7Baggers

SilverBow Resources, Inc
(NYSE:SBOW) 

SBOW stock logo

SilverBow Resources, Inc., an oil and gas company, acquires and develops assets in the Eagle Ford shale located in South Texas. As of December 31, 2020, it had proved reserves of 1,106 billion cubic feet of natural gas equivalent. The company was formerly known as Swift Energy Company and changed it...

Founded: 1979
Full Time Employees: 86
Sector: Energy
Industry: Oil & Gas E&P

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Quarterly
Annual
    Unit: USD2024-03-31 2023-12-31 2023-09-30 2023-06-30 2023-03-31 2022-12-31 2022-09-30 2022-06-30 2022-03-31 2021-12-31 2021-09-30 2021-06-30 2021-03-31 2020-12-31 2020-09-30 2020-06-30 2020-03-31 2019-12-31 2019-09-30 2019-06-30 2019-03-31 2018-12-31 2018-09-30 2018-06-30 2018-03-31 2017-12-31 2017-09-30 2017-06-30 2017-03-31 2016-09-30 2016-04-23 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 2010-12-31 2010-03-31 2009-12-31 2009-03-31 2008-12-31 2008-03-31 2007-12-31 2005-12-31 
                                                               
      revenues
    256,680,000                                                           
      operating expenses:
                                                               
      general and administrative
    8,791,000  4,438,000 5,318,000 7,664,000  4,343,000 5,710,000 4,786,000  5,257,000 4,834,000 4,782,000  5,833,000 6,180,000 5,913,000  6,247,000 6,624,000 6,276,000  5,486,000 5,794,000 5,576,000  6,031,000 6,811,000 9,834,000 11,691,000 14,420,000 8,118,000 11,086,000 8,679,000 10,290,000 12,556,000 6,064,000 10,981,000 12,412,000 10,739,000 10,740,000 11,146,000 11,191,000 12,725,000 10,753,000 11,952,000 12,190,000 11,883,000 12,675,000 11,378,000 10,866,000 27,108,000 9,251,000 25,627,000 8,419,000 28,754,000 9,919,000   
      depreciation, depletion, and amortization
    92,103,000  53,186,000 49,853,000 43,998,000  41,501,000 26,441,000 21,154,000  16,054,000 16,039,000 13,393,000  13,975,000 13,716,000 23,439,000  24,937,000 24,029,000 21,805,000  18,766,000 13,096,000 13,131,000  11,832,000 10,828,000 9,715,000 13,287,000 19,191,000 17,245,000 39,120,000 35,606,000 42,088,000 60,698,000 66,518,000 65,331,000 72,205,000 61,685,000 65,517,000 66,948,000 59,458,000 60,120,000 65,540,000 58,987,000 61,288,000 61,363,000 58,089,000 54,404,000 55,816,000 124,298,000 38,274,000 122,174,000 43,934,000 169,794,000 52,494,000   
      accretion of asset retirement obligations
    316,000  254,000 240,000 224,000  166,000 101,000 99,000  77,000 74,000 75,000  90,000 88,000 86,000  88,000 86,000 83,000  87,000 84,000 159,000  582,000 576,000 564,000                               
      lease operating expenses
    31,825,000  22,678,000 19,180,000 20,560,000  17,701,000 10,270,000 9,125,000  6,978,000 5,515,000                                                
      workovers
    610,000  672,000 811,000 779,000  284,000 2,000 647,000  423,000 76,000 13,000  8,000    93,000 -127,000 646,000                                       
      transportation and gas processing
    35,199,000  13,710,000 11,771,000 11,520,000  9,662,000 6,769,000 6,352,000  5,913,000 6,206,000 5,056,000  5,094,000 4,554,000 6,643,000  6,782,000 6,728,000 6,406,000  6,138,000 5,421,000 5,025,000  4,921,000 4,761,000 4,385,000 4,883,000 7,983,000 5,055,000 5,886,000 5,446,000 5,086,000 5,323,000 4,728,000 5,107,000 6,013,000 5,292,000 5,658,000 5,783,000 4,865,000 6,030,000                
      severance and other taxes
    16,212,000  10,407,000 8,771,000 9,385,000  12,581,000 9,838,000 7,764,000  4,908,000 3,577,000 3,489,000  2,512,000 2,037,000 2,964,000  3,778,000 3,950,000 3,316,000  2,464,000 2,662,000 3,031,000  2,479,000 2,280,000 1,618,000 2,683,000 4,381,000 2,332,000 2,921,000 4,613,000 4,424,000 5,132,000 8,209,000 10,191,000 9,436,000 9,202,000 10,281,000 11,695,000 10,501,000 9,775,000 13,022,000 10,680,000 12,200,000 12,960,000 13,285,000 13,527,000 12,383,000 34,296,000 11,572,000 32,640,000 8,686,000 58,267,000 22,136,000   
      total operating expenses
    185,056,000  105,345,000 95,944,000 94,130,000  86,238,000 59,131,000 49,927,000  39,610,000 36,321,000 33,082,000  32,723,000 291,917,000 140,463,000  47,432,000 46,325,000 43,063,000  37,148,000 30,817,000 31,883,000  31,676,000 30,032,000                                
      operating income
    71,624,000  68,618,000 30,456,000 45,824,000  155,943,000 123,474,000 79,729,000  59,639,000 33,540,000 53,659,000  12,976,000 -267,071,000 -87,086,000  24,582,000 28,378,000 29,001,000  27,886,000 20,530,000 20,869,000  17,343,000 15,750,000                                
      yoy
    56.30%  -56.00% -75.33% -42.53%  161.48% 268.14% 48.58%  359.61% -112.56% -161.62%  -47.21% -1041.12% -400.29%  -11.85% 38.23% 38.97%  60.79% 30.35%                                    
      qoq
      125.30% -33.54%   26.30% 54.87%   77.81% -37.49%   -104.86% 206.68%   -13.38% -2.15%   35.83% -1.62%   10.11%                                 
      operating margin %
    Infinity% NaN% Infinity% Infinity% Infinity% NaN% Infinity% Infinity% Infinity% NaN% Infinity% Infinity% Infinity% NaN% Infinity% -Infinity% -Infinity% NaN% Infinity% Infinity% Infinity% NaN% Infinity% Infinity% Infinity% NaN% Infinity% Infinity% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% NaN% NaN% NaN% NaN% NaN% NaN%   
      non-operating income
                                                               
      gain on commodity derivatives
    -56,078,000  -54,639,000 19,993,000 92,249,000  4,832,000 -22,406,000 -140,242,000  -88,554,000 -46,067,000 -18,259,000  -12,944,000 -8,458,000 88,287,000  13,409,000 24,925,000 -4,022,000  -13,600,000 -10,752,000 -6,355,000                                   
      interest expense
    -36,017,000  -19,811,000 -18,190,000 -16,745,000  -12,173,000 -7,902,000 -6,557,000  -7,433,000 -7,436,000 -7,019,000  -7,444,000 -8,026,000 -8,407,000  -9,435,000 -9,306,000 -8,759,000  -7,212,000 -6,585,000 -5,890,000  -2,868,000 -4,642,000 3,607,000 5,880,000 7,244,000 8,066,000 19,463,000 19,438,000 18,741,000 18,228,000 17,912,000 18,197,000 18,649,000 18,449,000 18,085,000 17,495,000 17,000,000 16,802,000 16,757,000 13,762,000 13,319,000 13,465,000 10,117,000 8,439,000 8,622,000 25,111,000 8,326,000 23,196,000 7,467,000 22,389,000 8,690,000   
      other income
    156,000  112,000 29,000 -24,000  5,000 -10,000 61,000  -3,000 12,000 -1,000  -56,000 -1,000 107,000  134,000 -28,000 65,000  226,000 -546,000 -158,000  12,000 1,000                                
      income before income taxes
    -20,315,000  -5,720,000 32,288,000 121,304,000  148,607,000 93,156,000 -67,009,000  -36,351,000 -19,951,000 28,380,000  -7,468,000 -283,556,000 -7,099,000  28,690,000 43,969,000 16,285,000  7,300,000 2,647,000 8,466,000  12,884,000 16,241,000 17,710,000 394,000 -47,985,000 -108,303,000 -529,849,000 -354,588,000 -293,509,000 -556,568,000 -462,413,000 5,475,000 13,659,000 11,661,000 9,494,750 15,378,000 11,015,000 11,586,000                
      benefit for income taxes
    -4,787,000  -949,000 7,351,000 26,812,000  6,066,000 4,366,000 -2,754,000  -408,000    -572,000 22,420,000 -1,241,000  1,039,000 -20,735,000 232,000  220,000 328,000         -410,000  -642,000 -79,491,000                        
      net income
    -15,528,000  -4,771,000 24,937,000 94,492,000  142,541,000 88,790,000 -64,255,000  -35,943,000 -19,951,000 28,380,000  -6,896,000 -305,976,000 -5,858,000  27,651,000 64,704,000 16,053,000  7,080,000 2,319,000 8,466,000  12,884,000 16,241,000 17,710,000 394,000 -47,985,000 -108,303,000 -529,439,000 -354,588,000 -292,867,000 -477,077,000 -298,170,000 2,474,000 8,038,000 5,413,000 -41,849,000 8,886,000 6,722,000 7,209,000 11,219,000 3,122,000 3,028,000 3,570,000 20,636,000 16,976,000 41,028,000 32,089,000 14,205,000 19,799,000 -59,129,000 -308,851,000 48,361,000   
      yoy
    -116.43%  -103.35% -71.91% -247.06%  -496.58% -545.04% -326.41%  421.22% -93.48% -584.47%  -124.94% -572.89% -136.49%  290.55% 2690.17% 89.62%  -45.05% -85.72% -52.20%  -126.85% -115.00% -103.35% -100.11% -83.62% -77.30% 77.56% -14432.58% -3743.53% -8913.54% 612.49% -72.16% 19.58% -24.91% -473.02% 184.63% 121.99% 101.93% -45.63% -81.61% -92.62% -88.87% 45.27% -14.26% -169.39% -110.39% -70.63%       
      qoq
      -119.13% -73.61%   60.54% -238.18%   80.16% -170.30%   -97.75% 5123.22%   -57.27% 303.06%   205.30% -72.61%   -20.67% -8.29% 4394.92% -100.82% -55.69% -79.54% 49.31% 21.07% -38.61% 60.00% -12152.14% -69.22% 48.49% -112.93% -570.95% 32.19% -6.76% -35.74% 259.35% 3.10% -15.18% -82.70% 21.56% -58.62% 27.86% 125.90% -28.25% -133.48% -80.86% -738.64%    
      net income margin %
    -Infinity% NaN% -Infinity% Infinity% Infinity% NaN% Infinity% Infinity% -Infinity% NaN% -Infinity% -Infinity% Infinity% NaN% -Infinity% -Infinity% -Infinity% NaN% Infinity% Infinity% Infinity% NaN% Infinity% Infinity% Infinity% NaN% Infinity% Infinity% 33.29% 0.78% -71.34% -316.01% -1056.79% -589.84% -442.60% -698.12% -269.87% 1.78% 5.16% 3.77% -28.66% 5.81% 4.72% 4.93% 7.10% 2.42% 2.25% 2.63% 13.31% 11.91% 26.06% Infinity% Infinity% Infinity% -Infinity% -Infinity% Infinity%   
      per share amounts:
                                                               
