,578,000 135,701,000 97,801,000 191,695,000 137,578,000 113,692,000 150,487,000 74,559,000 151,639,000 116,036,000 107,764,000 92,215,000 80,186,000 53,893,000 43,128,000 52,684,000 68,678,000 12,393,000 21,376,000 16,120,000 31,323,000 25,547,000 23,858,000 6,124,000 36,690,000 22,100,000 15,630,000 19,967,000                                     
          cash flows from investing activities:
                                                                                    
          capital expenditures
        -217,978,000 -252,407,000 -293,697,000 -204,900,000 -238,760,000 -340,286,000 -212,461,000 -201,478,000 -150,935,000 -176,549,000 -149,662,000 -101,341,000 -109,408,000 -137,177,000 -206,121,000 -224,448,000 -137,115,000 -143,995,000 -166,219,000 -193,211,000 -155,821,000 -156,982,000 -187,040,000 -111,330,000 -152,621,000 -121,128,000 -79,936,000 -66,154,000 -67,334,000 -47,418,000 -24,505,000 -50,775,000 -48,744,000 -47,701,000 -60,067,000 -70,780,000 -43,803,000 -61,574,000 -61,459,000 -65,760,000                                     
          free cash flows
        80,288,000 14,421,000 -14,175,000 43,013,000 133,887,000 134,989,000 159,864,000 79,792,000 215,375,000 118,016,000 25,941,000 36,324,000 25,170,000 -1,476,000 -108,320,000 -32,753,000 463,000 -30,303,000 -15,732,000 -118,652,000 -4,182,000 -40,946,000 -79,276,000 -19,115,000 -72,435,000 -67,235,000 -36,808,000 -13,470,000 1,344,000 -35,025,000 -3,129,000 -34,655,000 -17,421,000 -22,154,000 -36,209,000 -64,656,000 -7,113,000 -39,474,000 -45,829,000 -45,793,000                                     
          acquisition of oil and gas properties
        -9,505,000 -263,984,000 -8,459,000 -5,991,000 -10,139,000 -2,169,000 -6,536,000 -9,409,000 -486,613,000 -4,904,000 -1,447,000 -768,000                                                                 
          proceeds from sales of assets
        1,776,000 549,333,000 59,000 2,054,000 17,780,000 4,723,000 106,000 4,484,000                                                                     
          cash paid for settlement of contingent consideration arrangement
            -19,171,000                                                                     
          net cash from investing activities
        -226,469,000 67,730,000 -338,663,000 -209,909,000 -230,327,000 -332,944,000 -213,817,000 -221,939,000 -421,233,000 -237,780,000 -118,873,000 -98,514,000 -80,216,000 3,989,000 -199,290,000 -254,366,000 -124,128,000 -139,757,000 82,775,000 -207,279,000 -281,047,000 -674,725,000 -218,932,000 -149,353,000 -136,948,000 -129,143,000 -137,940,000 -668,501,000 -464,455,000 -66,159,000 -274,715,000 -60,958,000 -80,960,000 -47,679,000 -60,013,000 -70,508,000 -255,070,000 -72,479,000 -61,418,000 -63,534,000                                     
          cash flows from financing activities:
                                                                                    
          borrowings on credit facility
        883,500,000 1,105,000,000 855,000,000 669,500,000   1,051,000,000 673,000,000 904,000,000 500,000,000 433,500,000 303,000,000                      27,000,000 43,000,000 60,000,000    46,000,000                                     
          payments on credit facility
        -914,500,000 -1,237,000,000 -792,300,000 -707,200,000   -984,000,000 -746,000,000 -842,000,000 -652,000,000 -508,500,000 -338,000,000                      -3,000,000 -5,000,000 -58,000,000                                         
          issuance of 7.5% senior notes due 2030
                                                                                    
