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VAALCO Energy, Inc
(NYSE:EGY) 

EGY stock logo

VAALCO Energy, Inc., an independent energy company, acquires, explores for, develops, and produces crude oil and natural gas. The company holds Etame production sharing contract related to the Etame Marin block located offshore in the Republic of Gabon in West Africa. It also owns interests in an un...

Founded: 1985
Full Time Employees: 111
Sector: Energy
Industry: Oil & Gas E&P

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At a glance:
  • Focused West African and Egyptian Oil Production: VAALCO Energy is an independent upstream oil and gas company with primary production assets in Gabon (Etame Marin block) and Egypt, following its strategic merger with TransGlobe Energy.
  • Enhanced Scale and Reserves Post-Merger: The October 2022 merger with TransGlobe Energy significantly expanded VAALCO's production, reserves, and operational footprint, establishing a larger, more diversified portfolio across West Africa and Egypt.
  • Strong Financials and Shareholder Capital Returns: The company boasts a strong balance sheet, generates substantial free cash flow, and is committed to returning capital to shareholders through a consistent dividend and potential share repurchase programs.
  • Strategic Focus on Asset Optimization and Development: VAALCO's strategy centers on maximizing value from existing assets through efficient operations, workovers, and infill drilling, alongside pursuing low-risk development and exploration opportunities within its core regions.
Bull Thesis:
  • Successful Integration and Diversification Post-TransGlobe Acquisition: The acquisition of TransGlobe Energy has significantly scaled VAALCO's production, reserves, and geographic footprint (Gabon, Equatorial Guinea, Egypt, Canada), reducing single-asset risk and providing a more robust platform for growth and stable cash flow generation. Successful integration is expected to unlock synergies and enhance operational efficiency.
  • Strong Free Cash Flow Generation and Shareholder Returns: With a larger, diversified asset base and a focus on optimizing existing production, VAALCO is positioned to generate substantial free cash flow. This enables consistent dividends and potential share buybacks, appealing to income-focused investors and demonstrating a commitment to returning capital to shareholders.
  • Attractive Valuation Relative to Peers and Asset Base: Despite the significant increase in scale and cash flow potential post-acquisition, VAALCO may still be undervalued compared to its E&P peers. This suggests potential upside as the market fully recognizes the benefits of the TransGlobe integration and its enhanced, diversified asset portfolio.
  • Leverage to Favorable Oil Price Environment: As an upstream exploration and production (E&P) company, VAALCO is a direct beneficiary of sustained high crude oil prices (Brent). This directly translates to higher revenues, profitability, and cash flow, especially given its relatively low-cost production profile across its operating regions.
Bear Thesis:
  • Integration Risks and Execution Challenges of TransGlobe Assets: Successfully integrating the diverse assets and operations of TransGlobe, particularly in Egypt and Canada, could prove more complex, costly, or time-consuming than anticipated. This could delay synergy realization, impact operational efficiency, or lead to unexpected expenses.
  • Exposure to Volatile Crude Oil Prices: VAALCO's financial performance is highly sensitive to fluctuations in global crude oil prices. A significant and sustained downturn in oil prices would severely impact its revenues, cash flow, and profitability, potentially jeopardizing its ability to maintain shareholder returns and fund future operations.
  • Geopolitical and Operational Risks in Key Operating Regions: Operating in regions like West Africa (Gabon, Equatorial Guinea) and Egypt exposes VAALCO to inherent geopolitical instability, regulatory changes, security concerns, and potential operational disruptions (e.g., infrastructure issues, government relations) that could impact production and profitability.
  • Production Decline Rates and Reserve Replacement Challenges: E&P companies face natural production declines from existing fields. If VAALCO struggles to cost-effectively replace reserves through new discoveries or development, its long-term production profile and asset value could diminish, potentially requiring significant capital expenditure to maintain output.
  • Capital Expenditure Requirements and Impact on Free Cash Flow: While the company aims for strong free cash flow, maintaining and growing production, especially across a more diverse asset base, will require ongoing capital expenditures. Higher-than-anticipated capex could reduce the cash available for dividends, share buybacks, or debt reduction, impacting shareholder value.
Main Competitors:
  • Tullow Oil plc ($TLW.L) (Oil & Gas Exploration and Production), Competes for exploration and production opportunities, capital, and operational talent in West Africa, particularly in countries like Gabon and Ghana, where both companies seek to develop oil and gas assets.
  • Kosmos Energy Ltd. ($KOS) (Oil & Gas Exploration and Production), A significant independent E&P player in West Africa, directly competing with VAALCO for offshore exploration blocks, development projects, and farm-in opportunities in countries like Equatorial Guinea and Ghana.
  • BW Energy Limited ($BWE.OL) (Oil & Gas Exploration and Production), Operates in Gabon, a key country for VAALCO, and competes for offshore development projects, infrastructure access, and capital allocation within the West African E&P landscape.
  • Panoro Energy ASA ($PEN.OL) (Oil & Gas Exploration and Production), A direct peer with a strong focus on West Africa, including Gabon and Equatorial Guinea, competing for similar asset types, farm-in opportunities, and investor capital in the region.
Moat:
VAALCO Energy operates in the highly competitive independent oil and gas exploration and production (E&P) sector, particularly focused on West Africa. Its 'moat' is primarily derived from its established operational track record and long-standing relationships with host governments in its core regions, such as Gabon and Equatorial Guinea, along with its existing producing assets that generate cash flow. However, E&P companies generally lack traditional moats like network effects or proprietary technology. Competition is intense for securing new exploration acreage, attracting capital for development projects, and optimizing operational efficiency to achieve lower lifting costs. VAALCO competes directly with other independent E&P firms, both larger and smaller, that target similar offshore opportunities in West Africa, all highly exposed to volatile global commodity prices and geopolitical risks.
Income Statements:
Quarterly
Annual
    Unit: USD2026-03-31 2025-12-31 2025-09-30 2025-06-30 2025-03-31 2024-12-31 2024-09-30 2024-06-30 2024-03-31 2023-12-31 2023-09-30 2023-06-30 2023-03-31 2022-12-31 2022-09-30 2022-06-30 2022-03-31 2021-12-31 2021-09-30 2021-06-30 2021-03-31 2020-12-31 2020-09-30 2020-06-30 2020-03-31 2019-12-31 2019-09-30 2019-06-30 2019-03-31 2018-12-31 2018-09-30 2018-06-30 2018-03-31 2017-12-31 2017-09-30 2017-06-30 2017-03-31 2016-12-31 2016-09-30 2016-06-30 2016-03-31 2015-12-31 2015-09-30 2015-06-30 2015-03-31 2014-12-31 2014-09-30 2014-06-30 2014-03-31 2013-12-31 2013-09-30 2012-12-31 2012-09-30 2012-06-30 2011-12-31 2010-12-31 2009-12-31 2009-03-31 2008-12-31 2007-12-31 2006-12-31 2006-03-31 2005-12-31 2005-06-30 2005-03-31 
                                                                     
      revenues:
                                                                     
      crude oil, natural gas and natural gas liquids sales
    62,599,000 91,042,000 61,007,000 96,893,000 110,329,000 121,721,000 140,334,000 116,778,000 100,155,000 149,154,000 116,269,000 109,240,000 80,403,000                                                     
      operating costs and expenses:
                                                                     
      production expense
    28,379,000 43,107,000 29,872,000 40,393,000 44,806,000 36,641,000 42,324,000 52,446,000 32,089,000 46,397,000 39,956,000 38,604,000 28,200,000 45,514,000 23,312,000 25,475,000 18,360,000 23,495,000 25,208,000 16,419,000 16,133,000 6,456,000 8,984,000 12,126,000 9,749,000 9,815,000 9,836,000 9,819,000 8,219,000 9,157,000 7,481,000 12,817,000 10,960,000 11,549,000 10,336,000 9,866,000 7,946,000 11,830,000 7,162,000 7,341,000 11,253,000 13,459,000 7,859,000 8,867,000 9,911,000 10,075,000 7,145,000 4,848,000          5,688,000        
      exploration expense
    22,394,000 6,041,000 353,000 2,520,000     48,000 706,000 1,194,000 57,000 8,000 8,000 56,000 67,000 127,000 293,000 479,000 665,000 142,000 3,572,000 16,000       2,000  12,000  3,000 4,000   1,000 2,000 2,000 1,000 8,874,000 9,007,000 1,113,000 27,459,000 145,000 598,000 3,293,000  2,472,000 11,070,000 36,001,000 699,000 3,484,000    20,466,000    252,000  2,302,000 149,000 
      depreciation, depletion and amortization
    18,212,000 30,845,000 20,555,000 28,273,000 30,305,000 37,047,000 47,031,000 33,132,000 25,824,000 20,344,000 32,538,000 38,003,000 24,417,000 26,316,000 8,963,000 8,191,000 4,673,000 4,132,000 6,970,000 5,810,000 4,148,000 1,266,000 2,212,000 2,801,000 3,103,000 2,112,000 1,509,000 1,909,000 1,553,000 2,307,000 1,130,000 1,035,000 1,124,000 918,000 1,700,000 1,970,000 1,869,000 1,139,000 1,607,000 1,945,000 2,241,000 9,517,000 8,259,000 9,299,000 5,935,000 4,642,000 4,289,000 6,995,000 4,160,000 5,918,000 3,954,000 3,198,000 4,861,000 6,850,000    5,654,000    1,847,000  1,320,000 1,587,000 
      loss on sale of assets
    1,202,000                                                                 
      general and administrative expense
    8,276,000 6,696,000 8,845,000 8,496,000 9,051,000 8,454,000 6,929,000 7,591,000 6,710,000 7,005,000 6,216,000 5,395,000 5,224,000 -430,000 1,979,000 3,534,000 4,994,000 2,545,000 2,940,000 4,734,000 4,547,000 4,744,000 2,178,000 3,019,000 754,000 2,950,000 4,738,000 2,728,000 4,439,000 976,000 2,811,000 5,008,000 2,603,000 1,723,000 2,463,000 3,049,000 3,127,000 708,000 2,420,000 4,043,000 2,984,000 3,323,000 3,804,000 2,829,000 4,873,000 3,505,000 3,967,000 3,134,000                  
      credit losses (recovery) and other
    271,000                                                                 
      total operating costs and expenses
    78,734,000 153,534,000 60,109,000 79,711,000 84,135,000 83,224,000 96,353,000 96,510,000 67,796,000 68,946,000 80,726,000 88,386,000 58,784,000 72,407,000 44,197,000 37,838,000 28,646,000 30,526,000 35,915,000 28,023,000 25,071,000 16,063,000 13,541,000 18,125,000 45,041,000 14,127,000 16,137,000 14,461,000 14,182,000 12,433,000 7,940,000 19,017,000 14,631,000 14,413,000 14,454,000 15,068,000 13,055,000 13,235,000 11,751,000 14,274,000 17,621,000 89,301,000 49,667,000 28,225,000 53,857,000     22,331,000 29,636,000 51,293,000 22,036,000 20,186,000    31,720,000    6,110,000  6,238,000 5,257,000 
      operating income
    -16,135,000 -64,883,000 898,000 17,182,000 26,194,000 38,507,000 44,083,000 20,400,000 32,193,000 80,939,000 35,548,000 20,551,000 21,619,000 24,224,000 33,900,000 73,147,000 40,005,000 25,853,000 20,030,000 18,874,000 14,343,000 -4,292,000 4,678,000 -966,000 -26,683,000 7,776,000 1,501,000 6,370,000 5,546,000 15,206,000 17,320,000 5,723,000 13,038,000 2,495,000 3,721,000 5,587,000 8,148,000 1,833,000 2,858,000 4,573,000 -6,648,000 -75,124,000 -32,121,000 -1,030,000 -35,278,000 -94,276,000 6,687,000 33,828,000 -650,000 35,951,000 8,104,000 2,260,000 15,594,000 38,632,000    -10,462,000    25,127,000  10,361,000 17,887,000 
      yoy
    -161.60% -268.50% -97.96% -15.77% -18.63% -52.42% 24.01% -0.73% 48.91% 234.13% 4.86% -71.90% -45.96% -6.30% 69.25% 287.55% 178.92% -702.35% 328.17% -2053.83% -153.75% -155.20% 211.66% -115.16% -581.12% -48.86% -91.33% 11.31% -57.46% 509.46% 365.47% 2.43% 60.01% 36.12% 30.20% 22.17% -222.56% -102.44% -108.90% -543.98% -81.16% -20.31% -580.35% -103.04% 5327.38% -362.23% -17.49% 1396.81% -104.17% -6.94%    -469.26%    -141.64%        
      qoq
    -75.13% -7325.28% -94.77% -34.40% -31.98% -12.65% 116.09% -36.63% -60.23% 127.69% 72.97% -4.94% -10.75% -28.54% -53.65% 82.84% 54.74% 29.07% 6.12% 31.59% -434.18% -191.75% -584.27% -96.38% -443.15% 418.05% -76.44% 14.86% -63.53% -12.21% 202.64% -56.11% 422.57% -32.95% -33.40% -31.43% 344.52% -35.86% -37.50% -168.79% -91.15% 133.88% 3018.54% -97.08% -62.58% -1509.84% -80.23% -5304.31% -101.81% 343.62% 258.58% -85.51% -59.63%           -42.08%  
      other expense
    -1,034,000    -1,012,000       -537,000 -1,140,000                                                     
      derivative instruments loss
    -70,581,000    -74,000           -9,542,000 -31,758,000            -1,912,000                                     
      interest expense
    -1,699,000 -2,044,000 -2,333,000 -2,572,000 -1,295,000 -1,092,000 -588,000 -1,117,000 -935,000 -1,343,750 -1,426,000 -1,703,000 -2,246,000                   -30,000 -354,000 -306,000 -327,000 -378,000  -329,000 -328,000 -1,470,000 -489,000 -218,000 -465,000 -344,000 -310,000             -15,000    -331,000  -120,000 -101,000 
      total other expense
    -73,314,000       17,054,000 -2,269,000 626,000 -3,563,000 -2,209,000 -3,365,000 -12,097,750 -4,163,000 -11,771,000 -32,457,000                                                 
      income before income taxes
    -89,449,000 -63,251,000 -2,495,000 15,363,000 23,813,000 28,855,000 43,564,000 37,454,000 29,924,000                               2,740,000 -3,411,000 -76,537,000 -30,961,000 -931,000 -35,640,000 -94,749,000 6,870,000 33,720,000 -912,000 36,024,000 8,048,000 2,154,000 15,603,000 39,046,000    -9,626,000        
      income tax expense
    4,315,000 -4,648,000 -3,596,000 6,983,000 16,083,000 17,192,000 32,574,000 9,303,000 22,238,000 37,574,000 25,844,000 11,588,000 14,771,000 6,953,000 22,843,000 46,252,000 -4,628,000   2,825,000 3,086,000    33,478,000   9,208,000 2,753,000   3,582,000 4,042,000 1,339,000 2,749,000 3,096,000 3,194,000 2,364,000 2,198,000 3,001,000 4,652,000 4,242,000 2,707,000 4,273,000 3,365,000 41,383,000 -3,761,000 -9,009,000 -6,126,000 9,648,000 5,662,000 21,073,000 14,191,000 26,729,000    2,379,000    12,120,000  4,907,000 9,876,000 
      net income
    -93,764,000 -58,603,000 1,101,000 8,380,000 7,730,000 11,663,000 10,990,000 28,151,000 7,686,000 43,991,000 6,141,000 6,752,000 3,470,000 17,754,000 6,868,000 15,104,000 12,164,000 34,362,000 31,721,000 5,884,000 9,869,000 -3,595,000 7,618,000 596,000 -52,800,000 1,014,000 -3,919,000 -1,033,000 6,501,000 10,424,000 78,605,000 544,000 8,659,000 3,431,000 -322,000 2,283,000 4,259,000 -2,627,000 -15,599,000 -261,000 -8,063,000 -80,779,000 -33,668,000 -5,204,000  -98,338,000 3,109,000 24,712,000 -7,038,000 26,376,000 2,386,000 -18,919,000 1,412,000 12,317,000    -12,005,000    10,974,000  4,998,000 7,262,000 
      yoy
    -1312.99% -602.47% -89.98% -70.23% 0.57% -73.49% 78.96% 316.93% 121.50% 147.78% -10.59% -55.30% -71.47% -48.33% -78.35% 156.70% 23.25% -1055.83% 316.40% 887.25% -118.69% -454.54% -294.39% -157.70% -912.18% -90.27% -104.99% -289.89% -24.92% 203.82% -24511.49% -76.17% 103.31% -230.61% -97.94% -974.71% -152.82% -96.75% -53.67% -94.98%  -17.86% -1182.92% -121.06%  -472.83% 30.30% -230.62% -598.44% 114.14%    -202.60%    -209.39%        
      qoq
    60.00% -5422.71% -86.86% 8.41% -33.72% 6.12% -60.96% 266.26% -82.53% 616.35% -9.05% 94.58% -80.46% 158.50% -54.53% 24.17% -64.60% 8.33% 439.11% -40.38% -374.52% -147.19% 1178.19% -101.13% -5307.10% -125.87% 279.38% -115.89% -37.63% -86.74% 14349.45% -93.72% 152.38% -1165.53% -114.10% -46.40% -262.12% -83.16% 5876.63% -96.76% -90.02% 139.93% 546.96%   -3263.01% -87.42% -451.12% -126.68% 1005.45% -112.61% -1439.87% -88.54%           -31.18%  
      other comprehensive income
                                                                     