      basic earnings per share
    -0.61  -0.21 1.1 4.21  6.39 5.05 -3.84  -2.85 -1.64 2.36                                               
      diluted earnings per share
    -0.61  -0.21 1.1 4.17  6.29 4.95 -3.84  -2.85 -1.64 2.31                                               
      weighted-average shares outstanding - basic
    25,445 23,371 22,985 22,615 22,440 19,748 22,308 17,581 16,719 13,118 12,629 12,190 12,029 11,902 11,935 11,910 11,825 11,753 11,762 11,746 11,708 11,655 11,671 11,655 11,602 11,453 11,531 11,487 11,232 10,000 10,013 44,672 44,463 44,546 44,516 44,232 43,795 43,850 43,826 43,628 43,331 43,389 43,369 43,167 42,840 42,901 42,862 42,674  42,470 42,436         
      weighted-average shares outstanding - diluted
    25,445 23,571 22,985 22,674 22,634 20,097 22,669 17,938 16,719 13,520 12,629 12,190 12,294 11,902 11,935 11,910 11,825 11,778 11,780 11,780 11,788 11,764 11,792 11,757 11,727 11,514 11,545 11,554 11,323 10,361 10,013 44,672 44,463 44,546 44,516 44,232 43,795 44,473 44,312 44,118 43,331 43,704 43,612 43,323 42,930               
      see accompanying notes to condensed consolidated financial statements.
                                                               
      revenues:
                                                               
      oil and gas sales
      173,963,000 126,400,000 139,954,000  242,181,000 182,605,000 129,656,000  99,249,000 69,861,000 86,741,000  45,699,000 24,846,000 53,377,000  72,014,000 74,703,000 72,064,000  65,034,000 51,347,000 52,752,000  49,019,000 45,782,000 42,412,000 47,959,000 87,019,000 34,367,000 50,607,000 60,024,000 68,281,000 67,358,000 106,350,000 133,896,000 158,214,000 148,558,000 146,123,000 155,049,000 140,892,000 146,477,000 158,126,000 127,946,000 131,980,000 136,142,000 155,804,000 143,123,000 159,213,000 326,607,000 110,025,000 295,331,000 76,418,000 593,886,000 199,973,000   
      write-down of oil and gas properties
                   260,342,000 95,606,000              55,764,000 77,732,000 477,491,000 321,522,000 260,504,000 502,569,000                   79,312,000     
      lease operating costs
                6,274,000  5,211,000 5,000,000 5,812,000  5,507,000 5,035,000 4,531,000  4,207,000 3,760,000 4,961,000  5,831,000 4,776,000 5,773,000 9,481,000                              
      per share amounts
                                                               
      basic: net income
                  -0.58 -25.69 -0.5  2.35 5.51 1.37  0.61 0.2 0.73  1.12 1.41 1.58 0.04 -13.19 -2.42 -11.89 -7.96 -6.58 -10.79 -6.81 0.06 0.18 0.12 0.133 0.2 0.15 0.16                
      diluted: net income
                  -0.58 -25.69 -0.5  2.35 5.49 1.36  0.6 0.2 0.72  1.12 1.41 1.57 0.04 -13.19 -2.42 -11.89 -7.96 -6.58 -10.79 -6.8 0.06 0.18 0.12 0.13 0.2 0.15 0.16                
      per share amounts-
                                                               
      net gain on commodity derivatives
                              -1,603,000 5,132,000                                
      reorganization items
                                  -8,790,000 10,429,000                            
      price-risk management and other
                                10,794,000 2,632,000 -19,754,000 -95,000 -508,000 92,000 -2,112,000 979,000 4,138,000 4,898,000 -2,493,000 -4,877,000 -114,000 -2,048,000 1,574,000 -240,000 -221,000 804,000 2,777,000 -264,000 -711,000 -591,000 -1,785,000 1,976,000 -179,000 -1,245,000 -59,000 27,969,000 -1,013,000   
      total revenues
                                53,206,000 50,591,000 67,265,000 34,272,000 50,099,000 60,116,000 66,169,000 68,337,000 110,488,000 138,794,000 155,721,000 143,681,000 146,009,000 153,001,000 142,466,000 146,237,000 157,905,000 128,750,000 134,757,000 135,878,000 155,093,000 142,532,000 157,428,000         
      yoy
                                6.20% -15.84% 1.66% -49.85% -54.66% -56.69% -57.51% -52.44% -24.33% -9.29% 9.30% -1.75% -7.53% 18.84% 5.72% 7.62% 1.81% -9.67% -14.40%             
      qoq
                                5.17% -24.79% 96.27% -31.59% -16.66% -9.15% -3.17% -38.15% -20.39% -10.87% 8.38% -1.59% -4.57% 7.39% -2.58% -7.39% 22.64% -4.46% -0.83% -12.39% 8.81% -9.46%          
      costs and expenses:
                                                               
      total costs and expenses
                                35,496,000 50,197,000 115,250,000 142,575,000 579,948,000 414,704,000 359,678,000 624,905,000 572,901,000 133,319,000 142,062,000 132,020,000 209,793,000 137,623,000 131,451,000 134,651,000 137,868,000 123,206,000 129,642,000 129,996,000 121,749,000 115,137,000 115,556,000         
      accretion of asset retirement obligation
                                 1,099,000 1,587,000 1,291,000 1,416,000 1,410,000 1,381,000 1,365,000 1,466,000 1,445,000 1,415,000 1,386,000 1,449,000 1,478,000 1,479,000 1,775,000 1,656,000 1,191,000 1,162,000 1,112,000 1,088,000 1,183,000 1,163,000 3,002,000 954,000 2,204,000 702,000 1,504,000 454,000   
      loss on reorganization items
                                 1,193,000                              
      lease operating cost
                                  3,076,750 12,307,000 16,000,000 17,990,000 17,164,000 19,034,000 22,608,000 22,067,000 21,932,000 25,267,000 24,152,000 23,078,000 26,957,000 27,424,000 30,140,000 26,634,000 29,483,000 29,213,000 26,495,000 26,206,000 26,706,000 63,281,000 18,648,000 56,932,000 19,808,000 78,449,000 26,425,000   
      benefit from income taxes
                                        3,550,000 3,001,000 5,621,000 6,248,000 3,790,500 6,492,000 4,293,000 4,377,000 8,818,000 2,422,000 2,087,000 2,312,000 9,455,500 10,388,000 15,190,000 2,145,250 8,581,000 -8,241,500 -32,966,000 7,251,750 29,007,000   
      income from continuing operations before income taxes
                                                20,037,000 5,544,000 5,115,000 5,882,000 33,344,000 27,395,000 41,872,000 51,487,000 22,821,000 27,352,000 -91,969,000 -491,600,000 78,842,000   
      income from continuing operations
                                                11,219,000 3,122,000 3,028,000 3,570,000 20,672,000 17,007,000 26,682,000 32,235,000 14,240,000 19,927,000 -59,003,000 -306,965,000 49,835,000   
      income from discontinued operations, net of taxes
                                                    -36,000 -31,000 14,346,000 -146,000 -35,000 -128,000 -126,000 -1,886,000 -1,474,000   
      basic: income from continuing operations
                                                0.26 0.07 0.07 0.08 0.48 0.39 0.62 0.82 0.37 0.74 -1.9 -10.03 1.64   
      diluted: income from continuing operations
                                                0.26 0.07 0.07 0.08 0.48 0.39 0.61 0.81 0.37 0.74 -1.9 -10 1.61   
      gain from discontinued operations, net of taxes
                                                               
      weighted-average shares outstanding
                                                    42,394   38,300 37,652 33,594 31,031 30,661 30,347   
      see accompanying notes to consolidated financial statements.
                                                               
    Balance Sheets:
    Quarterly
    Annual
      Unit: USD2024-03-31 2023-12-31 2023-09-30 2023-06-30 2023-03-31 2022-12-31 2022-09-30 2022-06-30 2022-03-31 2021-12-31 2021-09-30 2021-06-30 2021-03-31 2020-12-31 2020-09-30 2020-06-30 2020-03-31 2019-12-31 2019-09-30 2019-06-30 2019-03-31 2018-12-31 2018-09-30 2018-06-30 2018-03-31 2017-12-31 2017-09-30 2017-06-30 2017-03-31 2016-12-31 2016-09-30 2016-06-30 2016-03-31 2015-12-31 2015-09-30 2015-06-30 2015-03-31 2014-12-31 2014-06-30 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 2006-06-30 2005-12-31 
                                                                            
        assets
                                                                            
        current assets:
                                                                            
        cash and cash equivalents
      1,446,000 969,000 1,697,000 1,102,000 2,167,000 792,000 1,924,000 9,408,000 1,645,000 1,121,000 988,000 2,063,000 3,419,000 2,118,000 1,222,000 6,610,000 35,598,000 1,358,000 2,850,000 3,333,000 876,000 2,465,000 4,542,000 6,611,000 237,000 7,806,000 12,861,000 6,627,000 168,000 303,000 2,447,000 4,294,000 17,782,000 29,460,000 7,322,000 75,000 311,000 406,000 564,000 91,000 3,277,000 3,277,000 11,338,000 248,000 170,000 1,650,000 31,671,000 126,789,000  15,999,000 32,298,000 19,764,000  5,508,000 43,484,000 39,101,000  154,000 231,000 3,534,000  8,801,000 13,147,000 10,156,000  11,711,000 7,216,000 2,963,000 72,073,575 53,004,562 
        accounts receivable
      125,459,000 138,343,000 80,202,000 64,587,000 63,940,000 89,714,000 102,691,000 110,093,000 46,095,000 49,777,000 44,190,000 25,957,000 26,075,000 25,850,000 28,884,000 23,572,000 30,345,000 36,996,000 34,633,000 34,760,000 31,342,000 46,472,000 31,066,000 22,057,000 21,133,000 27,263,000 22,222,000 18,956,000 19,889,000 17,490,000 21,343,000 22,049,000 18,537,000 21,704,000 36,610,000 39,410,000 49,640,000 48,451,000 68,615,000 73,082,000 70,897,000 70,897,000 64,517,000 73,209,000 67,318,000 49,994,000 51,878,000 61,199,000  45,100,000 50,146,000 65,443,000  38,109,000 40,022,000                
        fair value of commodity derivatives
      89,535,000 116,549,000 50,189,000 72,590,000 79,979,000 52,549,000 33,205,000 10,094,000 1,679,000 2,806,000 668,000 736,000 1,958,000 4,821,000 11,850,000 20,822,000 38,817,000 12,833,000 20,604,000 21,738,000 8,346,000 15,261,000 2,584,000 1,775,000 2,704,000 5,148,000                                             
        other current assets
      5,652,000 5,590,000 3,825,000 3,935,000 2,672,000 2,671,000 6,468,000 7,201,000 2,164,000 1,875,000 4,016,000 3,055,000 2,388,000 2,184,000 2,628,000 3,028,000 2,846,000 2,121,000 2,683,000 3,241,000 3,110,000 2,126,000 2,928,000 3,090,000 2,877,000 2,352,000 5,155,000 6,623,000 3,282,000 3,686,000 3,247,000 4,078,000 4,098,000 10,683,000 4,299,000 5,315,000 8,006,000 9,569,000 21,033,000 10,081,000 7,600,000 7,600,000 10,169,000 8,085,000 7,370,000 5,873,000 10,041,000 9,437,000  10,712,000 14,842,000 20,253,000  16,086,000 18,514,000 17,956,000  18,035,000 24,171,000 26,886  28,320,000 20,310,000 11,673,000  46,466,000 25,448,000 24,366,000 17,980,159 11,655,046 
        total current assets
      222,092,000 261,451,000 135,913,000 142,214,000 148,758,000 145,726,000 144,288,000 136,796,000 51,583,000 55,579,000 49,862,000 31,811,000 33,840,000 34,973,000 44,584,000 54,032,000 107,606,000 53,308,000 60,770,000 63,072,000 43,674,000 66,324,000 41,120,000 33,533,000 26,951,000 42,569,000 40,238,000 32,206,000 23,339,000 21,479,000 27,037,000 30,421,000 40,417,000 61,847,000 48,231,000 45,312,000 60,936,000 64,669,000 95,041,000 88,826,000 86,748,000 92,489,000 88,839,000 84,299,000 80,537,000 62,381,000 97,793,000 200,025,000  76,637,000 100,596,000 108,070,000  66,475,000 107,052,000 109,438,000  69,156,000 72,686,000 82,331,000  88,087,000 146,807,000 202,927,000  118,896,000 96,261,000 94,928,000 167,463,385 115,055,135 
        property and equipment:
                                                                            