          redemption of 8.25% senior notes due 2025
                                                                                   
          redemption of 6.125% senior notes due 2024
                                                                                   
          redemption of 9.0% second lien senior secured notes due 2025
                                                                                    
          payment of deferred financing costs
        -362,000 -510,000 -8,000 -42,000 -10,275,000 -1,081,000        -301,000 -5,736,000 -275,000 -22,449,000   530,000 -1,296,000   -28,000 -401,000   -10,153,000       -12,000 -16,711,000 -140,000 -1,199,000 -1,729,000                                     
          cash paid to repurchase common stock
        -40,525,000                                                                            
          net cash from financing activities
        -71,928,000 -334,752,000 59,421,000 -38,029,000 -143,275,000 -144,081,000 -156,558,000 -65,063,000 61,106,000 -56,886,000 -77,280,000 -35,037,000 -44,626,000 -136,690,000 94,189,000 64,130,000 -11,418,000 21,322,000 -227,692,000 127,151,000 133,330,000 61,672,000 601,841,000 47,616,000 23,148,000 -2,290,000 198,688,000 -1,903,000 722,885,000 379,444,000 244,035,000 53,125,000 48,939,000 22,026,000 36,039,000 65,560,000 212,155,000 56,400,000 45,218,000 42,297,000                                     
          net change in cash and cash equivalents
        -131,000 -194,000 280,000 -25,000 -955,000 -1,750,000 1,950,000 -5,732,000 6,183,000 -101,000 -20,550,000 4,114,000 9,736,000 3,000,000 -7,300,000 1,459,000 2,032,000 -4,743,000 5,570,000 -5,569,000 3,922,000 -497,017,000 490,673,000 -9,522,000 -33,614,000 -77,540,000 103,876,000 -617,720,000 327,108,000 325,678,000 -9,304,000 8,287,000 -698,000 -106,000 -116,000 1,176,000 -6,225,000 6,021,000 -570,000 -1,270,000 2,143,000 -12,537,000 12,027,000 240,000 -346,000 1,372,000 -4,439,000 -3,784,000 -2,314,000 -12,062,000 -10,417,000 38,905,000                         
          balance, beginning of period
        3,395,000 9,882,000 20,236,000 13,341,000 16,051,000 27,995,000 652,993,000 1,224,000 968,000 3,012,000       3,635,000 17,126,000 53,250,000 1,896,000 2,565,000 3,266,000 8,700,000 
          balance, end of period
        -131,000 -194,000 280,000 3,370,000 -955,000 -1,750,000 1,950,000 4,150,000 6,183,000 -101,000 -20,550,000 24,350,000 9,736,000 3,000,000 -7,300,000 14,800,000 2,032,000 -4,743,000 5,570,000 10,482,000 3,922,000 -497,017,000 490,673,000 18,473,000 -33,614,000 -77,540,000 103,876,000 35,273,000 327,108,000 325,678,000 -9,304,000 9,511,000 -698,000 -106,000 -116,000 2,144,000 -6,225,000 6,021,000 -570,000 1,742,000       -4,439,000 -3,784,000 -2,314,000 -12,062,000 -10,417,000 42,229,000 2,573,000 327,000 84,000 651,000 -84,423,000 59,493,000 -256,000 42,312,000 50,075,000 -26,095,000 26,206,000 3,064,000 -1,050,000 1,900,000 -4,093,000 5,139,000 -23,232,000 7,074,000 15,828,000 2,895,000 -3,555,000 -23,617,000 27,047,000 3,391,000 
          gain on extinguishment of debt
                                                                                    
          deferred income tax benefit
          -152,864,000 -51,977,000                                                                         
          loss on extinguishment of debt
                                                                                    