      currency translation adjustments
    112,000 1,387,000 -1,799,000 4,759,000 117,000 -5,975,000 1,655,000 -1,068,000 -2,454,000 2,036,000 -2,216,000 2,006,000 -125,000                                                     
      comprehensive income
    -93,652,000 -57,216,000 -698,000 13,139,000 7,847,000 5,688,000 12,645,000 27,083,000 5,232,000 46,027,000 3,925,000 8,758,000 3,345,000                                                     
      basic net income per share:
                                                                     
      net income per share
    -0.9 -0.56 0.01 0.08 0.07 0.11 0.1 0.27 0.07 0.41 0.06 0.06 0.03 0.17 0.12 0.25 0.21 0.57 0.53 0.1 0.17 -0.06 0.13 0.01 -0.91 0.02 -0.07 -0.01 0.1 0.17 1.31 0.01 0.15                                 
      basic weighted-average shares outstanding
    104,258 104,055 104,258 103,936 103,758 103,669 103,743 103,528 103,659 106,376 106,289 106,965 107,387 69,568 59,068 58,925 58,702 58,230 58,586 58,072 57,636 57,594 57,456 57,456 57,975 59,143 58,953 59,801 59,630 59,248 59,481 59,090 58,863 58,717 58,817 58,658 58,567 58,384 58,708 58,464 58,513 58,289 58,392 58,302 57,981 57,229 57,304 56,951 56,860 57,299  57,673              
      diluted net income per share:
                                                                     
      diluted weighted-average shares outstanding
    104,258 104,055 104,283 103,958 103,785 103,747 103,842 103,676 104,541 106,555 106,433 107,613 108,752 69,982 59,450 59,361 59,179 58,755 58,916 58,574 58,461 57,594 57,741 57,594 57,975 59,143 58,953 59,801 60,683 59,997 60,818 59,851 58,863 58,720 58,817 58,658 58,580 58,384 58,708 58,464 58,513 58,289 58,392 58,302 57,981 57,229 57,868 57,537 56,860 57,925  58,832     57,407 58,261   60,476 60,173  58,072 58,388 
      credit losses and other
     121,250 484,000 29,000  1,305,500 69,000 3,341,000 1,812,000 609,250 822,000 680,000 935,000                                                     
      other operating income
         17,000 102,000 132,000 -166,000 731,000 5,000   43,000     46,000   -786,000 -37,000   -20,000 35,000 -4,399,000 -37,000 33,000  314,000 24,000 -248,000  230,000 -63,000  -26,000   -3,346,000  58,000 340,000                     
      other income:
                                                                     
      derivative instruments gain
     3,643,000 -1,093,000 400,000  -365,000 210,000 257,000 -847,000 2,500,000 -2,320,000 31,000 21,000 -290,000 3,778,000   -1,756,000 -5,147,000 -9,969,000 -5,954,000 -6,000  -756,000 7,339,000 -2,712,000 2,267,000 1,911,000                                      
      bargain purchase gain
         -6,366,000  19,898,000                                                          
      other income
     -157,000 33,000 353,000  -1,829,000 -141,000 -1,984,000 -487,000 -797,000 183,000   2,466,000 -7,707,000 -2,111,000 -696,000                                                 
      total other income
     1,632,000 -3,393,000 -1,819,000 -2,381,000 -9,652,000 -519,000           -2,349,000 -5,472,000 -10,132,000 -1,369,000 -35,000 170,000 -698,000 7,424,000 -2,477,000 2,322,000 1,967,000 -1,963,000 6,644,000 -918,000 -1,254,000 -285,000 2,378,000 -1,120,000 -40,000 -519,000 -1,810,000 -476,000 -1,833,000 3,237,000 -1,413,000 1,160,000 99,000 -362,000 -473,000 183,000 -108,000  73,000 -56,000 -106,000 9,000 414,000    836,000    114,000  183,000 121,000 
      credit (recovery) losses and other
        -27,000                                                             
      other operating expense
               -303,000     -5,000   -126,000 -360,000   -815,000 -31,000             -1,106,000 324,000 754,000 8,881,000                         
      fpso demobilization and other costs
                                                                     
      transaction costs related to acquisition
            1,313,000                                                         
      fpso demobilization
             1,411,750     8,867,000                                                   
      income from continuing operations before income taxes
             81,565,000 31,985,000 18,342,000 18,254,000 24,721,000 29,737,000 61,376,000 7,548,000 23,504,000 14,558,000 8,742,000 12,974,000 -4,327,000 4,848,000 -1,664,000 -19,259,000 5,299,000 3,823,000 8,337,000 3,583,000 21,850,000 16,402,000 4,469,000 12,753,000 4,873,000 2,601,000 5,547,000 7,629,000 23,000 2,382,000                           
      income from continuing operations
             43,991,000 6,141,000 6,754,000 3,483,000 17,768,000 6,894,000 15,124,000 12,176,000 34,388,000 31,741,000 5,917,000 9,888,000 -3,538,000 7,607,000 585,000 -52,737,000 1,051,000 -3,858,000 -871,000 830,000 10,504,000 78,626,000 887,000 8,711,000 3,534,000 -148,000 2,451,000 4,435,000 -2,341,000 184,000                           
      loss from discontinued operations, net of tax
               -2,000 -13,000 -14,000 -26,000 -20,000     -19,000                                             
      fpso demobilization - norms waste disposal
               5,647,000                                                      
      crude oil and natural gas sales
                 64,434,500 78,097,000 110,985,000 68,656,000 56,379,000 55,899,000 47,023,000 39,774,000 12,557,000 18,256,000 17,974,000 18,389,000                                         
      bad debt expense and other
                 999,000 1,020,000 571,000 492,000 61,000 318,000 395,000 101,000 285,000 151,000         145,000  220,000 -49,000 183,000 98,000 645,000 63,000                           
      interest income
                 -1,679,000 -234,000 -118,000 -3,000 1,000 3,000 1,000 5,000 5,000 23,000 11,000 116,000 152,000 193,000 201,000 187,000 -68,250 111,000      -403,000 1,000 1,000  3,202,000  3,000 5,000 4,000 10,000 19,000 17,000 29,000 16,000 16,000 36,000 36,000 32,000    385,000    485,000  240,000 160,000 
      income loss from discontinued operations, net of tax
                    -12,000                                                 
      impairment of proved crude oil and natural gas properties
                            30,625,000                                         
      other
                     -594,000 -328,000 -164,000 4,580,000 -34,000 147,000 47,000 -31,000 83,000 -138,000 -145,000 -238,000 6,516,000 -1,029,000 -1,224,000 69,000 2,684,000 -793,000 338,000 -116,000 -1,482,000 -149,000 -363,000 524,000 -1,195,000 1,622,000 438,000 280,000 -483,000 164,000 -125,000 -291,000 57,000 -72,000 -142,000 -27,000 382,000    466,000    -40,000  63,000 62,000 
      income tax benefit
                     -2,818,000 -17,183,000   -789,000 -2,759,000 -2,249,000  4,248,000 7,681,000   11,346,000 -62,224,000                                   
      income from discontinued operations, net of tax
                     -26,000 -20,000 -33,000  -57,000 11,000 11,000 -63,000 -37,000 -61,000 -162,000 5,671,000       -168,000 -176,000 -286,000 -15,783,000                           
      bad debt (recovery) expense and other
                           179,000 810,000                                         
      oil and natural gas sales
                             15,649,500 17,603,000 25,230,000 19,765,000 27,606,000 25,266,000 24,426,000 27,645,000 17,156,000 18,178,000 20,425,000 21,266,000 15,326,000 14,635,000 18,847,000 10,976,000                         
      gain on revision of asset retirement obligations
                                  -3,325,000                                   
      bad debt (recovery) expense
                             7,500 54,000 5,000                                      
      bad debt recovery and other
                                -29,000                                     
      bad debt expense (recovery) and other
                                 -17,000 -157,000  -56,000       171,000 -7,286,000                         
      income from discontinued operations
                                 -80,000 -21,000 -343,000 -52,000 -103,000 -174,000    -0.27                       -0.01  1,000  
      general and administrative related to shareholder matters
                                        15,000 18,000 85,000 18,000 -453,000                         
      impairment of proved properties
                                          88,000   52,114,000 17,988,000 5,821,000 5,399,000        7,620,000             
      basic net income per share
                                            -0.14 -1.38 -0.58 -0.09                      
      diluted net income per share
                                            -0.14 -1.38 -0.58 -0.09                      
      oil and gas sales
                                             15,730,500 17,546,000 27,137,000 18,239,000 23,032,000 24,486,000 52,098,000 28,071,000 58,282,000 37,740,000 53,553,000 37,630,000 58,818,000    21,258,000    31,237,000  16,599,000 23,144,000 
      other costs and expenses
                                             831,500 2,750,000 296,000                      
      net income attributable to vaalco energy, inc.
                                                -39,005,000     26,376,000 2,386,000 -18,919,000 106,000 10,424,000            
      basic net income per share attributable to vaalco energy, inc. common shareholders
                                                -0.67 0.09 0.05 0.43 -0.12 0.073 0.04 -0.33              
      diluted net income per share attributable to vaalco energy, inc. common shareholders
                                                -0.67 -1.72 0.05 0.43 -0.12 0.45 0.04 -0.32              
      operating costs and expenses
                                                                     
      bad debt expense and other income
                                                 450,000 1,800,000                   
      total operating cost and expenses
                                                 16,197,250 17,799,000 18,270,000                  
      earnings per share - basic:
                                                                     
      earnings per share - diluted:
                                                                     
      operating costs & expenses
                                                                     
      production expenses
                                                    9,650,000 6,993,750 12,576,000 4,501,000 5,941,000 6,537,000        3,319,000  2,342,000 3,070,000 
      exploration expenses
                                                    11,323,000                 
      general and administrative expenses
                                                    3,588,000 1,998,750 1,893,000 2,266,750 2,546,000 3,040,000    -88,000    692,000  274,000 451,000 
      bad debt expense and other incomes
                                                                     
      total operating expenses
                                                    28,721,000                 
      total other incomes
                                                    -262,000                 
      bad debt expenses
                                                     321,000 143,000 662,000 369,000 275,000            
      less net income attributable to noncontrolling interest
                                                        -1,306,000 -1,893,000    -614,000        
      basic weighted shares outstanding
                                                      56,601  57,846 57,797,000   57,407 58,261   58,136 57,482  56,400 36,911 
      diluted weighted shares outstanding
                                                      57,116  58,947 59,000,000            
      basic net income attributable to vaalco energy, inc. common shareholders
                                                         180            
      diluted net income attributable to vaalco energy, inc. common shareholders
                                                         180            
      net income attributable to vaalco energy inc.
                                                             -12,619,000        
      net income attributable to vaalco energy inc. common shareholders
                                                             -0.22        
      earnings per share - diluted :
                                                                     
      income from continuing operations before income taxes, minority interest and discontinued operations
                                                                 25,241,000  10,544,000 18,008,000 
      income from continuing operations before minority interest and discontinued operations
                                                                 13,121,000  5,637,000 8,132,000 
      minority interest in earnings of subsidiaries
                                                                 -1,432,000  -640,000 -878,000 
      discontinued operations:
                                                                     
      income/(loss) from discontinued operations net of tax
                                                                 -715,000   8,000 
      basic income per share from continuing operations
                                                                 0.2   0.2 
      basic income per share
                                                                 0.19  0.09 0.2 
      diluted income per share from continuing operations
                                                                 0.19   0.12 
      diluted income per share
                                                                 0.18  0.09 0.12 
      basic income per share from continuing operations before discontinued operations
                                                                   0.09  
      diluted income per share from continuing operations before discontinued operations
                                                                   0.09  
    Balance Sheets:
    Quarterly
    Annual
      Unit: USD2026-03-31 2025-12-31 2025-09-30 2025-06-30 2025-03-31 2024-12-31 2024-09-30 2024-06-30 2024-03-31 2023-12-31 2023-09-30 2023-06-30 2023-03-31 2022-12-31 2022-09-30 2022-06-30 2022-03-31 2021-12-31 2021-09-30 2021-06-30 2021-03-31 2020-12-31 2020-09-30 2020-06-30 2020-03-31 2019-12-31 2019-09-30 2019-06-30 2019-03-31 2018-12-31 2018-09-30 2018-06-30 2018-03-31 2017-12-31 2017-09-30 2017-06-30 2017-03-31 2016-12-31 2016-09-30 2016-06-30 2016-03-31 2015-12-31 2015-09-30 2015-06-30 2015-03-31 2014-12-31 2014-09-30 2014-06-30 2014-03-31 2013-12-31 2013-09-30 2013-06-30 2013-03-31 2012-12-31 2012-09-30 2012-06-30 2012-03-31 2011-12-31 2011-09-30 2011-06-30 2011-03-31 2010-12-31 2010-09-30 2010-06-30 2010-03-31 2009-12-31 2009-09-30 2009-06-30 2009-03-31 2008-12-31 2008-09-30 2008-06-30 2008-03-31 2007-12-31 2007-09-30 2007-06-30 2007-03-31 2006-12-31 2006-09-30 2006-06-30 2006-03-31 2005-12-31 2005-09-30 2005-06-30 2005-03-31 
                                                                                           