        property and equipment, full cost method, including 30,899 and 28,375, respectively, of unproved property costs not being amortized at the end of each period
      3,709,469,000                                                                      
        less – accumulated depreciation, depletion, amortization & impairment
      -1,315,364,000  -1,151,141,000 -1,097,935,000 -1,048,062,000  -959,139,000 -917,619,000 -891,158,000  -846,822,000 -830,749,000 -814,691,000  -787,830,000 -773,836,000 -499,759,000  -355,574,000 -330,638,000 -306,609,000  -261,763,000 -242,997,000 -229,901,000  -202,211,000 -190,379,000 -179,551,000  -160,117,000 -146,830,000                                       
        property and equipment
      2,394,105,000 2,373,919,000 1,710,126,000 1,658,759,000 1,590,654,000 1,525,179,000 1,386,178,000 1,282,984,000 760,339,000 741,968,000 629,764,000 571,453,000 561,270,000 542,094,000 535,959,000 529,715,000 798,694,000 866,989,000 838,097,000 813,579,000 767,844,000 701,296,000 629,945,000 553,055,000 493,927,000 495,397,000 466,187,000 417,779,000 370,166,000 347,195,000 409,208,000 415,293,000 387,106,000 457,903,000 962,576,000 1,287,572,000 1,556,380,000 2,095,037,000 2,614,465,000 2,576,862,000 2,539,646,000 2,588,817,000 2,523,091,000 2,428,970,000 2,345,020,000 5,046,268,000 4,845,484,000 4,648,687,000  4,376,222,000 4,201,003,000 4,084,463,000  1,467,369,000 1,397,083,000                
        right of use assets
      20,658,000 12,888,000 10,085,000 9,435,000 10,229,000 12,077,000 13,669,000 16,705,000 16,163,000 16,065,000 15,787,000 16,609,000 3,409,000 4,366,000 6,093,000 7,586,000 7,839,000 9,374,000 10,443,000 12,568,000 2,024,000                                                  
        fair value of long-term commodity derivatives
      29,432,000 55,114,000 14,180,000 21,903,000 26,645,000 24,172,000 27,410,000 5,829,000 76,000 201,000 18,000 1,000 769,000 281,000 2,291,000 4,679,000 8,867,000 3,854,000 7,051,000 5,910,000 4,024,000 4,333,000 2,624,000 3,332,000                                               
        other long-term assets
      28,876,000 31,090,000 7,581,000 8,159,000 8,646,000 9,208,000 18,368,000 10,041,000 3,629,000 5,641,000 2,904,000 3,069,000 1,162,000 1,421,000 1,752,000 2,022,000 2,770,000 3,622,000 4,558,000 4,895,000 5,231,000 5,567,000 6,535,000 7,076,000 13,517,000 13,304,000 9,905,000 10,161,000 8,394,000 8,625,000 9,203,000 9,841,000 5,751,000 5,248,000 13,471,000 14,144,000 13,039,000 13,641,000 15,030,000 15,585,000 17,199,000 17,199,000 17,988,000 17,930,000 18,504,000 14,803,000 15,290,000 15,752,000  12,222,000 12,613,000 12,340,000  13,079,000 9,710,000 1,337,000               
        total assets
      2,695,163,000 2,734,462,000 1,930,449,000 1,840,470,000 1,784,932,000 1,716,362,000 1,589,913,000 1,452,355,000 831,790,000 819,454,000 698,335,000 622,943,000 600,450,000 583,135,000 590,679,000 598,034,000 949,209,000 959,816,000 941,346,000 921,188,000 822,797,000 777,520,000 680,224,000 596,996,000 534,395,000 551,270,000 516,330,000 460,146,000 401,899,000 377,299,000 445,448,000 455,555,000 433,274,000 524,998,000 1,024,278,000 1,347,028,000 1,630,355,000 2,173,347,000 2,724,536,000 2,681,273,000 2,643,593,000 2,698,505,000 2,629,918,000 2,531,199,000 2,444,061,000 2,341,487,000 2,236,021,000 2,203,625,000 2,212,469,000 1,924,468,000 1,826,399,000 1,773,261,000 1,746,375,000 1,546,923,000 1,513,845,000  1,434,765,000    1,517,288,000    1,969,051,000      
        liabilities and stockholders’ equity
                                                                            
        current liabilities:
                                                                            
        accounts payable and accrued liabilities
      143,684,000 98,816,000 74,731,000 60,143,000 51,599,000 60,200,000 80,107,000 78,778,000 41,909,000 35,034,000 38,000,000 23,887,000 20,601,000 26,991,000 22,707,000 15,800,000 36,159,000 39,343,000 38,951,000 33,320,000 31,978,000 48,921,000 48,108,000 35,350,000 32,289,000 44,437,000 41,998,000 41,820,000 47,555,000 56,257,000 33,394,000 48,696,000 60,626,000 7,663,000 49,116,000 45,586,000 73,549,000 68,244,000 104,523,000 81,182,000 83,361,000 82,318,000 88,419,000 69,656,000 75,378,000 99,606,000 89,403,000 78,798,000  90,751,000 52,212,000 70,849,000  71,144,000 62,748,000 60,272,000  54,966,000 53,477,000 53,852,000  84,143,000 91,130,000 78,793,000  67,212,000 60,567,000 60,707,000 45,818,560 51,973,004 
        deferred acquisition liability
      50,000,000 50,000,000                                                                     
        accrued capital costs
      42,114,000 31,900,000 56,424,000 44,047,000 45,264,000 56,465,000 54,210,000 24,166,000 11,128,000 7,354,000 20,482,000 12,114,000 6,611,000 7,324,000 4,915,000 5,436,000 12,104,000 17,889,000 10,655,000 28,166,000 46,992,000 38,073,000 51,930,000 41,821,000 20,445,000 10,883,000 19,721,000 18,164,000 11,899,000 11,954,000 4,295,000 8,262,000 9,676,000  19,509,000 13,772,000 13,266,000 41,461,000 49,870,000 56,533,000 61,164,000 61,164,000 104,791,000 90,042,000 73,190,000 82,187,000 102,268,000 95,566,000  82,593,000 75,563,000 68,967,000  52,421,000 47,236,000 31,273,000  22,087,000 15,898,000 48,397,000  91,650,000 86,291,000 72,117,000  60,925,000 57,542,000 41,478,000 42,054,613 30,073,728 
        current portion of long-term debt
      37,500,000 28,125,000                               339,900,000 324,900,000                                     
        accrued interest
      8,325,000 9,668,000 2,976,000 2,755,000 2,225,000 2,665,000 2,385,000 1,420,000 862,000 697,000 846,000 955,000 1,052,000 983,000 892,000 1,257,000 1,186,000 1,397,000 1,157,000 1,333,000 1,413,000 1,513,000 2,304,000 2,597,000 2,298,000 2,106,000 1,635,000 1,631,000 1,367,000 1,721,000 1,704,000 1,236,000 475,000 490,000 13,783,000 21,497,000 13,069,000 21,389,000 21,505,000 13,140,000 21,561,000 21,561,000 21,438,000 13,059,000 21,362,000 12,016,000 17,322,000 11,865,000  10,223,000 10,760,000 10,225,000  10,139,000 10,982,000 10,439,000  8,594,000 7,182,000 8,725,000  8,754,000 7,198,000 9,095,000  8,577,000 6,867,000 10,692,000 8,506,805 8,508,196 
        current lease liability
      7,765,000 4,001,000 5,507,000 5,966,000 7,165,000 8,553,000 8,579,000 9,188,000 7,998,000 7,222,000 6,292,000 6,029,000 2,292,000 3,473,000 4,807,000 5,972,000 6,622,000 6,707,000 6,386,000 7,006,000 860,000                                                  
        undistributed oil and gas revenues
      37,754,000 20,425,000 22,462,000 18,463,000 16,743,000 27,160,000 32,318,000 23,323,000 18,731,000 23,577,000 17,328,000 13,570,000 26,416,000 11,098,000 8,619,000 5,916,000 8,705,000 9,166,000 8,983,000 11,755,000 11,719,000 14,681,000 12,671,000 10,953,000 10,713,000 12,996,000 10,249,000 11,549,000 11,073,000 9,192,000 10,441,000 9,580,000 6,444,000  12,589,000 12,938,000 10,402,000 17,825,000 11,109,000 13,170,000 10,990,000 10,990,000 8,634,000 7,110,000 7,550,000 2,722,000 3,264,000 6,448,000  4,010,000 4,006,000 4,301,000  4,950,000 5,775,000 5,773,000  5,018,000 5,087,000 5,273,000  4,124,000 3,852,000 5,694,000  2,071,000 2,189,000 9,709,000 9,400,634 7,866,086 
        total current liabilities
      353,475,000 248,444,000 194,852,000 141,085,000 136,446,000 195,839,000 286,217,000 273,060,000 221,569,000 121,337,000 177,726,000 101,924,000 75,165,000 58,040,000 52,360,000 38,629,000 66,041,000 81,146,000 67,030,000 83,615,000 97,532,000 106,012,000 132,938,000 102,463,000 73,411,000 75,497,000 73,603,000 73,164,000 71,894,000 79,124,000 49,834,000 67,774,000 417,121,000 333,053,000 94,997,000 93,793,000 110,286,000 148,919,000 187,007,000 164,025,000 177,076,000 176,033,000 223,282,000 179,867,000 177,480,000 196,531,000 212,257,000 192,677,000  187,577,000 142,541,000 154,342,000  138,654,000 126,741,000 107,757,000  90,665,000 81,644,000 116,247,000  188,671,000 188,471,000 173,863,000  138,785,000 127,165,000 122,586,000 105,780,612 98,421,014 
        long-term debt
      1,039,469,000 1,173,766,000 645,096,000 722,904,000 705,715,000 688,531,000 626,351,000 640,175,000 346,003,000 372,825,000 393,726,000 393,446,000 395,172,000 424,905,000 447,644,000 464,390,000 484,142,000 472,900,000 475,663,000 466,433,000 424,207,000 387,988,000 316,773,000 274,577,000 245,371,000 265,325,000 250,000,000 211,000,000 172,000,000 198,000,000 254,000,000 254,000,000   1,179,132,000 1,149,165,000 1,124,201,000 1,074,534,000 1,178,301,000 1,175,036,000 1,142,368,000 1,142,368,000 1,037,435,000 987,168,000 916,934,000 822,721,000 719,977,000 719,875,000 719,775,000 471,809,000 471,746,000 471,685,000 471,624,000 471,566,000 471,508,000 471,452,000 471,397,000 480,800,000 628,000,000 636,700,000 580,700,000 516,600,000 524,200,000 623,400,000 587,000,000 400,000,000 400,000,000 414,000,000 350,000,000 350,000,000 
        non-current lease liability
      12,955,000 8,899,000 4,604,000 3,571,000 3,303,000 3,775,000 5,379,000 7,788,000 8,427,000 9,090,000 9,723,000 10,670,000 1,126,000 951,000 1,392,000 1,778,000 1,397,000 2,813,000 4,154,000 5,605,000 1,171,000                                                  
        deferred tax liabilities
      94,077,000 99,227,000 49,033,000 50,073,000 42,753,000 16,141,000 14,012,000 7,721,000 3,613,000 6,516,000 303,000 303,000 303,000 303,000   1,281,000 1,582,000 1,706,000 1,446,000 1,148,000 1,014,000 549,000 328,000            512,000 3,621,000 86,376,000 229,107,000 224,230,000 217,384,000 241,205,000 230,617,000 226,286,000 223,243,000 212,876,000 208,440,000 205,025,000                       
        asset retirement obligations
      11,913,000 11,584,000 9,840,000 9,619,000 9,451,000 9,171,000 8,255,000 8,375,000 5,644,000 5,526,000 4,706,000 4,586,000 4,489,000 4,533,000 4,344,000 4,312,000 4,170,000 4,055,000 4,265,000 4,218,000 4,073,000 3,956,000 4,158,000 4,258,000 4,185,000 8,678,000 24,174,000 23,399,000 22,819,000 22,291,000 55,361,000   56,390,000    62,122,000                                 
        other long-term liabilities
       710,000 922,000 541,000 565,000 3,588,000 2,764,000 5,066,000 1,663,000 3,043,000 846,000 490,000 270,000 424,000 292,000 162,000 30,000      1,250,000 2,500,000 7,601,000 8,312,000 2,431,000 815,000 804,000 1,829,000 2,929,000 2,745,000 685,000 3,891,000 9,511,000 10,311,000 9,181,000 7,018,000 9,695,000 9,831,000 10,324,000 10,324,000 10,162,000 10,069,000 9,901,000 10,795,000 10,688,000 10,853,000  10,221,000 9,855,000 8,785,000  1,811,000 1,871,000 1,931,000  2,050,000 2,409,000 2,469,000  2,288,000 2,347,000 2,407,000       
        commitments and contingencies
                                                                            