          deposit for acquisition of oil and gas properties
                                                                                    
          cash paid for commodity derivative settlements
           -779,000  -145,596,000 -186,397,000 -101,525,000                                                                     
          impairment of evaluated oil and gas properties
                    585,767,000 684,956,000                                                               
          deferred income tax expense
            2,653,000        3,308,000   5,857,000     1,487,000 481,000 495,000   323,000 466,000        10,504,000 7,161,000 4,128,000 1,341,000 1,828,000 456,000   715,000 -246,000  2,510,000        -24,000  2,919,000 2,730,000 4,082,000 2,223,000 1,165,000 1,315,000 3,803,000 3,007,000 4,856,000 6,294,000 6,550,000 2,098,000 1,558,000 4,735,000 4,818,000     
          loss on derivative contracts
              81,648,000 358,300,000                                                                     
          issuance of senior notes
                                                                                    
          redemption of senior notes
                                                                                    
          issuance of 9.0% second lien senior secured notes due 2025
                                                                                    
          discount on the issuance of 9.0% second lien senior secured notes due 2025
                                                                                    
          issuance of september 2020 warrants
                                                                                    
          cash received for settlements of contingent consideration arrangements
             6,492,000                                                                     
          borrowings on prior credit facility
                                                                                    
          payments on prior credit facility
                                                                                    
          issuance of 7.50% senior notes due 2030
                                                                                   
          redemption of 9.00% second lien senior secured notes due 2025
                                                                                   
          redemption of 6.25% senior notes
                                                                                   
          issuance of 8.00% senior notes due 2028
                                                                                   
          cash received for settlement of contingent consideration arrangement
             8,512,000                                                                     
          cash paid for settlements of contingent consideration arrangements
                    -40,000,000                                                             
          issuance of 9.00% second lien senior secured notes due 2025
                                                                                   
          discount on the issuance of 9.00% second lien senior secured notes due 2025
                                                                                   
          payment to terminate prior credit facility
                                                                                    
          repayment of carrizo’s senior secured revolving credit facility
                                                                                    
          repayment of carrizo’s preferred stock
                                                                                    
          payment of preferred stock dividends
                        -350,000 -1,823,000 -1,824,000 -1,824,000 -1,824,000 -1,823,000 -1,824,000 -1,824,000 -1,824,000 -1,823,000 -1,824,000 -1,824,000 -1,824,000 -1,823,000 -1,824,000 -1,974,000 -1,974,000 -1,973,000 -1,974,000 -1,974,000 -1,974,000 -1,973,000 -1,974,000 -1,973,000 -1,974,000                                   
          payment of deferred financing and debt exchange costs
                                                                                    
          tax withholdings related to restricted stock units
                  -14,000 -107,000 -75,000 -313,000 -21,000 -316,000 -833,000 -1,025,000 -215,000 -1,029,000 -560,000 -65,000 -974,000 -79,000                                                 
          redemption of preferred stock
                                                                                   
          non-cash benefit related to share-based awards
                 -903,000 5,279,000 7,608,000                                                                 
          proceeds from sale of assets
                 3,804,000    139,739,000 -161,000 10,240,000  5,656,000 260,417,000 13,879,000  5,249,000                                                       
          (gain) loss on early extinguishment of debt
                                                                                    
          non-cash expense related to equity share-based awards
                    471,000 1,485,000 1,041,000 3,776,000 1,899,000 1,569,000 1,754,000 4,545,000 1,823,000 1,708,000 1,627,000 1,131,000 1,240,000 1,219,000 4,865,000 930,000 811,000 608,000 -1,253,000 392,000   -754,000 86,000 694,000 468,000 -1,032,000 996,000 757,000 601,000 154,000 580,000                                 
          change in the fair value of liability share-based awards
                    2,497,000 -1,579,000 1,720,000 -6,748,000 1,518,000 -925,000 -850,000 1,881,000 -1,053,000 879,000 -463,000 1,012,000 865,000 732,000 1,982,000 -291,000 908,000 3,371,000 1,965,000 709,000 1,853,000 64,000 1,607,000 3,088,000 -2,635,000 -1,499,000 4,587,000 3,483,000 1,827,000 1,928,000 -657,000 -195,000                                 
          payments for cash-settled restricted stock unit awards
                    -15,000 -1,000 -754,000 -129,000 -1,296,000                                                         
          acquisitions
                        -1,478,000 -1,418,000 -11,423,000 -27,947,000 -122,809,000 -550,592,000 -6,469,000 -38,923,000 -3,952,000 -8,015,000 -58,004,000 -648,485,000 -352,622,000 -18,033,000 -273,841,000 -10,183,000                                             
          issuance of 6.375% senior notes due 2026
                                                                                    