        assets
                                                                                           
        current assets:
                                                                                           
        cash and cash equivalents
      48,044,000 58,900,000 23,984,000 67,871,000 40,914,000 82,650,000 89,101,000 62,890,000 113,321,000 121,001,000 103,353,000 46,186,000 52,119,000 37,205,000 69,289,000 53,062,000 18,939,000 48,675,000 52,839,000 22,884,000 19,251,000 47,853,000 41,986,000 44,841,000 60,973,000 45,917,000 57,227,000 48,557,000 46,195,000 33,360,000 33,715,000 40,490,000 32,205,000 19,669,000 18,863,000 20,640,000 24,245,000 20,474,000 26,883,000 13,681,000 24,156,000 25,357,000 40,701,000 61,048,000 46,552,000 69,051,000    130,529,000 100,465,000 78,708,000 102,641,000 130,800,000 136,264,000 137,796,000 140,329,000 137,139,000 112,575,000 114,467,000 92,609,000 81,234,000 91,223,000 80,791,000 89,984,000 80,570,000 84,386,000 88,369,000 87,998,000 125,425,000 103,492,000 108,583,000 79,734,000 76,450,000 70,236,000 72,404,000 54,163,000 60,979,000 69,678,000 65,955,000 52,999,000 43,880,000 45,321,000 38,511,000 32,001,000 
        restricted cash
      110,000 136,000 203,000 194,000 9,717,000 143,000 146,000 139,000 140,000 114,000 111,000 113,000 76,000 222,000 203,000 216,000 4,230,000 79,000 81,000 83,000 82,000 86,000 82,000 1,090,000 994,000 911,000 769,000 799,000 788,000 804,000 1,025,000 1,029,000 866,000 842,000 829,000 802,000 755,000 741,000 788,000 783,000 796,000 1,048,000 1,072,000 1,194,000 1,197,000 1,584,000 12,301,000 12,301,000 12,159,000 12,366,000 2,180,000 1,770,000 2,075,000 1,257,000 1,259,000 1,226,000 947,000 1,314,000                            
        receivables:
                                                                                           
        trade
      24,791,000          22,788,000 57,360,000 30,795,000 52,147,000 16,781,000 70,274,000 44,616,000 22,464,000  28,801,000 23,803,000  6,080,000 9,521,000  14,335,000 7,503,000 13,828,000 9,036,000 11,907,000  9,607,000 8,260,000 3,556,000 7,203,000 8,062,000 6,496,000 6,751,000 5,940,000 7,363,000 5,423,000 5,353,000 6,984,000 8,165,000 19,209,000 19,527,000 6,026,000 21,585,000 87,000 16,972,000 486,000 26,227,000 24,502,000 7,961,000 11,747,000 19,991,000 643,000 10,087,000 11,144,000 11,050,000 10,345,000 14,068,000 21,118,000 21,948,000 8,591,000 8,175,000 8,495,000 10,564,000 8,735,000 9,513,000 22,422,000 15,200,000 16,814,000 19,766,000 17,933,000 10,490,000 15,358,000 7,608,000 15,092,000 15,077,000 16,988,000 6,453,000 7,654,000 12,449,000 9,299,000 
        accounts with joint venture owners, net of allowance for credit losses of 2.9 million and 2.7 million, respectively
      7,782,000                                                                                     
        other
      2,197,000             68,519,000 12,190,000 10,699,000 11,612,000 9,977,000 86,000 24,000 29,000 4,331,000 81,000 2,350,000 2,241,000 1,517,000 1,160,000 1,239,000 1,076,000 1,398,000 408,000 122,000 12,000 100,000 1,000 1,000 81,000 120,000 36,000 100,000 133,000      164,000 5,494,000 4,462,000 4,435,000 10,527,000 7,688,000 7,537,000 4,463,000 3,027,000 5,068,000 8,424,000 4,239,000 4,547,000 10,352,000 11,426,000 10,412,000 11,610,000 6,295,000 2,466,000 5,171,000 5,250,000 3,511,000 1,953,000 2,074,000 2,330,000 1,828,000 1,505,000 1,646,000 1,686,000 2,590,000 2,832,000 1,333,000 1,021,000 690,000 321,000 1,234,000 1,044,000 461,000 551,000 
        crude oil inventory
      9,957,000 1,774,000 8,958,000 1,261,000 7,990,000 9,441,000 4,776,000 7,311,000 2,386,000 1,948,000 9,287,000 10,800,000 11,778,000 3,335,000 4,254,000 13,867,000 4,634,000 1,593,000 2,556,000 3,107,000 820,000 3,906,000 781,000 853,000 3,865,000 1,072,000 775,000 553,000 1,274,000 785,000 2,232,000 1,298,000 1,279,000 3,263,000 1,160,000 952,000 1,037,000 913,000 770,000 704,000 920,000 639,000 957,000 447,000 1,692,000 1,905,000 1,464,000 305,000 1,152,000 352,000 3,503,000 3,328,000 259,000 683,000 2,368,000 1,379,000 1,842,000 757,000 5,397,000 891,000 724,000 548,000 587,000 326,000 436,000 286,000 455,000 330,000 466,000 1,381,000 205,000 1,576,000 1,098,000 927,000 1,003,000 1,402,000 138,000 560,000 297,000 222,000 88,000 518,000 185,000 473,000 113,000 
        prepayments and other
      23,237,000 24,370,000 21,729,000 17,182,000 15,883,000 14,973,000 15,138,000 16,889,000 12,374,000 12,434,000 16,115,000 18,077,000 17,424,000 20,070,000 12,616,000 8,064,000 8,408,000 5,156,000 5,416,000 4,348,000 5,175,000 4,215,000 4,264,000 3,445,000 10,859,000 3,292,000 6,996,000 4,808,000 3,580,000 6,301,000 3,058,000 3,721,000 3,767,000 2,791,000 2,952,000 4,392,000 3,362,000 3,956,000 3,602,000 3,630,000 3,578,000 3,253,000 5,285,000 5,069,000 5,854,000 6,509,000    2,339,000 4,689,000 4,099,000 2,677,000 2,935,000 5,007,000 3,754,000 4,966,000 2,178,000 5,054,000 2,363,000 3,212,000 1,482,000 1,878,000 2,912,000 1,704,000 1,217,000 1,684,000 1,606,000 2,519,000 2,351,000 4,864,000 3,253,000 2,112,000 2,162,000 1,750,000 1,687,000 2,679,000 3,073,000 1,077,000 837,000 587,000 2,185,000 1,013,000 1,479,000 1,167,000 
        current assets held for sale
       179,000                                                                                    
        total current assets
      116,118,000 132,980,000 173,738,000 223,729,000 200,838,000 237,927,000 236,799,000 194,787,000 217,744,000 228,141,000 218,115,000 199,367,000 179,374,000 200,097,000 123,264,000 156,874,000 96,203,000 88,289,000 64,084,000 59,324,000 49,312,000 63,978,000 54,398,000 62,234,000 79,049,000 69,758,000 74,543,000 69,914,000 62,026,000 58,794,000 44,591,000 59,439,000 49,507,000 36,452,000 36,529,000 38,405,000 38,496,000 38,475,000 41,550,000 38,642,000 58,319,000 63,742,000 73,730,000 101,509,000 111,109,000 113,050,000 169,211,000 162,773,000 146,324,000 167,464,000 126,873,000 127,283,000 141,284,000 149,125,000 168,593,000 171,764,000 171,250,000 162,923,000 148,886,000 162,170,000 146,770,000 139,357,000 135,477,000 126,999,000 118,419,000 114,709,000 112,013,000 112,991,000 109,308,000 152,410,000 137,071,000 135,759,000 111,838,000 109,883,000 100,576,000 93,661,000 80,258,000 84,181,000 92,382,000 85,432,000 74,741,000 57,945,000 63,314,000 56,757,000 47,393,000 
        crude oil, natural gas and ngls properties and equipment
      641,780,000 586,095,000 623,736,000 587,263,000 562,926,000 538,103,000 531,589,000 548,415,000 457,419,000 459,786,000                                                                            
        other noncurrent assets:
                                                                                           
        value added tax and other receivables
      9,291,000                                                                                     
        right of use operating lease assets
      22,007,000 16,596,000 14,364,000 15,340,000 16,303,000 17,254,000 2,320,000 580,000 1,444,000 2,378,000 3,510,000 1,639,000 2,211,000 2,777,000 1,705,000 3,435,000 6,872,000 10,227,000 12,984,000 16,259,000 19,454,000 22,569,000 25,700,000 27,918,000 30,448,000 33,383,000 36,852,000 34,124,000 36,631,000                                                         
        right of use finance lease assets
      65,568,000 68,615,000 72,031,000 75,447,000 78,862,000 79,849,000 83,093,000 86,342,000 89,587,000 89,962,000 87,971,000 90,584,000 91,198,000 90,698,000 1,630,000 1,713,000 1,795,000                                                                     
        deferred tax assets
      49,511,000 54,825,000 44,304,000 43,659,000 48,364,000 55,581,000 57,035,000 64,859,000 30,329,000 29,242,000 31,222,000 37,155,000 33,430,000 35,432,000 41,495,000 24,447,000 50,296,000 39,978,000 24,211,000 1,511,000      24,159,000 25,903,000 30,946,000 37,021,000 40,077,000 68,807,000                1,349,000 1,349,000 1,349,000                                     
        abandonment funding
      6,268,000 6,268,000 6,268,000 6,268,000 6,268,000 6,268,000 6,268,000 6,268,000 6,268,000 6,268,000 6,268,000 6,268,000 6,268,000 20,586,000 18,838,000 20,091,000 21,369,000 21,808,000 22,281,000 22,837,000 22,862,000 12,453,000 11,885,000 11,420,000 11,227,000 11,371,000 11,112,000 11,550,000 11,390,000 11,571,000 10,808,000 10,808,000 10,808,000 10,808,000 8,510,000 8,510,000 8,510,000 8,510,000 5,137,000 5,137,000 5,137,000 5,137,000 3,537,000 3,537,000 3,537,000 3,537,000                                        
        other long-term assets
      8,460,000 7,362,000 7,783,000 8,039,000 8,163,000 1,209,000 1,109,000 1,216,000 1,323,000 1,430,000 1,616,000 1,674,000 1,752,000 1,866,000 5,529,000 3,811,000 2,596,000 1,176,000 1,176,000                                                              974,000 942,000 854,000 439,000 379,000 
        noncurrent assets held for sale
       31,826,000                                                                                    
        total assets
      920,662,000 913,375,000 950,433,000 964,922,000 927,103,000 954,950,000 937,903,000 917,364,000 809,147,000 823,216,000 827,828,000 829,013,000 823,983,000 855,641,000 394,773,000 369,564,000 308,510,000 263,090,000 206,260,000 181,503,000 177,137,000 141,232,000 135,437,000 147,657,000 168,692,000 211,537,000 208,986,000 202,067,000 201,500,000 166,312,000 162,361,000 100,276,000 92,185,000 79,633,000 76,535,000 79,143,000 79,997,000 81,032,000 78,202,000 91,657,000 116,690,000 123,958,000 195,079,000 234,287,000 240,630,000 248,849,000 362,856,000 334,317,000 297,061,000 308,167,000 273,621,000 272,223,000 272,129,000 267,956,000 295,148,000 290,126,000 294,928,000 275,015,000 263,630,000 258,559,000 241,932,000 238,400,000 234,497,000 219,292,000 206,557,000 202,999,000 202,486,000 212,259,000 217,374,000                 
        liabilities and shareholders' equity
                                                                                           
        current liabilities:
                                                                                           