        stockholders' equity:
                                                                            
        preferred stock, 0.01 par value...
                                                                            
        common stock, 0.01 par value...
      260,000 259,000 259,000 231,000 231,000 227,000 227,000 227,000 171,000 168,000 136,000 124,000 123,000  121,000 120,000 120,000  119,000 118,000 118,000                                                  
        additional paid-in capital
      681,099,000 679,202,000 677,473,000 578,817,000 577,293,000 576,118,000 574,885,000 573,259,000 414,127,000 413,017,000 324,106,000 300,088,000 298,841,000 297,712,000 296,629,000 295,479,000 294,250,000 292,916,000 291,754,000 289,899,000 288,130,000 286,281,000 284,406,000 282,726,000 281,303,000 279,111,000 276,753,000 275,282,000 273,787,000    777,269,000 776,358,000 774,830,000 773,322,000 771,624,000 771,972,000 766,875,000 764,058,000 761,972,000 762,242,000 755,303,000 750,697,000 747,868,000 743,677,000 738,918,000 733,592,000  722,502,000 717,945,000 713,072,000  562,429,000 559,303,000 555,920,000  548,395,000 439,322,000 436,262,000  431,151,000 426,142,000 416,548,000  401,980,000 398,005,000 392,975,000 369,191,727 365,085,695 
        treasury stock
      -11,151,000 -10,617,000 -10,616,000 -10,600,000 -10,479,000 -7,534,000 -7,534,000 -7,095,000 -6,592,000 -2,984,000 -2,984,000 -2,975,000 -2,860,000 -2,372,000 -2,372,000 -2,368,000 -2,365,000 -2,282,000 -2,193,000 -2,188,000 -2,130,000 -1,870,000 -1,870,000 -1,870,000 -1,742,000 -1,452,000 -1,293,000 -1,293,000 -942,000    -2,495,000 -2,491,000 -2,487,000 -2,487,000 -2,491,000 -9,855,000 -9,686,000 -9,645,000 -12,575,000 -12,575,000 -12,495,000 -12,471,000 -13,855,000 -13,831,000 -13,736,000 -13,686,000  -12,276,000 -12,246,000 -12,219,000  -9,725,000 -9,713,000 -9,626,000  -9,183,000 -8,994,000 -8,970,000  -10,156,000 -8,196,000 -8,196,000  -7,420,000 -6,609,000 -6,582,000 -6,124,944 -6,445,586 
        retained earnings
      504,956,000 520,484,000 337,426,000 342,197,000 317,260,000 222,768,000 49,407,000   -117,669,000    -204,428,000   99,096,000 104,954,000 98,706,000 71,055,000 6,351,000 -9,702,000 -66,450,000 -73,530,000 -75,851,000 -84,317,000       -1,735,342,000 -1,627,039,000 -1,097,600,000 -743,012,000 -450,145,000 31,817,000 296,831,000 288,793,000 283,380,000 315,244,000 316,343,000 309,621,000 302,412,000 291,193,000 288,071,000 285,043,000  260,837,000 243,861,000 202,833,000  172,352,000 163,022,000 150,563,000  121,818,000 114,292,000 116,559,000  628,381,000 566,458,000 484,539,000  516,271,000 473,989,000 442,479,000 329,785,711 254,302,757 
        total stockholders’ equity
      1,175,164,000 1,189,328,000 1,004,542,000 910,645,000 884,305,000 791,579,000 616,985,000 473,257,000 225,782,000 292,532,000 89,316,000 101,238,000 120,056,000 91,033,000 80,602,000 86,351,000 391,101,000 395,707,000 388,386,000 358,884,000 292,469,000 274,827,000 216,204,000 207,443,000 203,827,000 193,458,000 166,122,000 151,768,000 134,382,000 76,055,000 83,324,000 79,989,000 -960,118,000 -852,724,000 -324,810,000 28,270,000 319,434,000 794,378,000 1,054,463,000 1,043,648,000 1,033,216,000 1,065,350,000 1,059,590,000 1,048,286,000 1,036,860,000 1,021,360,000 1,013,687,000 1,005,643,000  971,493,000 950,199,000 903,883,000  725,439,000 713,051,000                
        total liabilities and stockholders’ equity
      2,695,163,000 2,734,462,000 1,930,449,000 1,840,470,000 1,784,932,000 1,716,362,000 1,589,913,000 1,452,355,000 831,790,000 819,454,000 698,335,000 622,943,000 600,450,000 583,135,000 590,679,000 598,034,000 949,209,000 959,816,000 941,346,000 921,188,000 822,797,000 777,520,000 680,224,000 596,996,000 534,395,000 551,270,000 516,330,000 460,146,000 401,899,000 377,299,000 445,448,000 455,555,000 433,274,000 524,998,000 1,024,278,000 1,347,028,000 1,630,355,000 2,173,347,000 2,724,536,000 2,681,273,000 2,643,593,000 2,698,505,000 2,629,918,000 2,531,199,000 2,444,061,000 2,341,487,000 2,236,021,000 2,203,625,000  1,924,468,000 1,826,399,000 1,773,261,000  1,546,923,000 1,513,845,000                
        see accompanying notes to condensed consolidated financial statements.
                                                                            
        property and equipment, full-cost method, including 28,375 and 16,272 of unproved property costs not being amortized
       3,597,160,000                                                                     
        less – accumulated depreciation, depletion, amortization and impairment
       -1,223,241,000    -1,004,044,000    -869,985,000    -801,279,000    -380,728,000    -284,804,000    -216,769,000    -169,879,000                                         
        see accompanying notes to consolidated financial statements.
                                                                            
        property and equipment, full cost method, including 27,821 and 16,272, respectively, of unproved property costs not being amortized at the end of each period
        2,861,267,000                                                                    
        deposit and other fees for oil and gas property transaction
        52,564,000                                                                    
        property and equipment, full cost method, including 26,344 and 16,272, respectively, of unproved property costs not being amortized at the end of each period
         2,756,694,000                                                                   
        property and equipment, full cost method, including 18,196 and 16,272, respectively, of unproved property costs not being amortized at the end of each period
          2,638,716,000                                                                  
        property and equipment, full-cost method, including 16,272 and 17,090 of unproved property costs not being amortized
           2,529,223,000                                                                 
        property and equipment, full cost method, including 17,478 and 17,090, respectively, of unproved property costs not being amortized at the end of each period
            2,345,317,000                                                                
        property and equipment, full cost method, including 21,412 and 17,090, respectively, of unproved property costs not being amortized at the end of each period
             2,200,603,000                                                               
        accumulated deficit
             -93,134,000 -181,924,000  -231,942,000                -109,454,000 -122,337,000 -138,578,000 -156,288,000 -149,207,000 -149,601,000                                       
        property and equipment, full cost method, including 23,623 and 17,090, respectively, of unproved property costs not being amortized at the end of each period
              1,651,497,000                                                              
        property and equipment, full-cost method, including 17,090 and 28,090 of unproved property costs not being amortized
               1,611,953,000                                                             
        property and equipment, full cost method, including 24,988 and 28,090, respectively, of unproved property costs not being amortized at the end of each period
                1,476,586,000                                                            
        property and equipment, full cost method, including 24,312 and 28,090, respectively, of unproved property costs not being amortized at the end of each period
                 1,402,202,000                                                           
        (accumulated deficit) retained earnings
                 -195,999,000 -176,048,000  -213,776,000 -206,880,000                                                       
        property and equipment, full cost method, including 29,113 and 28,090, respectively, of unproved property costs not being amortized at the end of each period
                  1,375,961,000                                                          
        property and equipment, full-cost method, including 28,090 and 41,201 of unproved property costs not being amortized
                   1,343,373,000                                                         
        deferred tax asset
                      23,433,000 22,669,000 20,427,000 21,164,000                512,000 2,979,000  4,829,000 5,572,000 4,974,000 10,715,000 2,815,000 2,757,000 5,679,000 4,864,000 4,203,000 2,600,000  4,826,000 3,310,000 2,046,000           7,788,000 16,510,000   2,383,000 2,383,000 10,091,251  
        preferred stock, .01 par value...
                                                                            