          issuance of common stock
                            -376,000 7,000       634,862,000 421,908,000 205,858,000 94,949,000 109,913,000 65,546,000 -64,000                              1,000 1,000 -3,000 -30,000   
          cash (paid) received for commodity derivative settlements
                     453,000 98,688,000 2,613,000                                                             
          loss on sale of other property and equipment
                          21,000 28,000                                                       
          payments to settle asset retirement obligations
                        -2,723,000 -654,000 -107,000 -664,000 -389,000 -507,000 -207,000 -366,000 -216,000 -250,000 -816,000 -765,000 -576,000 -576,000 -158,000 -161,000 -211,000 -1,142,000 -2,163,000 258,000 -525,000 -1,814,000 -1,443,000 -26,000 -20,000 -86,000 -219,000 -396,000 -178,000 -107,000 -135,000 -1,140,000 -1,275,000 -1,031,000                           
          current liabilities
                     6,148,000 -30,439,000 -83,688,000 99,476,000 23,216,000 -10,251,000 -26,003,000 9,510,000 47,740,000 4,123,000 12,938,000 23,413,000 1,854,000 -4,223,000 9,903,000 5,473,000 15,702,000 4,830,000 -717,000 1,546,000 906,000 5,904,000 -355,000 9,356,000 1,435,000 -3,141,000 5,155,000 1,614,000 2,293,000 -482,000 158,000 -3,212,000 209,000 -1,639,000 4,981,000 1,041,000 787,000 1,929,000 -2,850,000 -1,551,000 3,284,000 -9,379,000 -19,614,000 -3,052,000 22,557,000 3,734,000 -252,000 -2,953,000 -6,084,000 12,534,000 -5,554,000 5,907,000 -175,000 96,000 5,483,000 -9,463,000 5,929,000 -1,798,000 -3,334,000 5,200,000 -10,248,000 5,366,000 2,585,000 
          borrowings on senior secured revolving credit facility
                     312,000,000 484,500,000 4,291,000,000 1,874,900,000 221,000,000 140,000,000 220,000,000 230,000,000 105,000,000 85,000,000 80,000,000     74,000,000 98,000,000 45,000,000          17,000,000 14,000,000 17,000,000                                 
          payments on senior secured revolving credit facility
                     -737,000,000 -384,500,000 -4,226,000,000 -314,500,000 -126,000,000 -365,000,000 -90,000,000 -95,000,000 -40,000,000 -160,000,000 -30,000,000     -114,000,000 -58,000,000 -85,000,000                                            
          issuance of warrants
                                                                                    
          1.
                                                                                    
          2.
                                                                                    
          3.
                                                                                    
          4.
                                                                                    
          5.
                                                                                    
          6.
                                                                                    
          7.
                                                                                    
          8.
                                                                                    
          (gain) loss on sale of other property and equipment
                        -126,000    -64,000                                                        
          non-cash loss on early extinguishment of debt
                                                                                  
          acquisition deposit
                              -28,500,000 900,000 -900,000 46,138,000 -13,438,000                                                
          additions to other assets
                                                                                    
          issuance of 6.125% senior notes due 2024
                                                                                    
          premium on the issuance of 6.125% senior notes due 2024
                                                                                    
          adjustments to reconcile net income to cash from operating activities:
                                                                                    