        accounts payable
      30,552,000 44,661,000 17,007,000 21,972,000 18,793,000 11,756,000 15,047,000 22,605,000 16,747,000 22,152,000 43,924,000 40,716,000 49,982,000 59,886,000 30,276,000 19,151,000 10,509,000 18,797,000 8,433,000 5,545,000 10,121,000 16,690,000 4,702,000 9,250,000 14,804,000 15,897,000 6,658,000 8,016,000 4,174,000 8,083,000 7,219,000 10,876,000 10,269,000 11,584,000 13,849,000 14,968,000 9,745,000 19,096,000 11,553,000 23,579,000 43,671,000 46,848,000                                            
        accounts with joint venture owners
      7,181,000 3,193,000 1,489,000 2,000 2,462,000 3,324,000 984,000 896,000 3,836,000 5,990,000 1,151,000 6,284,000 3,098,000   13,863,000  3,233,000 2,325,000 2,013,000 1,721,000 4,945,000 5,984,000 9,259,000 11,271,000  11,828,000 3,781,000 4,421,000 304,000 5,496,000 9,807,000                                                      
        accrued liabilities and other
      166,893,000 106,444,000 107,317,000 99,893,000 115,017,000 107,710,000 103,848,000 115,386,000 60,345,000 66,924,000 76,470,000 84,104,000 80,707,000 91,392,000 83,148,000 99,220,000 91,409,000 49,444,000 39,857,000 34,980,000 33,777,000 17,184,000 14,426,000 16,299,000 22,990,000 29,773,000 23,886,000 19,539,000 15,158,000 14,138,000 17,662,000 16,893,000 13,477,000 12,991,000 10,098,000 9,568,000 8,962,000 10,506,000 13,551,000 14,701,000 19,803,000 19,868,000                                            
        operating lease liabilities - current portion
      6,668,000 5,744,000 4,002,000 3,901,000 3,724,000 3,512,000 335,000 574,000 1,466,000 2,396,000 3,539,000 1,667,000 2,040,000 2,314,000 1,200,000 3,123,000 6,429,000 9,642,000 12,671,000 13,288,000 13,088,000 12,890,000 12,696,000 12,274,000 12,050,000 11,990,000 12,432,000 10,500,000                                                          
        finance lease liabilities - current portion
      12,394,000 12,119,000 12,649,000 13,171,000 13,526,000 13,383,000 12,560,000 11,751,000 10,974,000 10,079,000 7,810,000 7,684,000 6,907,000 7,811,000 317,000 326,000 341,000                                                                     
        foreign income taxes payable
      2,513,000 19,656,000 23,774,000 21,978,000 24,153,000 42,043,000 43,473,000 12,361,000 37,836,000 19,261,000 33,256,000 12,575,000 5,424,000  28,056,000 29,221,000 8,819,000 3,128,000  12,533,000 6,384,000 860,000                                                                
        current liabilities held for sale
       183,000                                                                                    
        total current liabilities
      226,201,000 192,000,000 166,238,000 160,917,000 177,675,000 181,728,000 176,247,000 163,573,000 131,204,000 127,475,000 166,823,000 153,703,000 148,831,000 162,090,000 143,011,000 164,911,000 117,514,000 84,257,000 63,293,000 68,366,000 65,104,000 52,576,000 37,823,000 50,498,000 65,687,000 63,750,000 58,341,000 47,136,000 43,267,000 41,044,000 47,343,000 58,193,000 51,252,000 46,588,000 46,847,000 48,346,000 50,165,000 55,554,000 50,010,000 46,354,000 66,441,000 66,716,000 57,790,000 64,269,000 66,754,000 38,540,000 56,095,000 51,357,000 40,178,000 45,829,000 40,448,000 33,219,000 40,125,000 45,063,000 25,511,000 20,794,000 33,461,000 25,090,000 22,408,000 19,597,000 14,699,000 26,702,000 34,304,000 32,066,000 30,699,000 33,728,000 33,598,000 36,286,000 41,052,000 63,167,000 28,006,000 42,513,000 22,772,000 24,104,000 15,810,000 20,925,000 14,462,000 26,686,000 13,215,000 12,712,000 10,860,000 8,946,000 18,605,000 20,162,000 13,061,000 
        asset retirement obligations
      80,528,000 78,406,000 84,259,000 82,798,000 81,053,000 78,592,000 65,868,000 65,373,000 47,644,000 47,343,000 45,201,000 42,958,000 42,327,000 41,695,000 35,247,000 34,809,000 34,377,000 33,949,000 33,077,000 32,633,000 32,196,000 17,334,000 17,105,000 16,643,000 16,421,000 15,844,000 15,709,000 15,214,000 15,014,000 14,816,000 14,459,000 20,708,000 20,434,000 20,163,000 19,202,000 18,947,000 18,851,000 18,612,000 16,849,000 16,632,000 16,418,000 16,166,000 16,198,000 15,951,000 15,290,000 14,846,000 13,659,000 11,732,000 11,630,000 11,464,000 11,298,000 11,135,000 10,750,000 10,368,000 9,853,000 9,463,000 14,874,000 14,528,000 14,945,000 14,592,000 15,078,000 13,425,000 11,638,000 11,427,000 10,878,000 10,666,000 10,664,000 10,465,000 10,271,000 10,071,000 8,379,000 7,358,000 7,247,000 6,728,000 6,626,000 6,264,000 6,169,000 6,029,000 5,515,000 3,649,000 3,609,000 3,615,000 2,625,000 1,998,000 1,350,000 
        operating lease liabilities - net of current portion
      15,469,000 11,183,000 10,862,000 11,903,000 12,915,000 13,903,000 2,006,000   33,000 82,000 130,000 367,000 686,000 521,000 332,000 461,000 587,000 312,000 2,968,000 6,361,000 9,671,000 12,993,000 15,631,000 18,379,000 21,371,000 24,397,000 23,624,000                                                          
        finance lease liabilities - net of current portion
      53,803,000 57,256,000 60,235,000 63,162,000 66,198,000 67,377,000 70,912,000 74,388,000 77,802,000 78,293,000 77,862,000 79,856,000 80,470,000 78,248,000 1,251,000 1,331,000 1,411,000                                                                     
        deferred tax liabilities
      47,757,000 63,630,000 62,966,000 74,583,000 85,168,000 93,904,000 103,356,000 111,535,000 71,228,000 73,581,000 76,120,000 82,895,000 79,854,000 81,223,000 41,057,000      1,809,000  2,802,000 8,098,000 11,758,000                                                             
        long-term debt
      152,000,000 60,000,000 60,000,000 60,000,000                                                                                  
        noncurrent liabilities held for sale
       7,403,000                                                                                    
        total liabilities
      575,758,000 469,878,000 444,560,000 453,363,000 423,009,000 453,367,000 436,871,000 423,716,000 336,557,000 344,434,000 383,457,000 377,007,000 368,808,000 389,536,000 221,087,000 201,383,000 153,763,000 118,793,000 96,682,000 103,967,000 105,543,000 79,774,000 70,766,000 90,926,000 112,279,000 101,817,000 99,099,000 86,395,000 85,202,000 56,485,000 63,066,000 79,793,000 73,088,000 69,344,000 69,816,000 72,218,000 75,921,000 81,390,000 74,993,000 72,330,000 97,859,000 97,882,000 88,988,000 95,220,000 97,044,000 68,386,000 84,754,000 63,089,000 51,808,000 57,293,000 51,746,000 44,354,000 50,875,000 55,431,000 37,994,000 32,737,000 50,665,000 41,948,000 39,583,000 36,419,000 32,007,000 42,157,000 47,872,000 45,373,000 43,157,000 45,894,000 45,762,000 52,951,000 56,323,000 78,238,000 41,385,000 54,871,000 35,019,000 35,832,000 27,436,000 32,189,000 25,631,000 37,715,000 23,730,000 21,361,000 19,469,000 14,061,000 21,730,000 22,910,000 15,411,000 
        commitments and contingencies
                                                                                           
        shareholders’ equity:
                                                                                           
        preferred stock, 25 par value; 500,000 shares authorized, none issued
                                                                                           
        common stock,0.10 par value; 160,000,000 shares authorized, 123,017,656 shares issued and 104,258,253 shares outstanding at both march 31, 2026 and december 31, 2025
      12,302,000                                                                                     
        additional paid-in capital
      369,896,000 368,536,000 367,023,000 365,332,000 363,955,000 362,578,000 361,147,000 359,803,000 358,827,000 357,498,000 356,424,000 355,206,000 354,499,000 353,606,000 78,500,000 77,919,000 77,272,000 76,700,000 76,346,000 75,778,000 75,064,000 74,437,000 74,061,000 73,739,000 73,681,000 73,549,000 73,263,000 73,059,000 72,417,000 72,358,000 72,229,000 72,013,000 71,400,000 71,251,000 71,106,000 70,985,000 70,440,000 70,268,000 70,210,000 70,744,000 69,977,000 69,118,000 68,355,000 67,677,000 67,016,000 64,351,000 63,656,000 57,755,000 56,502,000 55,455,000 52,133,000 51,186,000 50,354,000 48,816,000 71,474,000 71,123,000 68,370,000 66,122,000 67,423,000 66,980,000 66,579,000 64,314,000 62,172,000 61,903,000 61,300,000 57,550,000 55,641,000 55,148,000 54,746,000 53,983,000 52,161,000 51,899,000 51,541,000 51,294,000 50,012,000 49,373,000 48,813,000 48,093,000 47,022,000 46,852,000 45,446,000 44,662,000 43,983,000 43,882,000 43,585,000 
        accumulated other comprehensive loss
       -498,000 -1,885,000 -86,000                                                                                  
        less treasury stock, 18,759,403 shares, at cost, at both march 31, 2026 and december 31, 2025
      -78,733,000                                                                                     
        retained earnings
      41,439,000 141,890,000 207,166,000 212,744,000 210,921,000 209,761,000 204,666,000 200,281,000 178,709,000 177,486,000 140,114,000 140,674,000 140,639,000 147,024,000 132,808,000 127,884,000 114,723,000 104,488,000 70,126,000 38,405,000 32,521,000 22,652,000 26,247,000 18,629,000 18,033,000 70,833,000 69,819,000 73,738,000 75,080,000 68,579,000 58,155,000           -11,764,000 69,015,000 102,683,000 107,887,000 146,892,000 245,230,000 242,118,000 217,404,000 224,442,000 198,066,000 195,680,000 188,558,000 181,370,000 200,289,000 200,183,000 189,757,000 180,739,000 172,018,000 169,619,000 157,833,000 146,594,000 137,710,000 125,258,000 115,222,000 109,249,000 107,025,000 102,905,000 104,586,000 117,205,000 124,655,000 102,311,000 89,284,000 87,483,000 85,499,000 76,703,000 72,986,000 68,431,000 63,142,000 49,552,000 39,062,000     
        total shareholders’ equity
      344,904,000                154,747,000 144,297,000 109,578,000 77,536,000       109,887,000 115,672,000                                                          
        total liabilities and shareholders’ equity
      920,662,000                308,510,000 263,090,000 206,260,000 181,503,000       208,986,000 202,067,000                                                          
        trade, net of allowances for credit loss and other of 0.0 million and 0.2 million, respectively
       39,924,000                                                                                    
        accounts with joint venture owners, net of allowance for credit losses of 2.7 million and 1.5 million, respectively
       5,420,000                                                                                    
        egypt receivables and other
       2,277,000 2,726,000 3,991,000 3,235,000                                                                                 
        value added tax and other receivables, net of allowances for credit loss and other of 0.0 million and 0.8 million, respectively
       7,149,000                                                                                    
        other long-term liabilities
           17,863,000 18,482,000 8,847,000 8,679,000 17,709,000 17,369,000 17,465,000 16,959,000 25,594,000       73,000 193,000         1,264,000 892,000                                                      
        common stock
       12,302,000    12,230,000 12,230,000 12,230,000 12,194,000 12,140,000 12,134,000 12,121,000 12,012,000 11,948,000 7,013,000 7,013,000 6,986,000 6,956,000 6,953,000 6,942,000 6,833,000 6,790,000 6,782,000 6,782,000 6,780,000 6,767,000 6,748,000 6,745,000 6,733,000 6,717,000 6,709,000 6,696,000 6,644,000 6,644,000 6,638,000 6,635,000 6,614,000 6,611,000 6,619,000 6,594,000 6,604,000 6,604,000 6,592,000 6,578,000 6,554,000 6,519,000 6,515,000 6,415,000 6,408,000 6,408,000 6,331,000 6,317,000 6,317,000 6,314,000 6,310,000 6,310,000 6,258,000 6,238,000 6,312,000 6,305,000  6,282,000 6,230,000 6,228,000 6,228,000 6,157,000 6,116,000 6,112,000 6,112,000 6,112,000 6,111,000 6,110,000 6,105,000 6,105,000 6,031,000 6,023,000 6,014,000 6,006,000 5,951,000 5,942,000 5,867,000 5,831,000 5,767,000 5,756,000 5,728,000 
        less treasury stock, 18,759,403 and 18,560,931 shares, respectively, at cost
       -78,733,000 -78,733,000 -78,733,000                                                                                  
        total shareholders' equity
       443,497,000 505,873,000 511,559,000 504,094,000 501,583,000 501,032,000 493,648,000 472,590,000 478,782,000 444,371,000 452,006,000 455,175,000 466,105,000 173,686,000 168,181,000     71,594,000 61,458,000 64,671,000 56,731,000 56,413,000 109,720,000   116,298,000 109,827,000 99,295,000 20,483,000 19,097,000 10,289,000 6,719,000 6,925,000 4,076,000 -358,000 3,209,000 19,327,000                                              
        total liabilities and shareholders' equity
       913,375,000 950,433,000 964,922,000 927,103,000 954,950,000 937,903,000 917,364,000 809,147,000 823,216,000 827,828,000 829,013,000 823,983,000 855,641,000 394,773,000 369,564,000     177,137,000 141,232,000 135,437,000 147,657,000 168,692,000 211,537,000   201,500,000 166,312,000 162,361,000 100,276,000 92,185,000 79,633,000 76,535,000 79,143,000 79,997,000 81,032,000 78,202,000 91,657,000                                              
        trade, net of allowances for credit loss and other of 0.2 million and 0.2 million, respectively
        109,473,000 132,879,000 120,252,000                                                                                 
        accounts with joint venture owners, net of allowance for credit losses of 2.5 million and 1.5 million, respectively
        6,665,000                                                                                   
        value added tax and other receivables, net of allowances for credit loss and other of 0.4 million and 0.8 million, respectively
        6,550,000                                                                                   
        common stock,0.10 par value; 160,000,000 shares authorized, 123,017,656 and 122,304,124 shares issued, 104,258,253 and 103,743,163 shares outstanding, respectively
        12,302,000 12,302,000                                                                                  
        accounts with joint venture owners, net of allowance for credit losses of 2.2 million and 1.5 million, respectively
         351,000                                                                                  
        value added tax and other receivables, net of allowances for credit loss and other of 0.2 million and 0.8 million, respectively
         5,177,000                                                                                  
        accounts with joint venture owners, net of allowance for credit losses of 1.8 million and 1.5 million, respectively
          2,847,000                                                                                 
        value added tax and other receivables, net of allowances for credit loss and other of 0.5 million and 0.8 million, respectively
          5,379,000                                                                                 
        common stock,0.10 par value; 160,000,000 shares authorized, 122,419,929 and 122,304,124 shares issued, 103,819,046 and 103,743,163 shares outstanding, respectively
          12,242,000                                                                                 
        accumulated other comprehensive income
          -4,845,000 -4,962,000 1,013,000 -642,000 426,000 2,880,000 844,000 3,060,000 1,054,000 1,179,000                                                                        
        less treasury stock, 18,600,883 and 18,560,931 shares, respectively, at cost
          -78,179,000                                                                                 
        trade, net of allowances for credit loss and other of 0.2 million and 0.5 million, respectively
           94,778,000                                                                                
        accounts with joint venture owners, net of allowance for credit losses of 1.5 million and 0.8 million, respectively
           179,000                                                                                
        egypt receivables and other, net of allowances for credit loss and other of 0.0 million and 4.6 million, respectively
           35,763,000                                                                                
        value added tax and other receivables, net of allowances for credit loss and other of 0.8 million and 0.0 million, respectively
           10,094,000                                                                                
        less treasury stock, 18,560,931 and 17,051,320 shares, respectively, at cost
           -78,024,000                                                                                
        trade, net of allowances for credit loss and other of 0.7 million and 0.5 million, respectively
            84,344,000                                                                               
        accounts with joint venture owners, net of allowance for credit losses of 1.2 million and 0.8 million, respectively
            1,131,000                                                                               
        egypt receivables and other, net of allowances for credit loss and other of 0.0 million and 4.6 million
            42,163,000                                                                               
        value added tax and other receivables, net of allowances for credit loss and other of 0.0 million
            10,228,000                                                                               
        less treasury stock, 18,560,961 and 17,051,320 shares, respectively, at cost
            -78,024,000 -78,024,000                                                                              
        trade, net of allowances for credit loss and other of 0.2 and 0.5 million, respectively
             64,934,000                                                                              
        accounts with joint venture owners, net of allowance for credit losses of 0.8 and 0.8 million, respectively
             721,000 35,000                                                                             
        egypt receivables and other, net of allowances for credit loss and other of 11.2 and 4.6 million, respectively
             41,903,000                                                                              
        value added tax and other receivables, net of allowances for credit loss and other of 0.0 and 0.0 million, respectively
             6,109,000 5,033,000                                                                             
        trade, net of allowances for credit loss and other of 0.8 and 0.5 million, respectively
              44,897,000                                                                             
        egypt receivables and other, net of allowances for credit loss and other of 6.0 and 4.6 million, respectively
              44,591,000                                                                             
        less treasury stock, 18,485,306 and 17,051,320 shares, respectively, at cost
              -77,566,000                                                                             
        trade, net of allowances for credit loss and other of 0.5 and 0.0 million, respectively
               44,888,000                                                                            
        accounts with joint venture owners, net of allowance for credit losses of 0.8 and 0.3 million, respectively
               1,814,000                                                                            
        foreign income taxes receivable
                   2,769,000     2,056,000    1,124,000                                                               
        egypt receivables and other, net of allowances for credit loss and other of 4.6 and 0.0 million, respectively
               45,942,000                                                                            
        value added tax and other receivables, net of allowances for credit loss and other of 0.0 million and 8.4 million, respectively
               4,214,000                                                                            
        current liabilities - discontinued operations
               673,000 673,000 673,000 673,000 687,000 14,000 7,000 7,000 13,000 7,000 7,000 13,000 7,000 15,000 48,000 395,000 350,000 326,000 4,847,000 4,675,000 15,245,000 15,191,000 15,186,000 15,002,000 15,347,000 15,400,000 15,186,000 18,320,000 18,452,000 18,656,000                                               
        less treasury stock, 17,051,320 and 11,629,823 shares, respectively, at cost
               -71,222,000                                                                            
        accounts with joint venture owners, net of allowance for credit losses of 0.6 and 0.3 million, respectively
                1,635,000                                                                           
        other, net of allowance for credit losses of 3.5 and 0.0 million, respectively
                64,826,000 66,615,000 67,157,000                                                                         
        crude oil and natural gas properties, equipment and other - successful efforts method
                467,877,000 481,740,000 499,953,000 495,272,000 194,711,000 151,718,000 121,935,000 94,324,000 74,102,000 74,202,000 78,192,000 37,036,000 38,845,000                                                               
        value added tax and other receivables, net of allowance of 9.9 million and 8.4 million, respectively
                9,462,000                                                                           
        less treasury stock, 15,626,752 and 11,629,823 shares, respectively, at cost
                -65,145,000                                                                           
        accounts with joint venture owners, net of allowance for credit losses of 0.5 and 0.3 million, respectively
                 216,000                                                                          
        value added tax and other receivables, net of allowance of 9.5 million and 8.4 million, respectively
                 8,807,000                                                                          
        less treasury stock, 14,207,986 and 11,629,823 shares, respectively, at cost
                 -59,055,000                                                                          
        accounts with joint venture owners, net of allowance for credit losses of 0.3 million in both periods presented
                  25,000                                                                         
        value added tax and other receivables, net of allowance of 9.0 million and 8.4 million, respectively
                  8,026,000                                                                         
        less treasury stock, 12,797,892 and 11,629,823 shares, respectively, at cost
                  -53,029,000                                                                         
        accounts with joint venture owners, net of allowance of 0.0 million in both periods presented
                   15,830,000 7,931,000 692,000 3,764,000 345,000 1,050,000 77,000 152,000                                                                 
        value added tax and other receivables, net of allowance of 8.7 million and 5.7 million, respectively
                   7,150,000                                                                        
        less treasury stock, 11,629,823 and 10,939,323 shares, respectively, at cost
                   -47,652,000                                                                        
        value added tax and other receivables, net of allowance of 6.7 million and 5.7 million, respectively
                    5,846,000                                                                       
        less treasury stock, 11,057,521 and 10,939,323 shares, respectively, at cost
                    -44,635,000 -44,635,000                                                                      
        value added tax and other receivables, net of allowance of 6.4 million and 5.7 million, respectively
                     5,723,000                                                                      
        value added tax and other receivables, net of allowance of 6.1 million and 5.7 million, respectively
                      5,692,000                                                                     
        liabilities and shareholders’ equity
                                                                                           