        common stock, .01 par value...
                   121,000    119,000    118,000 118,000 117,000 117,000 116,000 116,000 116,000 115,000    450,000 448,000 447,000 447,000 446,000 444,000 443,000 442,000 439,000 439,000 439,000 439,000 435,000 434,000 434,000 433,000  430,000 429,000 429,000  383,000 383,000 382,000  379,000 316,000 316,000  313,000 312,000 309,000  305,000 305,000 303,000 296,491 294,590 
        property and equipment, full cost method, including 30,661 and 41,201, respectively, of unproved property costs not being amortized at the end of each period
                    1,323,789,000                                                        
        property and equipment, full cost method, including 30,043 and 41,201, respectively, of unproved property costs not being amortized at the end of each period
                     1,303,551,000                                                       
        property and equipment, full cost method, including 42,249 and 41,201, respectively, of unproved property costs not being amortized at the end of each period
                      1,298,453,000                                                      
        property and equipment, full-cost method, including 41,201 and 56,715 of unproved property costs not being amortized
                       1,247,717,000                                                     
        property and equipment, full cost method, including 43,066 and 56,715, respectively, of unproved property costs not being amortized at the end of each period
                        1,193,671,000                                                    
        property and equipment, full cost method, including 49,866 and 56,715, respectively, of unproved property costs not being amortized at the end of each period
                         1,144,217,000                                                   
        property and equipment, full cost method, including 64,797 and 56,715 of unproved property costs not being amortized at the end of each period
                          1,074,453,000                                                  
        property and equipment, full cost method, including 56,715 and 50,377 of unproved property costs not being amortized
                           986,100,000                                                 
        property and equipment, full cost method, including 54,986 and 50,377 of unproved property costs not being amortized at the end of each period
                            891,708,000                                                
        property and equipment, full cost method, including 53,865 and 50,377 of unproved property costs not being amortized at the end of each period
                             796,052,000                                               
        property and equipment, full cost method, including 55,725 and 50,377 of unproved property costs not being amortized at the end of each period
                              723,828,000                                              
        property and equipment, full cost method, including 50,377 and 33,354 of unproved property costs not being amortized
                               712,166,000                                             
        property and equipment, full cost method, including 52,075 and 33,354 of unproved property costs not being amortized at the end of each period
                                668,398,000                                            
        property and equipment, full cost method, including 39,919 and 33,354 of unproved property costs not being amortized at the end of each period
                                 608,158,000                                           
        property and equipment, full cost method, including 34,345 and 33,354 of unproved property costs not being amortized at the end of each period
                                  549,717,000                                          
        property and equipment, full cost method, including 33,354 and 18,839 of unproved property costs not being amortized
                                   517,074,000                                         
        liabilities subject to compromise
                                      917,972,000 984,388,000                                     
        stockholders' equity
                                                                            
        predecessor common stock, .01 par value...
                                                                            
        predecessor additional paid-in capital
                                                                            
        predecessor treasury stock held, at cost, 179,395 shares
                                                                            
        successor preferred stock, .01 par value...
                                                                            
        successor common stock, .01 par value...
                                   101,000 100,000 100,000                                       
        successor additional paid-in capital
                                   232,917,000 232,431,000 229,490,000                                       
        successor treasury stock held, at cost, 22,485 shares
                                   -675,000                                         
        property and equipment, including 47,310 and 18,839 of unproved property costs not being amortized at the end of each period
                                    569,325,000                                        
        predecessor preferred stock, .01 par value...
                                                                            
        property and equipment, including 47,603 and 18,839 of unproved property costs not being amortized at the end of each period
                                     562,123,000                                       
        asset retirement obligation
                                     51,047,000 57,614,000  65,448,000 64,977,000 63,632,000  65,963,000 64,503,000 63,225,000 63,225,000 68,832,000 79,523,000 79,643,000 77,204,000 70,972,000 69,552,000  91,237,000 71,574,000 70,529,000  58,650,000 57,230,000 56,193,000  47,469,000 46,668,000 46,056,000  33,702,000 34,607,000 32,372,000  35,141,000 34,696,000 34,122,000 19,811,717 19,095,368 
        property and equipment, including 18,839 of unproved property costs not being amortized at the end of each period
                                      6,060,121,000                                      
        less – accumulated depreciation, depletion, and amortization
                                      -5,673,015,000 -5,577,854,000 -5,061,058,000 -4,704,508,000 -4,402,460,000 -3,839,118,000 -3,308,992,000 -3,236,443,000 -3,174,453,000 -3,125,282,000 -2,968,161,000 -2,908,302,000 -2,847,773,000 -2,781,965,000 -2,722,546,000 -2,660,839,000  -2,540,613,000 -2,487,813,000 -2,431,612,000  -2,333,367,000 -2,292,193,000 -2,252,776,000  -2,173,549,000 -2,132,063,000 -2,091,388,000  -1,153,377,000 -1,100,632,000 -1,042,913,000  -1,073,797,000 -1,019,663,000 -969,634,000   
        property and equipment, including 18,839 and 64,903 of unproved property costs not being amortized, respectively
                                       6,035,757,000                                     
        property and equipment, including 69,697 and 64,903 of unproved property costs not being amortized, respectively
                                        6,023,634,000                                    
        property and equipment, including 71,118 and 64,903 of unproved property costs not being amortized, respectively
                                         5,992,080,000                                   
        property and equipment, including 64,577 and 64,903 of unproved property costs not being amortized, respectively
                                          5,958,840,000                                  
        deferred tax assets
                                           6,243,000                6,208,000 4,468,000 2,926,000               
        property and equipment, including 64,903 and 71,452 of unproved property costs not being amortized, respectively
                                           5,934,155,000                                 
        property and equipment, including 63,662 and 71,452 of unproved property costs not being amortized, respectively
                                            5,923,457,000                                
        property and equipment, including 66,246 and 71,452 of unproved property costs not being amortized, respectively
                                             5,813,305,000                               
        property and equipment, including 71,452 and 92,579 of unproved property costs not being amortized, respectively
                                              5,714,099,000                              
        property and equipment, including 65,767 and 71,452 of unproved property costs not being amortized, respectively
                                               5,714,099,000                             
        property and equipment, including 93,990 and 92,579 of unproved property costs not being amortized, respectively
                                                5,491,252,000                            
        property and equipment, including 94,223 and 92,579 of unproved property costs not being amortized, respectively
                                                 5,337,272,000                           
        property and equipment, including 92,579 and 84,146 of unproved property costs not being amortized, respectively
                                                  5,192,793,000                          
        accumulated other comprehensive loss, net of income tax
                                                   -113,000      -232,000      -23,000 -224,000    -2,037,000 -436,000     -411,427  
        accumulated other comprehensive income, net of income tax
                                                     261,000   210,000    56,000       4,683,000     223,000 -214,000  -69,469 
        total revenues from continuing operations
                                                      599,131,000    438,429,000    370,445,000    820,815,000    654,121,000      
        income from continuing operations, before income
                                                                            
        taxes
                                                      135,104,000                      
        income from continuing operations
                                                      84,610,000    46,475,000    -39,076,000    -257,130,000    152,588,000      
        net cash from operating activities -
                                                                            
        continuing operations
                                                      373,058,000    258,996,000    226,176,000    582,027,000    442,282,000      
        per share and share data
                                                                            
        weighted-average shares outstanding
                                                      42,394,000    38,300,000    33,594,000    30,661,000    29,984,000      
        earnings per share--basic
                                                      1,960    1,190    -1,160    -8,390    5,090      
        earnings per share--diluted
                                                      1,950    1,180    -1,160    -8,390    4,980      
        shares outstanding at year-end
                                                      42,485,000    41,999,000    37,457,000    30,869,000    30,179,000      
        book value per share at year-end
                                                      23,460    20,950    18,120    19,470    27,700      
        market price
                                                                            
        high
                                                      47,320    40,830    25,610    67,030    47,720      
        low
                                                      21,810    24,520    4,950    15,300    35,980      
        year-end close
                                                      29,720    39,150    23,960    16,810    44,030      
        current assets
                                                      328,151,000    160,817,000    108,600,000    78,086,000    199,950,000      
        property & equipment, net of accumulated
                                                                            
        depreciation, depletion, and amortization
                                                      1,867,766,000    1,572,845,000    1,315,964,000    1,431,447,000    1,760,195,000      
        liabilities
                                                                            
        current liabilities
                                                      211,794,000    162,787,000    103,604,000    153,499,000    210,161,000      
        total liabilities
                                                      1,215,960,000    866,358,000    755,866,000    916,411,000    1,132,997,000      
        stockholders’ equity
                                                      996,509,000    880,017,000    678,899,000    600,877,000    836,054,000      
        number of domestic employees
                                                      309,000    292,000    295,000    334,000    298,000      
        domestic producing wells
                                                                      1,218,000      
        swift operated
                                                      1,025,000    1,212,000    1,146,000    1,168,000    1,091,000      
        outside operated
                                                      46,000    119,000    148,000    159,000    127,000      
        total domestic producing wells
                                                      1,071,000    1,331,000    1,294,000    1,327,000          
        domestic wells drilled
                                                      44,000    56,000    20,000    126,000    69,000      
        domestic proved reserves
                                                                            
        natural gas
                                                      616,800    423,000    290,600    292,400    343,800      
        oil reserves
                                                      30,900    39,300                  
        ngl reserves
                                                      25,800    23,000                  
        total domestic proved reserves
                                                      159,600    132,800    112,900    116,400    133,800      
        domestic production
                                                      10,500    8,300    9,100    10,000    10,600      
        domestic average sales price
                                                                            
        natural gas liquids
                                                      52,130    42,440    31,360    57,150    49,720      
        oil
                                                      107,000    79,450    60,070    101,380    71,920      
        boe equivalent
                                                      57,220    52,420    41,050    79,000    61,490      
        assets held for sale
                                                                            
        deferred income taxes
                                                       192,131,000 180,484,000 164,037,000  150,803,000 143,444,000 132,606,000  114,075,000 106,925,000 99,507,000  405,177,000 373,438,000 337,620,000  279,958,000 257,004,000 239,357,000 178,888,868  
        current assets held for sale
                                                         564,000  564,000 564,000 564,000  564,000 564,000 564,000  564,000 564,000 93,446,000       
        taxes and change in accounting principle
                                                          74,308,000    -64,617,000    -412,758,000    244,556,000      
        oil and gas properties, using full-cost accounting
                                                           3,800,736,000 3,689,276,000                
        accounts receivable-
                                                                            
        oil and gas sales
                                                             36,515,000  37,135,000 38,233,000 36,082,000  41,779,000 99,887,000 67,549,000  58,409,000 58,676,000 63,286,000 54,316,805 45,518,260 
        joint interest owners
                                                             3,131,000  1,590,000 840,000 2,869,000  775,000 1,346,000 1,884,000  1,177,000 1,220,000 895,000 1,375,144 1,082,187 
        other receivables
                                                             9,245,000  11,678,000 8,647,000 12,396,000  7,848,000 3,765,000 1,709,000  1,133,000 1,318,000 1,035,000 11,626,451 3,795,080 
        oil and gas, using full-cost accounting
                                                                            