          accretion expense
                         128,000 216,000 241,000 248,000 202,000 206,000 218,000 154,000 131,000 208,000 184,000 196,000 187,000 395,000 180,000 175,000 142,000 134,000 209,000 223,000 202,000 173,000 228,000 229,000 458,000 533,000 565,000 544,000 574,000 571,000 569,000 643,000 601,000 622,000 580,000 618,000 698,000 795,000 1,038,000 1,096,000 1,092,000 952,000 1,032,000 1,026,000 904,000 943,000 1,112,000 1,128,000 1,082,000 1,331,000 1,419,000 1,054,000 864,000 770,000 861,000 845,000 825,000 914,000 816,000 
          loss on derivatives, net of settlements
                                                                                    
          issuance of 6.375% senior unsecured notes due 2026
                                                                                  
          supplemental cash flow information:
                                                                                    
          interest paid, net of capitalized amounts
                                                                                    
          income taxes paid
                                                                                    
          cash paid for amounts included in the measurement of lease liabilities:
                                                                                    
          operating cash flows from operating leases
                         374,000                                                           
          investing cash flows from operating leases
                         7,590,000                                                           
          non-cash investing and financing activities:
                                                                                    
          change in accrued capital expenditures
                         1,254,000 -8,432,000 -7,854,000                                                         
          change in asset retirement costs
                           132,000                                                         
          right-of-use assets obtained in exchange for operating lease liabilities
                         126,000                                                           
          contingent consideration arrangement
                                                                                   
          (gain) loss on derivatives, net of settlements
                          -15,193,000 66,970,000                                                         
          other financing activities
                                                                                    
          non-cash investing activities:
                                                                                    
          operating leases
                           2,022,000                                                         
          net cash from operating activities:
                                                                                    
          cash paid for amounts included in the measurement of lease liabilities
                           9,565,000                                                         
          write-down of oil and natural gas properties
                                    61,012,000 34,776,000 121,134,000                                            
          other long-term liabilities
                            -6,065,000 5,500,000 200,000 87,000                                                     
          other assets
                            -832,000 -709,000 -182,000 -507,000                                                     
          payments on term loans
                                                                                    
          issuance of 6.125% senior unsecured notes due 2024
                                                                                  
          premium on the issuance of 6.125% senior unsecured notes due 2024
                                                                                  
          net (gain) loss on derivatives, net of settlements
                             25,102,000    12,947,000 -10,761,000 -17,794,000                                                 
          long-term prepaid
                                                                                    
          payments to settle vested liability share-based awards
                             -1,901,000 -3,089,000  -4,511,000 -8,662,000 -493,000 -9,807,000 -326,000 -3,599,000 -1,800,000 -1,669,000                                   
          net gain on derivatives, net of settlements
                               -3,978,000         -977,000    -21,922,000 -10,405,000 3,038,000 1,639,000                                     
          payments for cash-settled restricted stock unit awards related to early retirements related to early retirements
                                                                                    
          proceeds from sales of mineral interest and equipment
                                           272,000 987,000 -276,000 41,000 2,226,000                                     
          change in other long-term liabilities
                                 1,000   10,000 75,000 11,000 -20,000       -206,000   -115,000 -66,000 38,000 -602,000 618,000 1,534,000 1,180,000 -2,000 -4,000 -3,000 -2,000 -2,000 -3,000 -3,000 -215,000 211,000 5,000 -22,000 11,000 -11,000 4,000 -4,000 -4,000 -13,000 1,000 
          change in long-term prepaid
                                                                                    
          change in other assets
                                 -606,000 -247,000 -523,000 831,000 -1,221,000 -217,000 -233,000 -83,000 949,000 -209,000 -319,000 -81,000 -151,000 -190,000 -26,000 2,288,000 -1,310,000 -1,268,000 -522,000 -1,026,000 -46,000 -93,000 -127,000 -188,000 192,000 -437,000 -343,000 500,000 -342,000 -179,000 -10,000 -509,000 -247,000 -1,512,000 810,000 -935,000 2,794,000 -1,511,000 462,000 104,000 -1,988,000 -640,000 -64,000 69,000 -20,000 -268,000 -73,000 2,060,000 -418,000 -1,762,000 -328,000 
          proceeds from sales of mineral interests and equipment
                                     -708,000    22,000                                           
          amortization of deferred credit
                                            -54,000 -433,000 -716,000 -833,000 -816,000 -799,000 -782,000 -766,000 -794,000 -778,000 -947,000 -927,000 -907,000 -889,000                         
          gain on sale of other property and equipment
                                            -1,080,000                                     
          non-cash (gain) loss on early extinguishment of debt
                                                                                   