        less treasury stock, 11,003,316 and 10,939,323 shares, respectively, at cost
                      -44,234,000                                                                     
        value added tax and other receivables, net of allowance of 5.7 million and 2.3 million, respectively
                       5,536,000                                                                    
        less treasury stock, 10,939,323 and 10,366,376 shares, respectively, at cost
                       -43,847,000 -43,847,000                                                                   
        value added tax and other receivables, net of allowance of 5.8 million and 2.3 million, respectively
                        5,670,000                                                                   
        value added tax and other receivables, net of allowance of 5.6 million and 2.3 million, respectively
                         5,618,000                                                                  
        less treasury stock, 10,834,941 and 10,366,376 shares, respectively, at cost
                         -43,589,000                                                                  
        value added tax and other receivables, net of allowance of 5.1 million and 2.3 million, respectively
                          5,565,000                                                                 
        less treasury stock, 10,521,720 and 10,366,376 shares, respectively, at cost
                          -42,824,000                                                                 
        accounts with joint venture owners, net of allowance of 0.0 million and 0.5 million, respectively
                           3,587,000  134,000 117,000                                                             
        value added tax and other receivables, net of allowance of 2.3 million and 1.0 million, respectively
                           4,271,000                                                                
        less treasury stock, 10,366,376 and 9,649,216 shares, respectively, at cost
                           -42,421,000                                                                
        value added tax and other receivables, net of allowance of 2.1 million and 1.0 million, respectively
                            3,684,000                                                               
        other long term liabilities
                            43,000 56,000 34,000 852,000 652,000 421,000 624,000 625,000   283,000 284,000 284,000 283,000 284,000 284,000                                                
        less treasury stock, 10,363,103 and 9,649,216 shares, respectively, at cost
                            -42,419,000 -42,419,000                                                              
        crude oil and natural gas properties and equipment - successful efforts method:
                                                                                           
        wells, platforms and other production facilities
                             442,665,000 442,866,000 422,651,000 409,995,000 409,862,000 409,283,000 409,487,000  390,404,000 390,279,000 389,935,000 389,204,000 389,192,000 389,302,000 389,231,000 410,301,000 410,423,000 412,593,000 412,593,000 399,485,000 368,734,000 359,105,000 338,641,000 218,390,000 218,422,000 217,805,000 215,701,000 204,903,000 198,571,000 188,911,000 188,208,000  189,317,000 192,207,000 178,653,000  167,355,000 169,413,000 168,139,000 144,935,000 144,456,000 137,190,000 137,122,000 137,553,000 137,440,000 123,438,000 84,693,000 82,145,000 80,921,000 80,463,000 80,052,000 79,557,000 79,322,000 91,736,000 90,398,000 44,010,000 44,018,000 44,123,000 43,805,000 39,924,000 34,127,000 33,775,000 
        work-in-progress
                               7,378,000 5,303,000 1,002,000 1,130,000 519,000                                                        
        undeveloped acreage
                             21,476,000 21,476,000 23,771,000 23,771,000 23,771,000 23,771,000 23,771,000  10,000,000 10,000,000 10,000,000 10,000,000 10,000,000 10,000,000 10,000,000 10,000,000 10,000,000 10,000,000 10,000,000 18,787,000 18,787,000 19,412,000 22,133,000 22,133,000 22,133,000 22,919,000 23,705,000 23,945,000 28,410,000 28,657,000 28,657,000 26,187,000 24,605,000 24,647,000 25,344,000 25,304,000 19,245,000 16,692,000 16,692,000 13,252,000 13,252,000 13,252,000 13,252,000 12,586,000 12,586,000 12,701,000 12,841,000 12,841,000 12,841,000 12,841,000 12,841,000            
        equipment and other
                             10,184,000 9,367,000 11,157,000 12,523,000 10,903,000 9,843,000 9,552,000 8,821,000 8,531,000 9,366,000 9,432,000 10,318,000 10,283,000 10,003,000 9,779,000 10,357,000 10,545,000 10,726,000 10,948,000 15,279,000 13,546,000 11,290,000 11,907,000 8,349,000 6,864,000  6,831,000 6,512,000 7,221,000 6,734,000 7,574,000 6,653,000 6,636,000 6,787,000 4,543,000 3,609,000 2,837,000 2,710,000 2,634,000 3,566,000 5,034,000 4,243,000 3,668,000 3,054,000 2,425,000 1,568,000 2,844,000 3,226,000 2,361,000 2,399,000 2,261,000 1,936,000 1,716,000 1,916,000 1,854,000 3,502,000 3,128,000 2,227,000 1,783,000 1,766,000 1,087,000 917,000 
        accumulated depreciation, depletion, amortization and impairment
                             -432,977,000 -430,209,000 -396,699,000 -394,975,000 -393,669,000 -391,960,000 -390,605,000 -388,660,000 -387,808,000 -387,046,000 -386,146,000 -385,617,000 -384,209,000 -382,622,000 -380,991,000 -405,080,000 -403,888,000                                              
        net crude oil and natural gas properties, equipment and other
                             41,348,000 43,500,000 68,258,000                                                            
        value added tax and other receivables, net of allowance of 1.9 million and 1.0 million, respectively
                             3,812,000                                                              
        foreign taxes payable
                             3,368,000 4,177,000 5,740,000 3,211,000 453,000 4,505,000 3,274,000 1,775,000 5,431,000 1,849,000       3,074,000 2,967,000                                             
        value added tax and other receivables, net of allowance of 1.7 million and 1.0 million, respectively
                              3,543,000                                                             
        less treasury stock, 10,166,126 and 9,649,216 shares, respectively, at cost
                              -42,081,000                                                             
        accounts with joint venture owners, net of allowance of 0.5 million for both years
                               2,714,000                                                            
        current assets - discontinued operations
                                   3,290,000 3,222,000 3,172,000 3,030,000 2,836,000 2,773,000 2,578,000 2,415,000 2,139,000 1,747,000                                               
        value added tax and other receivables, net of allowance of 1.0 million and 2.0 million, respectively
                               3,683,000                                                            
        less treasury stock, 9,649,216 and 7,572,251 shares, respectively, at cost
                               -41,429,000                                                            
        accounts with joint venture owners, net of allowance of 0.5 million for both periods presented
                                113,000 130,000 77,000                                                         
        oil and natural gas properties and equipment - successful efforts method:
                                                                                           
        net oil and natural gas properties, equipment and other
                                56,617,000 51,869,000 52,067,000 52,724,000 34,931,000                                                       
        value added tax and other receivables, net of allowance of 1.3 million and 2.0 million, respectively
                                3,035,000 2,742,000 1,444,000                                                         
        less treasury stock, 8,885,829 and 7,572,251 shares, respectively, at cost
                                -39,943,000                                                           
        less treasury stock, 7,696,150 and 7,572,251 shares, respectively, at cost
                                 -37,870,000                                                          
        operating lease liabilities
                                  10,334,000                                                         
        long-term operating lease liabilities
                                  26,297,000                                                         
        preferred stock, none issued, 500,000 shares authorized, 25 par value
                                                                                           
        less treasury stock, 7,616,699 and 7,572,251 shares, respectively, at cost
                                  -37,932,000                                                         
        accounts with joint venture owners, net of allowance of 0.5 million for both years presented
                                   949,000                                                        
        value added tax and other receivables, net of allowance of 2.0 million and 6.5 million, respectively
                                   2,226,000                                                        
        current portion of long term debt
                                      5,833,000 6,666,000 7,500,000 8,333,000 8,333,000 7,500,000 6,250,000 5,000,000                           5,000,000                1,500,000 1,750,000 2,000,000 
        long term debt, excluding current portion
                                      1,119,000 2,309,000 3,483,000 4,642,000 6,621,000 6,940,000 8,134,000 9,344,000                                              
        less treasury stock, 7,572,251 and 7,581,095 shares, respectively, at cost
                                   -37,827,000                                                        
        accounts with joint venture owners, net of allowance of 0.5 million at september 30, 2018 and december 31, 2017
                                    931,000                                                       
        oil and natural gas properties, at cost - successful efforts method:
                                                                                           
        proved properties
                                    398,072,000                                                       
        unproved properties
                                    16,698,000                                            12,841,000 12,841,000          
        value added tax and other receivables, net of allowance of 2.1 million and 6.5 million at september 30, 2018 and december 31, 2017, respectively
                                    2,306,000                                                       
        less treasury stock, 7,553,947 and 7,581,095 shares at cost
                                    -37,798,000                                                       
        accounts with joint venture owners, net of allowance of 0.5 million at june 30, 2018 and december 31, 2017
                                                                                           
        property and equipment - successful efforts method:
                                                                                           
        net property and equipment
                                     21,127,000 22,599,000 23,221,000 23,905,000 25,266,000 26,683,000 28,019,000 25,578,000 27,080,000 31,162,000 33,373,000 95,329,000 110,414,000 107,006,000 108,124,000 189,610,000 167,452,000 146,836,000 138,524,000 134,569,000 132,720,000 118,622,000 106,608,000 114,311,000 106,118,000 111,434,000 99,848,000 102,500,000 94,166,000 92,939,000 96,820,000 86,797,000 80,070,000 75,915,000 75,566,000 77,904,000 80,808,000 89,798,000 82,287,000 67,515,000 63,856,000 61,618,000 63,992,000 63,555,000 65,515,000 68,091,000 70,507,000 52,423,000 42,659,000 38,999,000 37,198,000 34,099,000 28,806,000 25,770,000 
        value added tax and other receivables, net of allowance of 6.4 million and 6.5 million at june 30, 2018 and december 31, 2017, respectively
                                     6,724,000                                                      
        deferred tax asset
                                     1,260,000 1,260,000 1,260,000         1,349,000 1,349,000 1,349,000 1,349,000    1,349,000 1,349,000 1,349,000 1,349,000 1,349,000 1,349,000 1,349,000 1,349,000 1,349,000 1,349,000 1,349,000 1,349,000 1,349,000 1,349,000 1,349,000 1,349,000 1,349,000 1,349,000 1,349,000 1,349,000 1,349,000 1,435,000 1,435,000 1,435,000 1,457,000 1,257,000 1,257,000 1,257,000 1,257,000 438,000 1,257,000 1,257,000 1,257,000 1,290,000 1,290,000 1,290,000 
        less treasury stock, 7,545,830 and 7,581,095 shares at cost
                                     -37,776,000                                                      
        accumulated deficit
                                     -20,450,000 -20,994,000 -29,653,000 -33,084,000 -32,762,000 -35,045,000 -39,304,000 -35,687,000 -20,088,000                                              
        accounts with partners, net of allowance of 0.5 million at march 31, 2018 and december 31, 2017
                                      88,000                                                     
        value added tax and other receivables, net of allowance of 6.6 million and 6.5 million at march 31, 2018 and december 31, 2017, respectively
                                      7,043,000                                                     
        accounts with partners
                                      4,822,000   291,000 4,805,000  1,639,000 12,220,000    3,330,000 4,812,000  5,429,000 1,618,000 1,732,000 3,268,000 4,885,000  4,935,000 14,737,000      11,532,000 16,596,000 16,180,000 3,102,000 8,772,000 9,461,000 13,558,000 5,807,000 1,265,000 326,000 3,796,000 814,000 130,000 5,415,000 3,829,000 2,880,000   5,540,000 4,450,000 2,322,000 3,430,000 2,255,000 4,043,000 1,875,000 2,757,000 
        less treasury stock 7,581,095 shares at cost as of march 31, 2018 and december 31, 2017
                                      -37,953,000                                                     
        accounts with partners, net of allowance of 0.5 million at december 31, 2017 and december 31, 2016
                                       3,395,000                                                    
        value added tax and other receivables, net of allowance of 6.5 million and 4.7 million at december 31, 2017 and december 31, 2016, respectively
                                       6,925,000                                                    
        shareholders’ equity
                                                                                           