        proved properties
                                                             3,492,107,000  3,377,796,000 3,337,896,000 3,313,703,000  3,113,205,000 2,907,592,000 2,752,116,000  2,569,223,000 2,459,404,000 2,368,048,000 1,881,432,276 1,731,866,298 
        unproved properties
                                                             72,400,000  78,599,000 87,017,000 95,032,000  108,373,000 108,290,000 108,388,000  107,689,000 108,745,000 107,426,000 96,489,581 87,553,220 
        furniture, fixtures, and other equipment
                                                             37,029,000  37,830,000 37,901,000 38,010,000  36,289,000 35,169,000 33,349,000  34,633,000 31,593,000 30,441,000 24,580,227 15,313,277 
        other assets:
                                                                            
        deferred charges
                                                             8,605,000               
        other comprehensive income
                                                             962,000               
        oil, ngl, & condensate
                                                              64,500    67,700    76,500      
        debt issuance costs
                                                               5,201,000 5,508,000 5,809,000  6,399,000 6,688,000 6,971,000  7,527,000 7,562,000 7,071,000 7,434,390 8,026,780 
        restricted assets
                                                               1,412,000 1,413,000 1,649,000  1,834,000 1,828,000 1,588,000  2,398,000 2,485,000 2,414,000 2,221,507 2,296,968 
        see accompanying notes to condensed consolidated financial statements
                                                                            
        current liabilities associated with assets held for sale
                                                                     8,164,000       
        effect on income from continuing operations and
                                                                            
        earnings per share from changes in accounting
                                                                            
        principles
                                                                            
        cumulative effect of change in accounting
                                                                            
        principle
                                                                            
        effect per share—basic
                                                                            
        effect per share—diluted
                                                                            
        lease incentive obligation
                                                                       1,549,000 1,609,000 1,668,000 1,847,490 271,182 
        less — accumulated depreciation, depletion, and amortization
                                                                          -830,555,121 -755,699,056 
        stockholders’ equity:
                                                                            
        unearned compensation
                                                                           -5,849,820 
      Cashflow Statements:
      Quarterly
      Annual
        Unit: USD2024-03-31 2023-12-31 2023-09-30 2023-06-30 2023-03-31 2022-12-31 2022-09-30 2022-06-30 2022-03-31 2021-12-31 2021-09-30 2021-06-30 2021-03-31 2020-12-31 2020-09-30 2020-06-30 2020-03-31 2019-12-31 2019-09-30 2019-06-30 2019-03-31 2018-12-31 2018-09-30 2018-06-30 2018-03-31 2017-12-31 2017-09-30 2017-06-30 2017-03-31 2016-03-31 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 
                                                                          
          cash flows from operating activities:
                                                                          
          net income
        -15,528,000 183,058,000 -4,771,000 24,937,000 94,492,000 173,361,000 142,541,000 88,790,000 -64,255,000 114,273,000 -35,943,000 -19,951,000 28,380,000 9,348,000 -6,896,000 -305,976,000 -5,858,000 6,248,000 27,651,000 64,704,000 16,053,000 56,748,000 7,080,000 2,321,000 8,466,000 25,137,000 12,883,000 16,241,000 17,710,000 -108,303,000 -529,439,000 -354,588,000 -292,867,000 -477,077,000 -298,170,000 1,292,000 8,038,000 5,413,000 -41,849,000 8,886,000 6,722,000 7,209,000 11,219,000 3,122,000 3,028,000 3,570,000 20,636,000 16,976,000 41,028,000 20,181,000 10,300,000 9,330,000 12,459,000 14,205,000 14,540,000 7,526,000 -2,267,000 -59,129,000  61,923,000 81,919,000 48,361,000 -80,093,000 42,282,000 31,510,000 27,588,000 
          adjustments to reconcile net income to net cash from operating activities
                                                                          
          depreciation, depletion, and amortization
        92,103,000 72,079,000 53,187,000 49,852,000 43,998,000 44,886,000 41,501,000 26,441,000 21,154,000 23,144,000 16,054,000 16,038,000 13,393,000 13,434,000 13,974,000 13,717,000 23,439,000 25,144,000 24,937,000 24,029,000 21,805,000 23,041,000 18,766,000 13,097,000 13,131,000 14,558,000 11,832,000 10,828,000 9,715,000 17,245,000 39,120,000 35,606,000 42,088,000 60,698,000 66,518,000 67,182,000 72,205,000 61,685,000 65,517,000 66,948,000 59,458,000 60,120,000 65,540,000 58,987,000 61,288,000 61,363,000 58,089,000 54,404,000 55,816,000 52,921,000 44,469,000 40,800,000 39,029,000 38,274,000 40,798,000 41,011,000 40,365,000 43,934,000 60,297,000 52,217,000 57,280,000 52,494,000 37,499,000 53,568,000 49,679,000 47,647,000 
          accretion of asset retirement obligations
        316,000 267,000 254,000 240,000 224,000 168,000 166,000 101,000 99,000 80,000 78,000 73,000 75,000 91,000 90,000 87,000 86,000 72,000 89,000 85,000 83,000 89,000 87,000 84,000 159,000  582,000 576,000 564,000                                      
          deferred income taxes
        -5,150,000  -1,040,000 7,320,000 26,612,000  6,291,000 4,107,000 -2,902,000      22,152,000 -1,065,000  997,000 -20,866,000 134,000  221,000        -642,000 -79,491,000 -163,864,000 1,638,000 5,621,000 6,248,000 -21,928,000 6,492,000 4,293,000 4,377,000 8,559,000 3,840,000 2,087,000 2,312,000 12,663,000 10,255,000 15,255,000 10,822,000 6,730,000 5,649,000 9,810,000 10,692,000 8,550,000 7,978,000 -39,000 -29,866,000 -269,335,000 31,107,000 45,302,000 28,428,000 26,786,000 27,245,000 17,323,000 15,120,000 
          share-based compensation
        1,830,000  1,468,000 1,451,000 1,124,000  1,187,000 1,667,000 1,047,000  1,190,000 1,190,000 1,070,000  1,066,000                                                    
          (gain) loss on derivatives
        56,078,000  54,639,000 -19,994,000 -92,249,000  -4,832,000 22,406,000 140,242,000 -29,861,000 88,553,000 46,067,000 18,259,000 5,580,000 12,945,000 8,458,000 -88,287,000 10,070,000 -13,409,000 -24,925,000 4,022,000 -20,930,000 13,600,000 10,752,000 6,355,000                                          
          cash settlement (paid) received on derivatives
        38,371,000  23,189,000 28,782,000 18,699,000  -91,455,000 -66,049,000 -24,554,000  -18,268,000 -7,645,000 -3,063,000  8,654,000 19,846,000 47,650,000  11,706,000 3,304,000 1,077,000  -3,736,000 -2,912,000 977,000                                          
          settlements of asset retirement obligations
        -2,000 -235,000 -70,000 -408,000 -3,000 -1,000 7,000 -16,000 -38,000 -7,000 15,000 -62,000 -104,000 -67,000 -12,000 -13,000 -2,000 -16,000 -20,000 -16,000 -31,000 -28,000 -15,000 -24,000 -120,000 -90,000 -351,000 -1,483,000 -411,000                                      
          other
        3,362,000 1,500,000 716,000 556,000 756,000 9,435,000 -8,093,000 530,000 1,138,000 994,000 681,000 858,000 344,000 625,000 622,000 672,000 1,142,000 1,148,000 622,000 596,000 564,000 1,179,000 740,000 3,245,000 129,000 -1,319,000 278,000 797,000 -315,000 2,551,000 -4,458,000 21,000 3,233,000 373,000 -8,520,000 2,049,000 777,000 -3,216,000 -1,350,000 2,228,000 -2,160,000 -3,864,000 1,559,000 694,000 1,612,000 -2,889,000 3,553,000 3,830,000 3,349,000 -8,589,000 1,090,000 2,214,000 816,000 -2,557,000 7,851,000 -1,880,000 990,000 9,172,000 -11,021,000 5,214,000 -5,242,000 2,409,000 -4,187,000 2,860,000 -400,000 -2,587,000 
          change in operating assets and liabilities:
                                                                          
          increase in accounts receivable and other current assets
        -5,374,000  -17,168,000 -4,390,000 30,687,000  -12,898,000 -37,216,000 2,794,000  -19,554,000 -509,000 -878,000  -6,880,000 4,857,000 9,436,000  335,000 -990,000 14,401,000  -8,865,000 -1,673,000 4,005,000  -2,398,000 456,000 -1,942,000 3,167,000  2,800,000 1,161,000 7,880,000 7,252,000                                
          increase in accounts payable and accrued liabilities
        24,557,000 12,492,000 16,596,000 2,588,000 -24,504,000 -8,472,000 21,514,000 8,890,000 -10,144,000 10,292,000 7,717,000 -10,803,000 10,301,000 3,004,000 6,156,000 -3,200,000 -6,937,000 1,724,000 -1,896,000 2,177,000 -9,105,000 -74,000 5,827,000 1,058,000 -9,497,000 4,484,000 -2,832,000 7,873,000 -3,436,000 5,185,000 -10,235,000 -771,000 5,649,000 -9,646,000 -5,794,000 2,447,000 -2,033,000 6,885,000 1,709,000 268,000 520,000 3,085,000 949,000 262,000   2,057,000 7,094,000      -10,809,000   -7,942,000 536,000 -2,301,000 -8,107,000   4,104,000 3,175,000   
          increase in income taxes payable
        465,000 204,000 92,000 -71,000 300,000 -208,000 -325,000 155,000 149,000     -572,000 268,000 -176,000 302,000             15,000    -229,000 693,000              2,000    126,000    -248,000    579,000 78,000 90,000 -90,000 -884,000 
          increase in accrued interest
        -1,343,000 6,692,000 222,000 530,000 -441,000 281,000 965,000 558,000 165,000 -149,000 -109,000 -97,000 69,000 91,000 -365,000 71,000 -211,000 240,000 -176,000 -80,000 -100,000 -791,000 -293,000 299,000 192,000 471,000 4,000 264,000 -354,000 -15,000 17,336,000 -7,714,000 8,428,000 -8,320,000 8,403,000 -8,519,000 8,365,000 -8,421,000         2,236,000 -537,000 535,000 -785,000 871,000 -843,000 543,000 6,694,000    1,518,000 -1,547,000   1,537,000 -1,019,000   1,928,000 
          net cash from operating activities
        189,685,000 128,709,000 127,314,000 91,393,000 99,695,000 119,063,000 96,569,000 50,714,000 64,895,000 82,078,000 40,414,000 25,388,000 67,846,000 37,430,000 28,782,000 22,917,000 76,083,000 50,108,000 52,805,000 49,665,000 50,595,000 33,549,000 34,977,000 27,891,000 25,156,000 40,786,000 23,086,000 32,230,000 11,736,000 5,045,000 13,864,000 -1,029,000 30,209,000 -770,000 54,196,000 81,872,000 100,604,000 69,699,000 85,840,000 76,076,000 87,308,000 62,223,000 90,922,000 68,005,000 91,896,000 63,783,000 84,537,000 101,542,000 125,162,000 61,815,000 65,243,000 64,690,000 69,711,000 59,311,000 79,970,000 62,574,000 32,746,000 50,490,000 82,926,000 203,707,000 158,921,000 142,512,000 127,583,000 134,264,000 120,088,000 85,967,000 
          capital expenditures
        -80,225,000 -105,270,000 -94,539,000 -110,179,000 -111,285,000 -108,876,000 -69,821,000 -58,518,000 -35,228,000 -35,419,000 -41,224,000 -21,143,000 -35,852,000 -12,025,000 -17,119,000 -32,976,000 -52,618,000 -47,801,000 -60,721,000 -87,583,000 -86,555,000 -103,381,000 -79,054,000 -50,344,000 -33,753,000 -51,346,000 -55,981,000 -60,238,000 -25,417,000 -36,595,000 -12,936,000 -21,755,000 -55,824,000 -49,173,000 -69,364,000 -107,993,000 -103,390,000 -105,589,000 -104,646,000 -170,405,000 -132,336,000 -132,981,000 -182,044,000 -200,958,000 -186,838,000 -187,915,000 -136,578,000 -123,956,000 -112,887,000 -131,911,000 -125,269,000 -99,263,000 -65,730,000 -63,386,000 -50,866,000 -28,703,000 -32,431,000 -103,370,000 -155,039,000 -154,324,000 -142,560,000 -176,402,000 -62,397,000 -146,252,000 -76,272,000 -113,374,000 
          free cash flows
        109,460,000 23,439,000 32,775,000 -18,786,000 -11,590,000 10,187,000 26,748,000 -7,804,000 29,667,000 46,659,000 -810,000 4,245,000 31,994,000 25,405,000 11,663,000 -10,059,000 23,465,000 2,307,000 -7,916,000 -37,918,000 -35,960,000 -69,832,000 -44,077,000 -22,453,000 -8,597,000 -10,560,000 -32,895,000 -28,008,000 -13,681,000 -31,550,000 928,000 -22,784,000 -25,615,000 -49,943,000 -15,168,000 -26,121,000 -2,786,000 -35,890,000 -18,806,000 -94,329,000 -45,028,000 -70,758,000 -91,122,000 -132,953,000 -94,942,000 -124,132,000 -52,041,000 -22,414,000 12,275,000 -70,096,000 -60,026,000 -34,573,000 3,981,000 -4,075,000 29,104,000 33,871,000 315,000 -52,880,000 -72,113,000 49,383,000 16,361,000 -33,890,000 65,186,000 -11,988,000 43,816,000 -27,407,000 
          cash flows from investing activities:
                                                                          