          payments to settle vested liability share-based awards related to early retirements
                                        -3,538,000                                         
          borrowings on term loans
                                                                                    
          redemption of 13% senior notes due 2016
                                                                                    
          net income on derivatives, net of settlements
                                     -1,044,000 19,501,000 8,648,000   13,215,000 7,914,000                                         
          changes in operating assets and liabilities:
                                                                                    
          equity in earnings of medusa spar llc
                                                -3,000   -21,000 -46,000 -56,000 -202,000 -211,000 -75,000 -143,000 -93,000 -116,000  -157,000 -218,000 -117,000  -60,000 -84,000 -113,000  -104,000 -138,000 -161,000             
          impairment of other property and equipment
                                                                                    
          non-cash gain on early debt extinguishment
                                            3,054,000                                        
          distribution from medusa spar llc
                                                197,000 276,000 340,000 312,000 303,000 160,000 510,000 316,000 406,000 345,000 473,000  395,000 412,000 574,000  281,000 108,000  129,000 244,000 186,000  479,000 370,000  198,000       
          redemption of 13% senior notes
                                                                                
          issuance of preferred stock
                                                -55,000                                   
          non-cash gain for early debt extinguishment
                                                                                    
          non-cash benefit related to equity share-based awards
                                                                                    
          deposit on acquisition
                                                                                    
          acquisition
                                                                                   
          borrowings on term loan
                                                                                    
          payments on term loan
                                                                                    
          taxes paid related to exercise of employee stock options
                                                                                    
          borrowings on debt
                                             50,000,000                                       
          payments on debt
                                             -114,000,000                     -16,000,000 -2,000,000 -35,000,000 -11,000,000 -2,000,000 -19,000,000 -23,000,000 -9,000,000 -4,000,000 -8,000,000 -3,000,000 -37,000,000 -46,000,000 -119,915,000 
          valuation allowance
                                                                                    
          gain on acquired equipment
                                                                                    
          change in natural gas balancing receivable
                                                228,000 -88,000 -55,000 -63,000 147,000 -1,000                               
          change in natural gas balancing payable
                                                -475,000 10,000 -72,000 10,000 50,000 -135,000                               
          proceeds from sale of mineral interests and equipment
                                                                                    
          investment in restricted assets related to plugging and abandonment
                                                        -38,000                            
          cash and cash equivalents:
                                                                                    
          non-cash gain on early extinguishment of debt
                                                                                   
          unrealized gain on derivative contracts
                                                 3,178,000 -1,288,000 1,039,000                                 
          cash from operating activities
                                                 14,977,000 7,362,000 12,875,000 9,905,000 13,944,000 21,238,000 26,971,000 17,698,000 8,240,000 18,336,000 55,668,000 9,358,000 14,944,000 -193,000 2,246,000 -31,543,000 60,866,000 28,778,000 35,131,000 19,363,000 19,764,000 37,287,000 32,869,000 28,761,000 31,381,000 34,326,000 41,016,000 -12,081,000 32,538,000 32,222,000 21,331,000     
          proceeds from sale of mineral interest and equipment
                                                 1,275,000 114,000  4,000  1,142,000                             
          cash from investing activities
                                                 -42,485,000 -37,745,000 -29,635,000 19,749,000 -42,556,000 -25,677,000 -30,755,000 -20,013,000 -20,256,000 -12,706,000 -6,763,000  -9,617,000 -4,723,000 -18,721,000                     
          cash from financing activities
                                                 14,971,000 42,410,000 17,000,000 -30,000,000 29,984,000 1,000 -46,000 -16,047,000 -10,000,000          10,000,000               
          beginning of period cash and cash equivalents
                                                 1,139,000                                
          end of period cash and cash equivalents
                                                 -12,537,000 12,027,000 1,379,000  1,372,000                               
          equity in loss (earnings) of medusa spar llc
                                                                                    