        less treasury stock, 7,581,095 and 7,555,095 shares at cost
                                       -37,953,000                                                    
        accounts with partners, net of allowance of 0.5 million at september 30, 2017 and december 31, 2016
                                        2,748,000                                                   
        value added tax and other receivables, net of allowance of 6.2 million and 4.7 million at september 30, 2017 and december 31, 2016, respectively
                                        6,624,000                                                   
        less treasury stock, 7,564,212 and 7,555,095 shares at cost
                                        -37,941,000                                                   
        accounts with partners, net of allowance of 0.5 million at june 30, 2017 and december 31, 2016
                                         978,000                                                  
        value added tax and other receivables, net of allowance of 5.4 million and 4.7 million at june 30, 2017 and december 31, 2016, respectively
                                         6,044,000                                                  
        less treasury stock, 7,555,095 shares at cost
                                         -37,933,000 -37,933,000                                                 
        accounts with partners, net of allowance of 0.5 million at march 31, 2017 and december 31, 2016
                                          3,000                                                 
        materials and supplies
                                          102,000 84,000 145,000 161,000 174,000 194,000 232,000 254,000 233,000 286,000 1,665,000 503,000  164,000 224,000 642,000 325,000 337,000 376,000 415,000 450,000 235,000 280,000 472,000 472,000 501,000 416,000 416,000 161,000 160,000 408,000 400,000 399,000 425,000 424,000 425,000 396,000 339,000 324,000 324,000 324,000 324,000 329,000 329,000 328,000 290,000 272,000 271,000 271,000 
        value added tax and other receivables, net of allowance of 4.9 million and 4.7 million at march 31, 2017 and december 31, 2016, respectively
                                          5,390,000                                                 
        accounts with partners, net of allowance of 0.5 million and no allowance at december 31, 2016 and 2015, respectively
                                           3,297,000                                                
        value added tax and other receivables, net of allowance of 4.7 million and 4.2 million at december 31, 2016 and 2015, respectively
                                           5,110,000                                                
        deferred finance costs
                                                                                           
        noncurrent assets - discontinued operations
                                                                                           
        less treasury stock, 7,555,095 and 7,514,169 shares at cost
                                           -37,933,000 -37,933,000                                               
        value added tax and other receivables, net of allowance of 4.9 million and 4.2 million at september 30, 2016 and december 31, 2015
                                            5,107,000                                               
        deferred finance charge
                                              1,552,000 1,655,000 1,486,000 1,648,000 1,799,000 1,959,000 1,856,000 1,913,000 1,722,000                                     
        value added tax and other receivables, net of allowance of 4.8 million and 4.2 million at june 30, 2016 and december 31, 2015
                                             4,968,000                                              
        less treasury stock, 7,545,978 and 7,514,169 shares at cost
                                             -37,923,000                                              
        accounts with partners, net of allowance of 7.6 million at december 31, 2015
                                              23,139,000                                             
        accumulated depreciation, depletion and amortization
                                              -402,157,000 -400,168,000 -340,321,000 -314,337,000 -300,014,000 -289,714,000 -187,037,000 -182,825,000  -172,202,000 -167,528,000 -163,411,000 -159,301,000 -155,968,000 -153,541,000 -140,922,000 -134,733,000 -129,395,000 -118,003,000 -111,604,000 -105,318,000 -99,457,000 -92,510,000 -88,178,000 -83,944,000 -80,260,000 -76,116,000 -71,902,000 -66,476,000 -61,379,000 -58,867,000 -52,945,000 -47,816,000 -42,984,000 -38,674,000 -33,941,000 -29,969,000 -25,465,000 -24,196,000 -22,438,000 -21,027,000 -19,222,000 -18,218,000 -16,823,000 -15,533,000 
        value added tax receivable, net of allowance of 4.7 million and 4.2 million at march 31, 2016 and december 31, 2015
                                              4,690,000                                             
        liabilities and equity
                                                                                           
        long term debt
                                              15,000,000 15,000,000 15,000,000 15,000,000 15,000,000 15,000,000 15,000,000                     5,000,000 5,000,000 5,000,000 5,000,000 5,000,000 5,000,000 5,000,000 5,000,000 5,000,000 5,000,000 5,000,000 5,000,000 5,000,000 5,000,000 1,500,000 500,000 750,000 1,000,000 
        vaalco energy inc. shareholders’ equity:
                                                                                           
        less treasury stock, 7,545,977 and 7,514,169 shares at cost
                                              -37,923,000                                             
        retained deficit
                                              -19,827,000                                             
        total equity
                                              18,831,000 26,076,000 106,091,000 139,067,000 143,586,000 180,463,000 278,102,000 271,227,000 245,253,000 250,874,000    212,525,000 257,154,000 257,389,000 244,263,000 233,067,000 224,047,000 222,140,000 209,925,000 196,243,000 186,625,000 173,919,000 163,400,000 157,105,000 156,724,000 159,308,000 161,051,000                 
        total liabilities and equity
                                              116,690,000 123,958,000 195,079,000 234,287,000 240,630,000      273,621,000 272,223,000 272,129,000 267,956,000 295,148,000 290,126,000 294,928,000  263,630,000 258,559,000 241,932,000 238,400,000 234,497,000 219,292,000 206,557,000 202,999,000 202,486,000 212,259,000 217,374,000                 
        accounts with partners, net of allowance of 7.6 million at december 31, 2015 and 2014
                                               27,856,000                                            
        other, net of allowance of 2.4 million at december 31, 2014
                                               42,000 569,000                                           
        work in progress
                                                2,099,000 23,684,000 17,213,000 25,157,000 127,775,000 102,858,000 74,311,000 64,489,000 66,737,000 61,929,000 53,621,000 38,137,000 44,528,000 26,482,000 22,526,000 20,703,000 13,185,000 16,333,000 9,442,000 8,812,000 17,554,000 5,506,000 5,174,000 1,784,000 827,000 259,000 18,567,000 43,288,000 28,170,000 20,678,000 13,731,000 11,822,000 7,895,000 5,577,000 4,408,000 3,720,000 29,107,000 17,951,000 13,676,000 10,832,000 10,627,000 10,415,000 6,611,000 
        value added tax receivable, net of allowance of 4.2 million at december 31, 2015
                                               4,221,000                                            
        less treasury stock, 7,514,169 and 7,393,714 shares at cost
                                               -37,882,000                                            
        accounts with partners, net of allowance of 7.6 million at september 30, 2015 and december 31, 2014
                                                17,930,000                                           
        value added tax receivable, net of allowance of 5.1 million at september 30, 2015
                                                3,818,000                                           
        accounts payable and accrued liabilities
                                                57,790,000 60,939,000 61,942,000 38,540,000   38,446,000 42,561,000 35,563,000 33,219,000 35,190,000 30,326,000 25,511,000 20,794,000 33,461,000 25,090,000 22,408,000 19,597,000 14,699,000 26,702,000 29,644,000 27,939,000 30,699,000 33,728,000 28,598,000 19,077,000 29,999,000 57,773,000 28,006,000 40,414,000 22,772,000 23,904,000 15,810,000 11,794,000 12,095,000 26,686,000 12,635,000 11,632,000 9,771,000 8,555,000 16,702,000 18,009,000 9,274,000 
        less treasury stock, 7,508,699 and 7,393,714 shares at cost
                                                -37,871,000 -37,871,000                                          
        accounts with partners, net of allowance of 7.6 million at june 30, 2015 and december 31, 2014
                                                 19,054,000                                          
        other, net of allowance of 2.4 million at june 30, 2015 and december 31, 2014
                                                 6,278,000                                          
        accounts with partners, net of allowance 7.6 million at march 31, 2015 and december 31, 2014
                                                  30,283,000                                         
        other, net of allowance of 2.4 million at march 31, 2015 and december 31, 2014
                                                  6,089,000                                         
        other assets:
                                                                                           
        less treasury stock, at cost
                                                  -37,871,000 -37,299,000 -37,299,000 -35,061,000 -35,061,000 -35,431,000 -34,655,000 -25,314,000 -23,975,000 -23,975,000 -23,975,000 -23,975,000 -23,975,000 -23,975,000 -25,665,000 -25,665,000 -25,665,000 -25,665,000 -24,472,000 -24,472,000 -24,472,000 -21,515,000 -18,623,000 -12,030,000 -11,422,000 -11,422,000 -11,422,000 -11,422,000 -3,853,000 -2,552,000 -266,000 -266,000 -266,000 -266,000 -266,000 -266,000 -266,000 -266,000 -266,000 -266,000 -266,000 
        accounts with partners, net of allowance 7.6 million in 2014 and 2013
                                                   10,903,000                                        
        other, net of allowance of 2.4 million in 2014, and zero in 2013
                                                   3,285,000                                        
        total liabililities and equity
                                                   248,849,000    308,167,000        275,015,000                            
        cash and cash equivalent
                                                    133,498,000 118,567,000 80,721,000                                     
        accounts with partners, net of allowance of 7.6 million at september 30, 2014 and december 31, 2013
                                                    2,969,000                                       
        other, net of allowance of 1.8 million at september 30, 2014, and zero allowance at december 31, 2013
                                                    5,404,000                                       
        prepayments and others
                                                    5,884,000 2,528,000 6,312,000                                     
        property and equipment - successful efforts method
                                                                                           
        accounts payable and other liabilities
                                                    50,666,000 49,739,000                                      
        owners' equity
                                                                                           
        total liabilities and owners' equity
                                                    362,856,000 334,317,000                                      
        revenues:
                                                                                           
        oil and gas sales
                                                    24,486,000 52,098,000 28,071,000                                     
        operating costs and expenses
                                                                                           
        production expense
                                                    7,145,000 4,848,000                                      
        exploration expense
                                                    598,000 3,293,000                                      
        depreciation, depletion and amortization
                                                    4,289,000 6,995,000 4,160,000                                     
        general and administrative expense
                                                    3,967,000 3,134,000                                      
        bad debt expense and other income
                                                    1,800,000                                       
        total operating cost and expenses
                                                    17,799,000 18,270,000                                      
        operating income
                                                    6,687,000 33,828,000 -650,000                                     
        other income
                                                                                           
        interest income
                                                    19,000 17,000 29,000                                     
        total other income
                                                    183,000 -108,000                                      
        income before income taxes
                                                    6,870,000 33,720,000 -912,000                                     
        income tax expense
                                                    -3,761,000 -9,009,000 -6,126,000                                     
        net income
                                                    3,109,000 24,712,000 -7,038,000                                     
        earnings per share - basic:
                                                                                           
        basic net income per share attributable to vaalco energy, inc. common shareholders
                                                    50 430 -120                                     
        earnings per share - diluted:
                                                                                           
        diluted net income per share attributable to vaalco energy, inc. common shareholders
                                                    50 430 -120                                     
        basic weighted-average shares outstanding
                                                    57,304,000 56,951,000 56,860,000                                     
        diluted weighted-average shares outstanding
                                                    57,868,000 57,537,000 56,860,000                                     
        accounts with partners, net of allowance of zero at june 30, 2014 and 7.6 million at december 31, 2013
                                                     1,490,000                                      
        accounts with partners, net of allowance of zero at march 31, 2014 and 7.6 million at december 31, 2013
                                                      40,963,000                                     
        materials & supplies
                                                      468,000                                     
        equipment & other
                                                      7,801,000                                     
        accumulated depreciation , depletion and amortization
                                                      -176,000,000                                     
        total liabilities & owners' equity
                                                      297,061,000                                     
        operating costs & expenses
                                                                                           
        production expenses
                                                      9,650,000                                     
        exploration expenses
                                                      11,323,000                                     
        general and administrative expenses
                                                      3,588,000                                     
        bad debt expense and other incomes
                                                                                           
        total operating expenses
                                                      28,721,000                                     
        total other incomes
                                                      -262,000                                     
        accounts with partners, net of allowance of 7.6 million in 2013 and 6.0 million in 2012
                                                       307,000                                    
        accounts with partners, net of allowance of 7.4 million and 6.0 million at september 30, 2013 and december 31, 2012, respectively
                                                        4,799,000                                   
        property and equipment—successful efforts method:
                                                                                           
        vaalco energy, inc. shareholders’ equity:
                                                                                           
        total vaalco energy, inc. shareholders’ equity
                                                        221,875,000 227,869,000 221,254,000  254,098,000 253,641,000 240,410,000  220,088,000 217,239,000 205,049,000   168,917,000    152,135,000                  
        accounts with partners, net of allowance of 7.2 million and 6.0 million at june 30, 2013 and december 31, 2012, respectively
                                                         4,821,000                                  
        accounts with partners, net of allowance of 6.9 million and 6.0 million at march 31, 2013 and december 31, 2012 respectively
                                                          1,268,000                                 
        accounts with partners, net of allowance of 6.0 million in 2012 and 4.4 million in 2011
                                                           689,000                                
        other liabilities
                                                            2,630,000 2,480,000 2,330,000 2,330,000 2,230,000 2,230,000 2,230,000 2,030,000 1,930,000 1,880,000 1,580,000 1,500,000 1,500,000 1,200,000                  
        total vaalco energy inc. shareholders’ equity
                                                           212,525,000    229,124,000    191,525,000 181,640,000   151,441,000 150,159,000  154,022,000                 
        noncontrolling interest
                                                            3,056,000 3,748,000 3,853,000 3,943,000 3,959,000 4,901,000 4,876,000 4,718,000 4,985,000 5,002,000 5,122,000 5,664,000 6,565,000 7,173,000 7,029,000                 
        accounts with partners, net of allowance of 5.4 million and 4.4 million at september 30, 2012 and december 31, 2011, respectively
                                                            8,545,000                               
        wells, platforms and other
                                                            190,484,000    178,405,000                           
        accounts with partners, net of allowance of 5.0 million and 4.4 million at june 30, 2012 and december 31, 2011, respectively
                                                             2,135,000                              
        accounts with partners, net of allowance of 4.7 million and 4.4 million at march 31, 2012 and december 31, 2011 respectively
                                                              13,649,000                             
        accounts with partners, net of allowance of 4.4 million in 2011
                                                               6,974,000                            
        funds in escrow
                                                                991,000 11,043,000 11,386,000 14,932,000 5,543,000 5,539,000 5,616,000 5,572,000 5,528,000 6,946,000 6,912,000 7,445,000 2,520,000 4,764,000 4,764,000 4,764,000 4,764,000 4,764,000 4,764,000 4,764,000    1,130,000 3,704,000 1,160,000 1,156,000 
        accounts with partners, net of allowance of 4.1 million at sept. 30, 2011
                                                                8,898,000                           
        63,022,805 and 62,822,805 shares issued with 6,005,547 and 6,005,547 shares in treasury at march 31, 2011 and december 31, 2010, respectively
                                                                  6,302,000                         
        other long term assets
                                                                       502,000 347,000 526,000 484,000 347,000 347,000 262,000 293,000 355,000 418,000 480,000 894,000 1,154,000 783,000 810,000      
        total vaalco energy inc. shareholder’s equity
                                                                      158,278,000                     
        total
                                                                           252,030,000 222,005,000 212,185,000 186,057,000 186,558,000 176,669,000 171,772,000 161,350,000 167,942,000 147,682,000 130,989,000 116,796,000 98,162,000 100,373,000 88,104,000 75,641,000 
        liabilities and stockholders’ equity
                                                                                           