          additions to property and equipment
        -80,225,000 -105,270,000 -94,539,000 -110,179,000 -111,285,000 -108,876,000 -69,821,000 -58,518,000 -35,228,000 -35,419,000 -41,224,000 -21,143,000 -35,852,000 -12,025,000 -17,119,000 -32,976,000 -52,618,000 -47,801,000 -60,721,000 -87,583,000 -86,555,000 -103,381,000 -79,054,000 -50,344,000 -33,753,000 -51,346,000 -55,981,000 -60,238,000 -25,417,000 -36,595,000 -12,936,000 -21,755,000 -55,824,000 -49,173,000 -69,364,000 -107,993,000 -103,390,000 -105,589,000 -104,646,000 -170,405,000 -132,336,000 -132,981,000 -182,044,000 -200,958,000 -186,838,000 -187,915,000 -136,578,000 -123,956,000 -112,887,000 -131,911,000 -125,269,000 -99,263,000 -65,730,000 -63,386,000 -50,866,000 -28,703,000 -32,431,000 -103,370,000 -155,039,000 -154,324,000 -142,560,000 -176,402,000 -62,397,000 -146,252,000 -76,272,000 -113,374,000 
          acquisition of oil and gas properties, net of purchase price adjustments
        11,821,000  -134,000 842,000 -1,090,000  -21,655,000 -272,661,000 436,000                                                          
          proceeds from the sale of property and equipment
        5,730,000     -68,000 1,883,000           -5,000 -91,000 -267,000 1,016,000 -45,000 26,969,000 49,000 193,000 28,000 432,000 4,876,000 187,000 31,000   -500,000 145,500,000 35,000 1,000 149,000 5,842,000 999,000 5,000 239,000 -248,000 532,000 44,200,000 6,033,000 38,000 13,000 36,000 45,000 52,000 26,494,000 4,537,000 12,000 40,000 20,000 11,000 34,000 79,000 31,000 4,000 126,000 89,000 
          net cash from investing activities
        -62,674,000 -657,967,000 -145,836,000 -109,337,000 -112,375,000 -182,088,000 -89,593,000 -329,397,000 -34,792,000 -73,934,000 -54,236,000 -22,229,000 -36,057,000 -13,503,000 -17,166,000 -31,902,000 -52,760,000 -48,511,000 -62,283,000 -89,150,000 -87,924,000 -106,354,000 -79,254,000 -50,389,000 -12,826,000 -60,723,000 -55,788,000 -60,210,000 -24,985,000 -31,719,000 -12,749,000 -21,724,000 -54,878,000 -49,173,000 -58,020,000 25,663,000 -103,390,000 -105,554,000 -104,645,000 -170,256,000 -126,494,000 -131,982,000 -182,039,000 -200,719,000 -187,086,000 -187,383,000 -92,378,000 -117,923,000 -112,849,000 -126,898,000 -125,269,000 -99,227,000 -65,685,000 -58,334,000 -24,372,000 -24,166,000 -27,419,000 -103,330,000 -155,246,000 -200,785,000 -60,772,000 -177,346,000 -322,492,000 -128,985,000 -89,446,000 -116,763,000 
          cash flows from financing activities:
                                                                          
          proceeds from bank borrowings
        128,000,000 338,000,000 124,000,000 89,000,000 121,000,000 162,000,000 197,000,000 360,000,000 122,000,000 140,000,000 72,000,000 66,000,000 57,000,000 36,000,000 21,000,000 50,000,000 66,000,000 88,000,000 95,000,000 132,000,000 114,500,000 70,000,000 87,200,000 35,100,000 55,700,000 49,000,000 257,000,000 43,000,000 15,000,000 22,900,000 77,700,000 77,100,000 103,400,000 -151,600,000 381,900,000 141,800,000 115,300,000                             
          payments of bank borrowings
        -254,000,000 -114,000,000 -202,000,000 -72,000,000 -104,000,000 -100,000,000 -211,000,000 -66,000,000 -149,000,000 -111,000,000 -72,000,000 -68,000,000 -87,000,000 -59,000,000 -38,000,000 -20,000,000 -39,000,000 -69,000,000 -79,000,000 -53,000,000 -96,000,000 -43,500,000 -28,000,000 -58,200,000 -55,100,000 -232,700,000 -10,000,000 -218,000,000 -69,000,000  -47,700,000 -52,100,000 -53,700,000 146,900,000 -480,900,000 -138,500,000 -82,600,000                             
          purchase of treasury shares
        -534,000 -1,000 -16,000 -121,000 -2,945,000 7,000 -439,000 -503,000 -2,462,000 -9,000 -115,000 -488,000 -4,000 -3,000 -83,000 -89,000 -5,000 -58,000 -260,000 -128,000 -290,000 -159,000 -351,000 -267,000 -4,000 -4,000 4,000 -154,000 -111,000 -58,000 -41,000 -855,000 -19,000 -61,000 -24,000 -1,409,000 -24,000 -95,000 -50,000 -2,636,000 -74,000 -30,000 -27,000 -3,262,000 -53,000 -12,000 -87,000 -1,676,000 -38,000 -189,000 -24,000 -633,000 -275,000 -1,960,000 -1,387,000 -60,000 -811,000 -27,000 -928,000 
          net cash from financing activities
        -126,534,000 536,290,000 19,117,000 16,879,000 14,055,000 61,893,000 -14,460,000 286,446,000 -29,579,000 -8,011,000 12,747,000 -4,515,000 -30,488,000 -23,031,000 -17,004,000 -20,003,000 10,917,000 -3,089,000 8,995,000 41,942,000 35,740,000 70,728,000 41,988,000 28,872,000 -19,899,000 14,882,000 38,936,000 34,439,000 13,114,000 14,996,000 21,023,000 30,000,000 24,433,000 49,848,000 -4,811,000 -99,058,000 3,259,000 32,669,000 21,985,000 82,939,000 50,276,000 69,837,000 89,637,000 102,693,000 72,000 -1,307,000 243,538,000 82,000 221,000 -1,520,000 140,885,000 -3,439,000 357,000 -345,000 -17,283,000 -38,485,000 -8,630,000 56,091,000 63,802,000 -7,268,000 -95,158,000 39,367,000 188,821,000 -784,000 -26,389,000 32,701,000 
          net increase in cash, cash equivalents and restricted cash
        477,000                  -483,000 2,457,000 -1,589,000  -2,289,000 6,374,000 -7,569,000                                          
          cash, cash equivalents and restricted cash at beginning of period
        8,729,000                                                                  
          cash, cash equivalents and restricted cash at end of period
        9,206,000                  -483,000 2,457,000 876,000  -2,289,000 6,374,000 457,000                                          
          supplemental disclosures of cash flow information:
                                                                          
          cash paid during period for interest
        34,072,000                                                                  
          non-cash investing and financing activities:
                                                                          
          changes in capital accounts payable and capital accruals
        29,194,000 -27,042,000 9,878,000 6,582,000 -3,097,000 -6,223,000 39,713,000 15,845,000 5,037,000 -15,426,000 10,086,000 4,895,000 -3,588,000 6,276,000 2,977,000 -26,629,000 -1,989,000 6,321,000 -11,384,000 -18,008,000 1,487,000 -8,711,000 18,761,000 23,122,000 12,177,000 519,000 4,019,000 -2,009,000 7,365,000                                      
          see accompanying notes to condensed consolidated financial statements.
                                                                          
          adjustments to reconcile net income to net cash from operating activities-
                                                                          
          deferred income tax expense
                                                                          
          share-based compensation expense
                        1,260,000 1,057,000 1,752,000 1,647,000 1,692,000 1,740,000 1,565,000 1,316,000 1,359,000 2,311,000 1,402,000 1,633,000 1,503,000 770,000 1,147,000 1,135,000 1,274,000 879,000 1,738,000 1,618,000 1,899,000 2,054,000 2,024,000 2,436,000 3,003,000 3,015,000                         
          (gain) loss on commodity derivatives
                                                                          
          cash settlements received (paid) on derivatives
                                                                          
          write-down of debt issuance cost
                                 275,000 1,951,000 450,000                                      
          change in operating assets and liabilities-
                                                                          
          increase in accounts receivable and other assets
                                                                          
          acquisition of oil and gas properties
                 -38,515,000 -13,012,000 -2,000 -205,000  -47,000                                                    
          payments on property sale obligations
                 -400,000 -284,000 -142,000 -710,000 -1,562,000 -1,562,000 -1,278,000 -1,704,000 -994,000 -6,042,000                                          
          proceeds from long-term debt
                                                                        