          adjustments to reconcile net income to
                                                                                    
          cash from operating activities:
                                                                                    
          gain on acquired assets
                                                                                   
          redemption of remaining 9.75% senior notes
                                                                                  
          less: cash held by subsidiary deconsolidated at january 1, 2010
                                                        -311,000                         
          non-cash gain on acquired assets
                                                                                    
          non-cash derivative income due to hedge ineffectiveness
                                                     282,000  -156,000                             
          non-cash unrealized gain on mark-to-market derivative instruments
                                                     1,598,000                               
          non-cash charge related to compensation plans
                                                     389,000 976,000 -117,000 751,000 307,000 1,406,000 643,000 388,000 763,000 615,000 569,000 524,000 -520,000 1,175,000 371,000 359,000 -235,000 384,000 341,000 702,000 451,000 152,000 115,000 345,000 -39,000 1,226,000 374,000 410,000 411,000 180,000 224,000 
          investment in restricted assets for plugging and abandonment
                                                       -37,000                             
          draw on senior secured credit facility
                                                     33,000,000                               
          payments on senior secured credit facility
                                                         -10,000,000  -5,000,000                       
          equity issued related to employee stock plans
                                                     -16,000           -19,000 -1,117,000 -16,000     -57,000 37,000 -418,000 -332,000 -87,000 -67,000 -87,000 -30,000 -11,000 147,000 93,000 
          gain on early extinguishment of debt
                                                                                    
          non-cash derivative (income) due to mark-to-market adjustment for derivatives not designated as accounting hedges
                                                                                    
          non-cash interest expense for callon entrada non-recourse credit agreement
                                                                                    
          non-cash (gain) charge for early debt extinguishment
                                                                                    
          proceeds from sale of mineral interests
                                                                                    
          increases in senior secured facility
                                                                                    
          payments on senior secured facility
                                                                                    
          proceeds from exercise of employee stock options
                                                        1,000 -46,000                           
          deferred income tax asset valuation allowance
                                                       -2,510,000                             
          changes in current assets and liabilities
                                                                                    
          change in gas balancing receivable
                                                       12,000 -23,000 85,000 329,000 -44,000 -175,000 299,000 -164,000 319,000 -176,000 74,000 -191,000 923,000 -778,000 -150,000 -22,000 12,000 -180,000 126,000 63,000 -320,000 308,000 -40,000 -34,000 88,000 -94,000 44,000 66,000 360,000 
          change in gas balancing payable
                                                       23,000 -8,000 -43,000 -336,000 87,000 -111,000 -78,000 -153,000 30,000 -200,000 -3,000 -198,000 557,000 325,000 127,000 315,000 122,000 -16,000 46,000 105,000 -2,000 -200,000 29,000 -50,000 -68,000 203,000   46,000 
          acquisition expenditures
                                                                                    
          non-cash derivative expense due to hedge ineffectiveness
                                                                                    
          proceeds from sale of mineral interest
                                                                                    
          non-cash charge for early debt extinguishment
                                                                                  
          excess tax benefits from share-based payment arrangements
                                                                -65,000 -550,000 -1,388,000 -47,000     -145,000 -109,000 -1,195,000         
          increases in debt
                                                                43,000,000   16,000,000 2,000,000 200,000,000 11,000,000             
          callon entrada non-recourse credit facility interest expense
                                                                                    
          borrowings from senior secured credit facility
                                                                                    
          investment in restricted assets related to plugging and abandonment obligations
                                                                                    
          mms bond for plugging and abandonment
                                                           -262,000                         
          amortization of deferred financing costs
                                                            271,000 770,000 750,000 731,000 1,877,000 728,000 707,000 873,000 856,000 839,000 745,000 569,000 554,000 561,000 560,000 546,000 533,000 531,000 508,000 490,000 478,000 466,000 490,000 495,000 
          non-cash interest expense for callon entrada credit agreement
                                                                                    