        income taxes payable
                                                                               200,000            
        minority interest in consolidated subsidiaries
                                                                           7,914,000 9,115,000 8,416,000 7,961,000 8,396,000 7,957,000 7,750,000 8,172,000 7,963,000 8,103,000 7,548,000 7,218,000 5,786,000 6,090,000 4,656,000 5,015,000 
        stockholders’ equity:
                                                                                           
        total stockholders’ equity
                                                                           165,878,000 171,505,000 148,898,000 143,077,000 142,330,000 141,276,000 131,833,000 127,547,000 122,264,000 115,849,000 102,080,000 90,109,000 78,315,000 72,553,000 60,538,000 55,215,000 
        property and equipment – successful efforts method:
                                                                                           
        current liabilities of discontinued operations
                                                                                    580,000 1,080,000 1,089,000 391,000 403,000 403,000 1,787,000 
        current assets of discontinued operations
                                                                                        78,000 78,000 78,000 
        long term liabilities of discontinued operations
                                                                                           
        convertible preferred stock, 25 par value, 500,000 shares authorized; 0 and 6667 shares issued and outstanding at december 31, 2005 and 2004, respectively
                                                                                           
        retained earnings/
                                                                                       28,088,000 23,069,000 11,166,000 6,168,000 
        commitments and contingencies:
                                                                                           
        convertible preferred stock, 25 par value, 500,000 shares authorized; 0 and 6,667 shares issued and outstanding at september 30, 2005 and december 31, 2004, respectively
                                                                                           
        convertible preferred stock, 25 par value, 500,000 shares authorized; 0 and 6,667 shares issued and outstanding at june 30, 2005 and december 31, 2004, respectively
                                                                                           
        convertible preferred stock, 25 par value, 500,000 shares authorized; 0 and 6,667 shares issued and outstanding at march 31, 2005 and december 31, 2004, respectively
                                                                                           
      Cashflow Statements:
      Quarterly
      Annual
        Unit: USD2026-03-31 2025-12-31 2025-09-30 2025-06-30 2025-03-31 2024-12-31 2024-09-30 2024-06-30 2024-03-31 2023-12-31 2023-09-30 2023-06-30 2023-03-31 2022-12-31 2022-09-30 2022-06-30 2022-03-31 2021-12-31 2021-09-30 2021-06-30 2021-03-31 2020-12-31 2020-09-30 2020-06-30 2020-03-31 2019-12-31 2019-09-30 2019-06-30 2019-03-31 2018-12-31 2018-09-30 2018-06-30 2018-03-31 2017-12-31 2017-09-30 2017-06-30 2017-03-31 2016-12-31 2016-09-30 2016-06-30 2016-03-31 2015-12-31 2015-09-30 2015-06-30 2015-03-31 2014-12-31 2014-09-30 2014-06-30 2014-03-31 2013-12-31 2013-09-30 2013-06-30 2013-03-31 2012-12-31 2012-09-30 2012-06-30 2012-03-31 2011-12-31 2011-09-30 2011-06-30 2011-03-31 2010-12-31 2010-09-30 2010-06-30 2010-03-31 2009-12-31 2009-09-30 2009-06-30 2009-03-31 2008-12-31 2008-09-30 2008-06-30 2008-03-31 2007-12-31 2007-09-30 2007-06-30 2007-03-31 2006-12-31 2006-09-30 2006-06-30 2006-03-31 2005-12-31 2005-09-30 2005-06-30 2005-03-31 
                                                                                             
          cash flows from operating activities:
                                                                                             
          net income
        -93,764,000 -58,603,000 1,101,000 8,381,000 7,730,000 11,663,000 10,990,000 28,151,000 7,686,000 43,991,000 6,141,000 6,752,000 3,470,000 17,754,000 6,868,000 15,104,000 12,164,000 34,362,000 31,721,000 5,884,000 9,869,000 -3,595,000 7,618,000 596,000 -52,800,000 1,014,000 -3,919,000 -1,033,000 6,501,000 10,424,000 78,605,000 544,000 8,659,000 3,431,000 -322,000 2,283,000 4,259,000   -261,000 -8,063,000 -80,779,000 -33,668,000 -5,204,000 -39,005,000 -98,338,000 3,112,000 24,714,000 -7,038,000 26,376,000 2,386,000 7,122,000 7,188,000 -18,919,000 1,412,000 12,319,000 10,527,000 10,702,000 3,455,000 13,509,000 12,896,000 10,116,000 13,933,000 11,414,000 6,924,000 2,822,000 5,078,000 -39,000 -12,005,000 -7,451,000 22,345,000 13,027,000 1,801,000 1,984,000 8,796,000 3,717,000 4,555,000 5,289,000 13,590,000 10,490,000 10,974,000 5,019,000 11,903,000 4,998,000 7,262,000 
          adjustments to reconcile net income to net cash from operating activities:
                                                                                             
          depreciation, depletion and amortization
        18,212,000 30,845,000 20,555,000 28,273,000 30,305,000 37,047,000 47,031,000 33,132,000 25,824,000 20,344,000 32,538,000 38,003,000 24,417,000 26,316,000 8,963,000 8,191,000 4,673,000 4,132,000 6,970,000 5,810,000 4,148,000 1,266,000 2,212,000 2,801,000 3,103,000 2,112,000 1,509,000 1,909,000 1,553,000 2,307,000 1,130,000 1,035,000 1,124,000 918,000 1,700,000 1,970,000 1,869,000 1,139,000 1,601,000 1,945,000 2,241,000 9,517,000 8,259,000 9,299,000 5,935,000 4,642,000 4,289,000 6,995,000 4,160,000 5,918,000 3,954,000 3,431,000 3,626,000 3,198,000 4,861,000 6,851,000 5,003,000 7,800,000 5,153,000 6,545,000 6,098,000 7,161,000 4,542,000 4,422,000 3,896,000 5,071,000 4,413,000 5,622,000 5,654,000 2,730,000 6,034,000 5,239,000 4,934,000 4,413,000 4,809,000 4,067,000 4,663,000 1,660,000 1,762,000 1,451,000 1,847,000 1,034,000 1,428,000 1,319,000 1,588,000 
          loss on canada assets divestment
        1,202,000                                                                                     
          amortization of deferred financing costs
        392,000  348,000 315,000 146,000                                                                                 
          deferred tax benefit
        -10,559,000  -12,170,000 -5,880,000 -1,519,000                                                                                 
          unrealized foreign exchange gain
        190,000                  -34,000 92,000 -400,000 151,000   -22,000    -12,000    -75,000                  22,000  -216,000 -142,000  -183,000 -28,000 112,000 -102,000 796,000 -1,115,000 -174,000 140,000 -93,000 -133,000 -230,000                 
          exploration expense
        13,801,000        647,000                                                                  426,000 5,056,000 1,185,000 523,000 712,000 252,000 125,000 133,000 2,302,000 149,000 
          stock-based compensation expense
        1,377,000  1,707,000 1,501,000 1,475,000                                                                                 
          derivative instruments loss
        70,581,000 -3,643,000 1,093,000 -400,000 74,000  -381,000 -257,000 847,000 -2,500,000 2,320,000 -31,000 -21,000 290,000 -3,778,000 9,542,000 31,758,000                                                                     
          cash settlements received on matured derivative contracts
        -957,000                     6,498,000 718,000 383,000   1,131,000                                                        
          credit losses and other
        271,000 -649,000 483,000 29,000 -27,000 1,082,000 -252,000 3,662,000 1,812,000  822,000 680,000 935,000                                                                         
          equipment and other expensed in operations
        1,890,000 1,635,000 1,489,000 1,476,000 972,000                                                                                 
          change in operating assets and liabilities:
                                                                                             
          trade receivables
        13,372,000 68,784,000 23,365,000 -12,466,000 -34,671,000      34,572,000 -26,565,000 21,357,000 12,702,000 53,493,000 -25,658,000 -22,152,000 -22,464,000 28,801,000 -4,998,000 -12,647,000 6,080,000 3,441,000 -9,521,000 14,335,000 -6,832,000 6,325,000 -4,792,000 2,871,000 -11,907,000 9,607,000 -1,347,000 -4,704,000 3,647,000 862,000 -1,569,000 255,000 -463,000 1,423,000 -1,940,000 -70,000 1,631,000 1,181,000 11,044,000 318,000 -13,500,000 15,558,000 -21,498,000 16,885,000 -16,486,000 25,741,000 -1,725,000 -16,541,000 3,786,000 8,244,000 -19,348,000 9,444,000 1,057,000 -94,000 -705,000 3,723,000 7,050,000 830,000 -13,357,000 -416,000 320,000 2,069,000 -1,829,000 778,000 12,909,000 -7,222,000 1,614,000 2,952,000 -1,833,000 -7,443,000 4,868,000 -7,750,000 7,484,000 -15,000 1,911,000 -10,535,000 1,279,000 4,795,000 -3,150,000 -4,041,000 
          accounts with joint venture owners
        2,876,000 4,339,000 -3,439,000 1,381,000 -2,234,000 3,982,000 -136,000 -3,920,000 -683,000 4,481,000 -6,656,000 2,835,000 18,911,000 -7,811,000 -21,401,000 16,935,000 -6,652,000 1,613,000 -661,000 367,000 275,000 -4,626,000 -3,141,000 -2,029,000 13,812,000 -14,429,000 8,063,000 -695,000 4,986,000 -5,214,000 -5,242,000                                                       
          egypt receivables and other
        -307,000 268,000 959,000 -1,030,000 32,230,000 6,038,000 -426,000 -1,314,000 1,346,000                                                                             
          crude oil inventory
        -8,183,000 7,184,000 -7,697,000 6,729,000 1,451,000 -4,665,000 2,535,000 10,056,000 -438,000 7,339,000 1,513,000 978,000 -8,443,000 919,000 9,613,000 -9,233,000 -3,041,000 963,000 551,000 -2,287,000 5,795,000 -3,125,000 72,000 3,012,000 -2,793,000 -297,000 -222,000 721,000 -489,000 1,447,000 -934,000 -19,000 1,984,000 -2,103,000 -208,000 85,000 -124,000 -61,000 -66,000 216,000 -281,000 318,000 -510,000 1,245,000 213,000 -440,000 -1,092,000 780,000 -996,000 2,072,000 151,000 -2,231,000 287,000 1,034,000 -668,000 61,000 -498,000 3,518,000 -2,999,000 -167,000 -176,000 39,000 -261,000 110,000 -150,000 169,000 -124,000 136,000 914,000 -1,176,000 1,371,000 -478,000 -171,000 76,000 399,000 -1,264,000 422,000 -263,000 -75,000 -134,000 430,000 -333,000 288,000 -360,000 611,000 
          premiums paid on commodity derivative contracts
        -1,314,000                                                                                     
          prepayments and other
        -773,000 -4,439,000 -5,585,000 -904,000 -769,000 -2,970,000 1,982,000 -1,551,000 -2,278,000 3,545,000 1,267,000 -1,052,000 983,000 -3,267,000 -2,690,000 2,446,000 -876,000 536,000 9,703,000 -5,382,000 -3,240,000 27,000 -374,000 214,000 -993,000 965,000 -804,000 -973,000 -202,000 433,000 751,000 40,000 -804,000 87,000 1,164,000 -159,000 554,000 944,000 -249,000 14,000 -317,000 1,817,000 -220,000 862,000 655,000     2,350,000 -590,000 -1,422,000 256,000 2,081,000 -1,253,000 1,203,000 -2,797,000 2,855,000 -2,882,000 849,000 -1,708,000 392,000 1,052,000 -1,195,000 -550,000 422,000 -85,000 971,000 -123,000 2,513,000 -1,611,000 -1,141,000 50,000 -413,000 -62,000 991,000 394,000 -1,998,000 -239,000 -250,000 1,598,000 -1,172,000 466,000 -312,000 -7,000 
          value added tax and other receivables
        216,000 1,399,000 -535,000 868,000 5,310,000 -1,397,000 -3,706,000 727,000 -2,734,000 6,146,000 -1,417,000 -941,000 -1,361,000 178,000 -3,122,000 -1,173,000 -1,076,000 -254,000 -839,000 -351,000 -149,000 -349,000 -224,000 -325,000 -370,000 -389,000 -54,000 -20,000 738,000 -119,000 -409,000 -332,000 83,000 -242,000 -1,653,000 -813,000 -317,000 -411,000                                                
          accounts payable
        -21,490,000 43,787,000 -4,092,000 3,993,000 7,219,000 -4,164,000 -8,307,000 5,257,000 -5,984,000 -18,019,000 814,000 -4,158,000 -6,739,000 19,791,000 4,986,000 9,275,000 -10,132,000 8,764,000 911,000 -3,970,000 -6,627,000 8,476,000 -3,499,000 -4,689,000 -1,130,000 8,165,000 -1,424,000 3,193,000 -3,923,000 905,000 -3,779,000 756,000 -1,291,000 -2,047,000 -976,000 4,792,000 -9,066,000 8,880,000 -9,128,000 -12,457,000 -2,754,000                                             
          foreign income taxes payable
        -17,004,000  1,790,000                                                                                   
          accrued liabilities and other
        -9,255,000 -3,476,000 -1,920,000 -10,563,000 1,253,000 8,937,000 -15,228,000 -8,145,000 -19,068,000 4,532,000 -3,939,000 12,040,000 -19,177,000 -18,218,000 -4,081,000 16,449,000 12,814,000 393,000 -6,776,000 8,604,000 -576,000 1,902,000 48,000 -1,260,000 -2,073,000 69,000 234,000 4,439,000 -581,000 356,000 -2,380,000 1,232,000 149,000 2,482,000 545,000 532,000 -1,509,000 -4,610,000 261,000 -1,468,000 1,231,000                                             
          net cash from operating activities
        -39,226,000 145,173,000 16,445,000 18,343,000 32,706,000 44,533,000 47,791,000 -438,000 21,832,000 51,786,000 94,242,000 35,563,000 42,006,000 -853,000 60,692,000 69,765,000 -758,000 3,396,000 33,561,000 11,418,000 1,742,000 8,389,000 -1,178,000 -7,388,000 27,627,000 -2,579,000 12,470,000 3,096,000 13,485,000 1,136,000 5,384,000 15,589,000 15,067,000 3,427,000 659,000 -1,525,000 4,098,000 -3,416,000 -1,665,000 1,809,000 -180,000 1,356,000 10,566,000 27,554,000 -601,000 -31,364,000 14,194,000 64,102,000 -23,542,000 38,596,000 46,350,000   49,155,000 16,785,000 12,857,000 15,161,000 35,243,000 13,281,000 27,266,000 13,795,000 10,583,000 19,951,000 651,000 14,330,000 3,759,000 -873,000 17,817,000 2,790,000 41,051,000 10,274,000 40,928,000 14,325,000 21,566,000 -4,865,000 21,475,000 5,056,000 23,080,000 15,102,000 18,297,000 7,957,000 1,210,000 17,751,000 11,211,000 5,729,000 
          capital expenditures
          -9,677,000 -11,060,000 -3,128,000 -1,840,000 -4,809,000 -1,939,000 -1,740,000 -6,032,000 -14,981,000 -9,786,000 -5,059,000 -3,418,000 -7,459,000 -1,157,000 -483,000 
          free cash flows
        -39,226,000 145,173,000 16,445,000 18,343,000 32,706,000 44,533,000 47,791,000 -438,000 21,832,000 51,786,000 94,242,000 35,563,000 42,006,000 -853,000 60,692,000 69,765,000 -758,000 3,396,000 33,561,000 11,418,000 1,742,000 8,389,000 -1,178,000 -7,388,000 27,627,000 -2,579,000 12,470,000 3,096,000 13,485,000 1,136,000 5,384,000 15,589,000 15,067,000 3,427,000 659,000 -1,525,000 4,098,000 -3,416,000 -1,665,000 1,809,000 -180,000 1,356,000 10,566,000 27,554,000 -601,000 -31,364,000 14,194,000 64,102,000 -23,542,000 38,596,000 46,350,000   49,155,000 16,785,000 12,857,000 15,161,000 35,243,000 13,281,000 27,266,000 13,795,000 10,583,000 19,951,000 651,000 14,330,000 3,759,000 -873,000 17,817,000 2,790,000 31,374,000 -786,000 37,800,000 12,485,000 16,757,000 -6,804,000 19,735,000 -976,000 8,099,000 5,316,000 13,238,000 4,539,000 1,210,000 10,292,000 10,054,000 5,246,000 
          cash flows from investing activities:
                                                                                             