          payments of long-term debt
                                                                        
          net proceeds from issuances of common stock
         176,000        14,200,000            1,000 708,000 -1,000 -64,000 -137,000 39,381,000  302,000 824,000 4,000 946,000 113,000 148,000 122,000 1,329,000 49,000 112,000 248,000 1,742,000 141,088,000 54,000 444,000 1,331,000 79,000 108,904,000 94,000 724,000 57,000 1,873,000 3,426,000 3,887,000 1,268,000 277,000 1,215,000 1,029,000 
          net proceeds from stock options exercised
                                                                        
          payments of debt issuance costs
             -114,000 -21,000 -7,090,000 -117,000 -1,211,000           -272,000 -13,000 -317,000 -5,958,000    -1,873,000                   -150,000            -250,000   
          cash, cash equivalents and restricted cash at beginning of year
                                                                          
          cash, cash equivalents and restricted cash at end of year
                                                                          
          supplemental disclosures of cash flows information:
                                                                          
          non-cash equity consideration for acquisitions
             7,000 -157,393,000 1,134,000 -73,499,000                                                         
          non-cash deferred consideration for acquisitions
                                                                          
          non-cash contingent consideration for acquisitions
                                                                          
          see accompanying notes to consolidated financial statements.
                                                                          
          write down of debt issuance cost
                                                                       
          deposit and other fees for oil and gas property transaction
                                                                          
          net increase in cash and cash equivalents
          595,000 -1,065,000 1,375,000 -1,132,000 -7,484,000 7,763,000 524,000  -1,075,000 -1,356,000 1,301,000  -5,388,000 -28,988,000 34,240,000         -5,055,000 6,234,000 6,459,000 -135,000 -11,678,000 22,138,000   -95,000 -8,635,000 8,477,000 473,000 -3,186,000   11,090,000 78,000       12,534,000 -66,603,000   4,383,000 632,000 38,315,000 -77,000 -3,303,000 3,251,000 -8,518,000 -4,346,000 2,991,000 4,533,000 -6,088,000 4,495,000 4,253,000 1,905,000 
          cash and cash equivalents at beginning of period
          792,000  1,121,000  2,118,000  1,358,000         303,000 29,460,000 406,000 3,277,000 170,000 251,696,000  86,367,000  38,469,000  283,000  5,623,000  1,058,000 
          cash and cash equivalents at end of period
          595,000 -1,065,000 2,167,000  -7,484,000 7,763,000 1,645,000  -1,075,000 -1,356,000 3,419,000  -5,388,000 -28,988,000 35,598,000         -5,055,000 6,234,000 6,459,000 168,000 17,782,000 22,138,000 7,247,000 -236,000 311,000 -8,635,000 8,477,000 473,000 91,000 3,180,000 -11,241,000 11,090,000 248,000 -1,480,000 -30,021,000 -95,118,000 126,789,000  -16,299,000 12,534,000 19,764,000  -37,976,000 4,383,000 39,101,000  -77,000 -3,303,000 3,534,000  -4,346,000 2,991,000 10,156,000  4,495,000 4,253,000 2,963,000 
          cash paid during period for interest, net of amounts capitalized
          18,830,000 16,906,000 16,434,000  10,473,000 6,412,000 5,816,000  6,995,000 6,858,000 6,424,000 6,639,000 7,284,000 6,958,000 8,048,000 8,236,000 9,044,000 8,825,000 8,303,000 7,174,000 6,694,000 5,756,000 5,170,000 -962,000 2,543,000 5,888,000 2,959,000 4,793,000 1,120,000 26,524,000 9,509,000 25,979,000 8,950,000 25,952,000 9,721,000 26,310,000 9,080,000 25,282,000 8,082,000 24,626,000 7,736,000 18,477,000 7,283,000 13,415,000  8,522,000 7,430,000 8,741,000  8,796,000 7,385,000 1,340,000  5,611,000 8,927,000 5,652,000  5,089,000 9,849,000 6,872,000  3,733,000 10,768,000 4,507,000 
          accrued other fees for oil and gas property transaction
                                                                          
          cash settlements (paid) received on derivatives
                                                                          
          cash, cash equivalents at beginning of year
                                                                          
          cash, cash equivalents at end of year
                                                                          
          write-down of oil and gas properties
                     260,342,000 95,606,000             77,732,000 477,491,000 321,522,000 260,504,000 502,569,000                     79,312,000         
          net increase in cash and cash equivalents and restricted cash
                                                                          
          change in operating assets and liabilities
                                                                          
          acquisition of producing properties
                                                                          
          proceeds from (adjustments to) the sale of property and equipment
                                                                          
          cash paid during period for income taxes
                                           9,000 30,000   50,000    150,000 200,000 1,420,000     3,000    5,500,000    7,000 1,000,000 
          deferred income tax benefit
                                                                          
          transfer of company funds in restricted cash
                                                                          
          changes in other long-term liabilities for capital expenditures
                             -1,250,000 -1,250,000 -1,250,000 -1,250,000                                          
          transfer of company funds from restricted cash
                                                                          
          cash, cash equivalents and restricted cash, at beginning of period
                          2,465,000  8,026,000                                          
          see accompanying notes to condensed consolidated financial statements
                                                                          
          proceeds from long-term debt issuances
                                                                          
          transfer of company funds to restricted cash
                                                                          
          accretion of asset retirement obligation
                                     1,291,000 1,416,000 1,410,000 1,381,000 1,365,000 1,466,000 1,445,000 1,415,000 1,386,000 1,449,000 1,478,000 1,479,000 1,775,000 1,656,000 1,191,000 1,162,000 1,112,000 1,088,000 1,183,000 1,163,000 1,136,000 1,029,000 998,000 975,000 954,000 755,000 732,000 717,000 702,000 526,000 511,000 467,000 454,000 267,000 388,000 396,000 386,000 
          gain on derivatives
                                 -3,448,000 1,603,000 -5,131,000 -10,937,000                                      
          reorganization items
                                     5,422,000                                     
          cash paid for reorganization items
                                     5,007,000                                     
          cash settlements on derivatives
                                  83,000 -1,775,000 -811,000                                      
          funds withdrawn from restricted cash account
                                          19,493,000                                
          funds deposited into restricted cash account
                                          -7,649,000                                
          change in assets and liabilities-
                                                                          
          increase in accounts receivable
                                            4,467,000 -2,335,000 -2,083,000   -5,191,000    3,193,000    -13,612,000    -713,000         -15,307,000 310,000 4,284,000 1,599,000 
          net decrease in cash and cash equivalents
                                                   -30,021,000 -95,118,000 -124,907,000                     
          gain from discontinued operations, net of taxes
                                                                          
          cash from operating activities – continuing operations
                                                  90,922,000 68,005,000 91,896,000 63,783,000 84,544,000 101,573,000 125,225,000 61,716,000 65,255,000 64,723,000 69,753,000 59,265,000 80,000,000 62,603,000 32,839,000 50,734,000 82,702,000 204,582,000 155,053,000 139,690,000     
          cash used by operating activities – discontinued operations
                                                                          
          cash from investing activities – continuing operations
                                                  -182,039,000 -200,719,000 -187,086,000 -187,383,000 -92,378,000 -117,923,000 -112,849,000 -131,898,000 -125,269,000 -99,227,000 -65,685,000 -63,334,000 -24,372,000 -24,166,000 -32,419,000 -103,330,000 -155,019,000 -200,785,000 -142,526,000 -176,323,000     
          cash from investing activities – discontinued operations
                                                      5,000,000 5,000,000   -227,000 81,754,000 -1,023,000     
          net proceeds from bank borrowings
                                              22,000,000 83,000,000 50,300,000 70,300,000 -63,240,000               56,000,000    36,400,000    32,600,000 
          cash from financing activities – continuing operations
                                                  89,637,000 102,693,000 72,000 -1,307,000 243,538,000 82,000 221,000 -1,520,000 140,885,000 -3,439,000 357,000 -345,000 -17,283,000 -38,485,000 -8,630,000 56,091,000 63,802,000 -7,268,000 -95,158,000 39,367,000     
          cash from financing activities – discontinued operations
                                                                          
          decrease in income taxes payable
                                               -30,000    -50,000    -17,000    3,000    -52,000          
          decrease in accrued interest
                                                 -8,303,000    -594,000                     
          decrease in accounts receivable
                                                   1,884,000    5,012,000    -1,114,000      2,648,000    2,272,000     
          plus (gain) income from discontinued operations, net of taxes
                                                                          
          less gain from discontinued operations, net of taxes
                                                                          
          stock-based compensation expense
                                                   3,381,000 3,552,000 3,629,000 3,344,000 3,342,000 3,255,000 2,684,000 2,706,000 2,645,000 2,541,000 2,364,000 2,378,000 2,209,000 2,616,000 2,029,000 3,018,000 2,648,000 3,333,000 2,632,000 2,534,000 2,636,000 2,716,000 2,431,000 
          cash from operating activities – discontinued operations
                                                      -7,000 -31,000 -63,000 99,000 -12,000 -33,000 -42,000 46,000 -30,000 -29,000 -93,000 -244,000 224,000 -875,000 3,868,000 2,822,000     
          less (gain) from discontinued operations, net of taxes
                                                                          
          plus income from discontinued operations, net of taxes
                                                         68,000 19,000 73,000 54,000 35,000 39,000 32,000 57,000 126,000         
          decrease in accounts payable and accrued liabilities
                                                     -7,913,000    -3,112,000  4,968,000          -950,000    -7,261,000 
          adjustments to reconcile net income to net cash from operation activities -
                                                                          
          debt retirement cost – cash and non-cash
                                                                        
          acquisition of properties
                                                                          
          net payments of bank borrowings
                                                                         
          payments of debt retirement costs
                                                                        
          cash and cash equivalents at beginning of year
                                                                          
          cash and cash equivalents at end of year
                                                                          
          cash paid during year for interest, net of amounts capitalized
                                                                          
          cash paid during year for income taxes
                                                                          
          plus loss (less income) from discontinued operations, net of taxes
                                                                          
          adjustments to reconcile net income to net cash from operating activities -
                                                                          
          payment of debt issuance costs
                                                                          
          minus income (plus loss) from discontinued operations, net of taxes
                                                                          
          excess tax benefits from stock-based awards
                                                                  -80,000 419,000 616,000 467,000     
          net cash received as operator of partnerships and joint ventures
                                                                         
          net proceeds from (payments of) bank borrowings
                                                                          
          acquisitions of oil and gas properties
                                                                          
          net income loss)
                                                                          
          plus (income) income from discontinued operations, net of taxes
                                                                  212,000 348,000 1,326,000 1,474,000     
          net cash received as operator of partnerships
                                                                          
          and joint ventures
                                                                         467,000 
          debt retirement costs – cash and non-cash
                                                                          
          net payments from bank borrowings
                                                                   -7,600,000       
          net cash received (distributed) as operator of partnerships
                                                                          
          adjustments to reconcile net income to net cash provided
                                                                          
          by operating activities-
                                                                          
          net cash distributed as operator of oil and gas properties
                                                                        -13,318,000 -3,945,000 
          cumulative effect of change in accounting principle
                                                                          
          debt retirement cost — cash and non-cash
                                                                          
          acquisition of south bearhead creek fields
                                                                          
          acquisition of bay de chene and cote blanche island fields
                                                                          
          net cash received as operator of oil and gas properties