          equity in earnings of medusa spar, llc
                                                                                    
          exl acquisition
                                                                                    
          entrada acquisition
                                                                                  
          distribution from medusa spar, llc
                                                                               116,000 106,000    
          cash used by investing activities
                                                                   -46,100,000 40,549,000 -55,859,000 -168,835,000 -31,646,000 -45,748,000 -41,508,000 -40,508,000 -39,137,000 -15,691,000 -24,618,000 -16,210,000 -16,090,000     
          deferred financing costs
                                                                                  
          capital leases
                                                                    -817,000 -55,000 -63,000 -61,000 -57,000 -82,000 -128,000 -122,000 -118,000 -208,000 -385,000 -368,000 -352,000 -347,000 
          net increase in cash and cash equivalents
                                                                -84,423,000 59,493,000   50,075,000 -26,095,000 26,206,000 1,168,000  1,900,000 -4,093,000 2,574,000 -23,232,000    -3,555,000 -23,617,000 27,047,000 -5,309,000 
          non-cash derivative expense
                                                                        30,000 30,000 90,000 -3,457,000 4,180,000 533,000 379,000 -732,000    
          proceeds from senior secured credit facility
                                                                                   
          equity issued related to stock incentive plans
                                                                                    
          callon entrada non-recourse credit facility non-cash interest expense
                                                                                    
          net decrease in cash and cash equivalents
                                                              84,000 -16,475,000    -10,938,000           15,828,000 -371,000     
          change in accrued liabilities to be refinanced
                                                                        -7,000,000 7,000,000 -5,000,000         
          cash (used) provided by financing activities
                                                                                    
          proceeds from sale of entrada working interest
                                                                                    
          cash from (used) in investing activities
                                                                                    
          cash (used) in provided by financing activities
                                                                                    
          cash provided (used) by financing activities
                                                                   31,000    -55,000 15,937,000 12,027,000 2,089,000 695,000     1,465,000 -30,926,000 26,556,000 -9,127,000 
          buyout of preferred stock
                                                                                   
          cash dividends on preferred stock
                                                                            -318,000 -317,000 -317,000 -319,000 -319,000 
          performance deposit for entrada acquisition
                                                                       -7,500,000             
          non-cash loss on extinguishment of debt
                                                                                532,000 2,378,000 
          accounts receivable, trade
                                                                                    
          restricted cash
                                                                                63,345,000 
          debt issuance cost
                                                                                -984,000 
          income from investment in medusa spar llc
                                                                         -344,000 -439,000 -530,000  -247,000     -334,000 -148,000 
          increase in debt
                                                                         24,000,000 25,000,000 14,000,000 4,000,000 3,000,000 8,000,000 4,000,000 29,000,000 49,000,000 
          income from investment in medusa spar, llc
                                                                               -526,000 -308,000    
          cumulative effect of change in accounting principle
                                                                                    
          proceeds from sale of pipeline and other facilities
                                                                                    
          cash used by financing activities
                                                                            4,540,000 -846,000 -184,000 -5,612,000     
          cash and short-term investments:
                                                                                    
          change in accounts payable and accrued liabilities to be refinanced
                                                                                    
          amortization of deferred production payment revenue
                                                                                    
          non-cash derivative income
                                                                                    
          gain on sale of pipeline
                                                                                    
          investment in derivative contracts
                                                                                    
          cash provided (used) by operating activities
                                                                                16,239,000 14,905,000 21,861,000 17,903,000 
          cash provided (used) by investing activities
                                                                                -21,259,000 -7,596,000 -21,370,000 -14,085,000 
          change in accounts payable and accrued liability to be refinanced
                                                                                    
          non-cash mark-to-market commodity derivative contracts