          property and equipment expenditures, including exploration expense
        -78,074,000                                                                                     
          proceeds from the canada assets divestment
        25,474,000                                                                                     
          acquisition of oil and gas properties
          -2,787,000 -247,000                                                                                 
          net cash from investing activities
        -52,600,000 -100,128,000 -48,302,000 -48,686,000 -58,774,000 -41,001,000 -12,431,000 -32,069,000 -16,618,000 -19,858,000 -22,533,000 -27,132,000 -27,700,000 -19,358,000 -43,575,000 -37,130,000 -23,148,000 -8,099,000 -4,158,000 -7,750,000 -19,056,000 -2,011,000 -2,220,000 -8,117,000 -11,980,000 -6,966,000 -2,219,000 -375,000 -788,000 -922,000 -12,229,000 -553,000 -423,000 -526,000 -344,000 3,000 -782,000 -2,942,000 14,883,000 -12,207,000 -1,021,000 -16,689,000 -30,913,000 -13,065,000 -22,343,000 -33,359,000 -16,812,000 -26,683,000 -24,544,000 -10,927,000 -15,674,000 -22,153,000 -19,190,000 -28,385,000 -16,319,000 -16,761,000 -10,372,000 -9,333,000 -11,607,000 -5,507,000 -1,929,000 -19,460,000 -6,523,000 -9,912,000 -3,478,000 202,000 4,913,000 -15,340,000 -38,741,000 -17,621,000 -13,379,000 -3,128,000 -8,241,000 -12,870,000 3,539,000 -2,417,000 -10,853,000 -31,409,000 -10,315,000 -5,777,000 -2,545,000 -1,894,000 -10,552,000 -3,533,000 -693,000 
          cash flows from financing activities:
                                                                                             
          proceeds from borrowings
        92,000,000                                                                                   
          dividend distribution
        -6,687,000 -6,673,000 -6,680,000 -6,557,000 -6,570,000 -6,569,000 -6,605,000 -6,579,000 -6,463,000 -6,619,000 -6,701,000 -6,717,000 -6,735,000 -3,538,000 -1,944,000 -1,943,000 -1,929,000                                                                     
          payments for treasury shares
          -554,000 -155,000                                                                                 
          deferred financing costs paid
        -1,160,000  -190,000 -1,792,000 -5,118,000                                                                                 
          payments of finance leases
        -3,176,000                                                                                     
          net cash from in financing activities
        80,977,000 -10,226,000 -10,319,000 47,708,000 -14,786,000 -10,784,000 -8,697,000 -9,112,000 -14,455,000 -14,437,000 -14,500,000                                                                           
          effects of exchange rate changes on cash
        -32,000 30,000 -43,000 69,000 27,000 1,000 229,000 -25,000 -208,000 168,000 -36,000 24,000 -309,000                                                                         
          net change in cash, cash equivalents and restricted cash
        -10,881,000 34,849,000 -42,219,000 17,434,000 -40,827,000 -7,251,000 26,892,000 -41,644,000 -9,449,000 17,659,000 57,173,000 -5,888,000 458,000 -30,309,000 14,964,000 28,831,000 -26,024,000 -4,639,000 29,397,000 3,609,000 -17,370,000 6,439,000 -3,398,000 -15,843,000 14,995,000 -10,908,000 8,204,000 2,534,000 12,639,000 189,000 -6,779,000 8,398,000 12,561,000                                                     
          cash, cash equivalents and restricted cash at beginning of period
        66,963,000 97,726,000 129,178,000 59,776,000 72,314,000 61,317,000  59,124,000  46,655,000  32,286,000                                                     
          cash, cash equivalents and restricted cash at end of period
        56,082,000 34,849,000 -42,219,000 17,434,000 56,899,000 -7,251,000 26,892,000 -41,644,000 119,729,000 17,659,000 57,173,000 -5,888,000 60,234,000 -30,309,000 14,964,000 28,831,000 46,290,000 -4,639,000 29,397,000 3,609,000 43,947,000  -3,398,000 -15,843,000 74,119,000  8,204,000 2,534,000 59,294,000  -6,779,000 8,398,000 44,847,000                                                     
          bargain purchase gain and measurement period adjustment
                                                                                             
          impairment loss on assets held for sale
                                                                                             
          non-cash exploration expense
                                                                                             
          deferred taxes
             -9,023,000 -355,000 -3,966,000 -3,441,000 -559,000 -3,923,000 -853,000 2,471,000 5,265,000 24,009,000 25,849,000 -10,318,000 -15,767,000 -22,700,000 -3,320,000 1,809,000 -2,813,000 -5,299,000 -3,367,000 35,638,000 1,755,000 5,058,000 5,925,000 1,742,000                                                         
          stock-based compensation
             1,073,000 1,479,000 985,000 898,000 991,000 1,078,000 605,000 649,000 -100,000 36,000 842,000 1,422,000 361,000 25,000 514,000 1,559,000 2,211,000 -248,000 720,000 -2,569,000 736,000 1,150,000 -103,000 1,723,000 -1,476,000 1,108,000 2,360,000 314,000 165,000 150,000 629,000 154,000 -915,000 -509,000 757,000 859,000 786,000 692,000                                           
          cash settlements paid on matured derivative contracts
         93,000 -355,000 91,000 123,000 -438,000 18,000 -9,000 -24,000 -65,000 1,000 -4,000 -59,000  -9,124,000 -21,059,000 -12,500,000                                                                     
          cash settlements paid on asset retirement obligations
             -53,000 -233,000 -53,000 -29,000 -1,951,000 -4,422,000 -251,000 -123,000                                                                         
          other long-term assets
             1,061,000 1,109,000 1,716,000 -1,017,000 888,000 1,434,000 457,000 1,051,000                                                                         
          foreign income taxes receivable
                                                                                             
          acquisition of crude oil and natural gas properties
                         -4,647,000 -17,858,000                                                                 
          proceeds from the issuances of common stock
             447,000 80,000 211,000 108,000 274,000 55,000 59,000 198,000 64,000 252,000 706,000 347,000     123,000 26,000 60,000 47,000 11,000 88,000   1,000 38,000     -11,000                                           
          treasury shares
             1,000 -1,000 -458,000 -6,344,000 -6,077,000 -6,090,000 -6,026,000 -5,377,000 -3,017,000 -401,000 -387,000 -258,000 -765,000 -403,000 -2,000 -338,000 -652,000 -1,486,000 -2,073,000 -247,000 -105,000 -36,000                                                        
          deferred financing costs
                  -53,000   -534,000 -84,000                                                                       
          payments of finance lease
         -3,508,000 -3,449,000 -3,389,000 -2,943,000 -4,216,000 -2,092,000 -2,074,000 -2,095,000 -1,904,000 -1,867,000 -1,678,000 -1,701,000 -2,846,000 -125,000                                                                       
          bargain purchase gain
             6,366,000   1,412,000     -7,651,000                                                                 
          property and equipment expenditures
          -48,302,000 -45,899,000 -58,527,000 -41,466,000 -12,431,000 -32,481,000 -16,618,000 -19,858,000 -22,533,000 -27,132,000 -27,700,000 -56,044,000 -43,575,000 -37,130,000 -23,148,000 -8,099,000 -4,158,000 -3,103,000 -1,198,000 2,309,000 -2,220,000 -8,117,000 -11,980,000 -6,966,000 -2,219,000 -375,000 -788,000   -553,000 -423,000 -513,000 -268,000 -264,000 -768,000 4,076,000 -112,000 -11,378,000 -1,291,000 -16,713,000 -31,035,000 -13,126,000 -28,070,000 -24,075,000 -16,812,000 -26,541,000 -24,751,000 -10,741,000 -15,305,000 -22,461,000 -18,372,000 -28,408,000 -16,286,000 -16,482,000 -10,739,000 -9,010,000 -11,638,000 -5,850,000 -5,475,000 -20,071,000 -6,519,000 -9,989,000 -3,433,000 245,000 -2,216,000 -20,894,000 -38,475,000                 
          cash acquired in business combination, net of cash paid
                                                                                             
          unrealized foreign exchange loss
           -1,368,000 1,673,000 621,000 -417,000 -94,000 -102,000 -880,000 619,000 -199,000 512,000 -1,957,000 554,000 244,000 116,000                   -452,000 -128,000 -2,207,000 -176,000 2,749,000 -398,000      22,000                                     
          cash settlements paid on exercised stock appreciation rights
             -154,000 -96,000 -49,000 -233,000 -22,000 -600,000 -205,000 -220,000 -118,000 -2,081,000 -852,000     -230,000                                                           
          other operating loss
              -132,000 166,000 -262,000 255,000                                                                           
          foreign income taxes receivable/
            -18,035,000  30,890,000 -25,475,000 18,912,000                                                                             
          derivative instruments (gain) loss
                            5,954,000                                                                 
          other operating income
                            360,000 786,000 37,000 15,000 31,000                                                             
          equipment and other incomed in operations
                                                                                             
          trade
              -19,410,000 -20,037,000 -9,000                                                                             
          cash paid in business combination, net of cash acquired
                                                                                            
          operational expenses associated with equipment and other
               727,000 302,000 636,000 3,756,000 -556,000 -640,000 1,099,000 235,000 478,000 240,000 1,580,000 314,000 274,000 247,000 183,000 341,000 499,000 578,000 131,000 -2,000 49,000 -109,000 -91,000 -44,000 1,567,000 172,000                                                     
          deferred tax liability
                   169,000 -3,250,000                                                                         
          bargain purchase loss
                                                                                             
          loss from discontinued operations, net of tax
                 2,000 13,000 14,000 26,000 20,000 12,000                                                                     
          credit (recovery) losses and other
                                                                                             
          net cash from continuing operating activities
                 51,786,000 94,242,000 35,565,000 42,019,000 -838,000 60,711,000 69,785,000 -740,000 3,416,000 33,581,000 11,457,000 1,755,000 8,454,000 -1,156,000 -7,052,000 27,645,000 -2,566,000 17,052,000 3,086,000 13,586,000 1,230,000 5,450,000 15,890,000 15,658,000 3,646,000 814,000 1,940,000 4,682,000 -2,534,000                                                
          net cash from discontinued operating activities
                 -2,000 -13,000 -15,000 -19,000 -20,000 -18,000 -20,000 -20,000 -39,000 -13,000 -65,000 -22,000 -336,000 -18,000 -13,000 -4,582,000 10,000 -101,000 -94,000 -66,000 -301,000 -591,000 -219,000 -155,000 -3,465,000 -584,000 -882,000                                                
          cash acquired from transglobe acquisition
                                                                                             
          net cash from continuing investing activities
                 -19,858,000 -22,533,000 -27,132,000 -27,700,000 -19,358,000 -43,575,000 -37,130,000 -23,148,000 -8,099,000 -4,158,000 -7,750,000 -19,056,000 -2,011,000 -2,220,000 -8,117,000 -11,980,000 -6,966,000 -2,219,000 -375,000 -788,000 -922,000 -12,229,000 -553,000 -423,000 -526,000 -344,000 3,000 -782,000                                                 
          net cash from discontinued investing activities
                                                                                             
          net cash from in continuing financing activities
                 -14,437,000 -14,500,000                                                                           
          net cash from discontinued financing activities
                                                                                             
          other receivables
                  2,562,000 441,000 -2,309,000 -6,386,000 -1,961,000 780,000 -1,723,000 -9,830,000 225,000 -78,000 -53,000 72,000 2,190,000 -102,000 -755,000 -313,000 61,000 -153,000 311,000 -1,017,000 -290,000 -60,000 37,000 -317,000 216,000 18,000 40,000 -30,000 64,000 39,000 -91,000 2,658,000 -686,000 218,000 -2,774,000 1,065,000 -1,175,000 -1,032,000 -108,000 5,914,000 -2,661,000 -286,000 -3,020,000 -1,179,000 2,041,000 2,058,000 -3,119,000 -715,000 5,630,000 1,193,000 -548,000 1,917,000 -4,910,000 -4,189,000 2,625,000 43,000 -1,801,000 -1,392,000 -9,000 256,000 -502,000 -323,000 141,000 40,000 904,000 242,000 -1,499,000 -312,000 -331,000 -369,000 913,000 -190,000 -583,000 90,000 -342,000 
          foreign income taxes receivable/payable
                  20,681,000 7,151,000 8,193,000 -30,825,000 -1,165,000 20,402,000 5,691,000 5,184,000 -14,589,000 6,149,000 5,524,000 1,995,000                                                                
          net cash from continuing financing activities
                    -13,539,000 -9,880,000 -2,153,000 -3,804,000 -2,118,000 64,000 -6,000 -59,000 -56,000 61,000 -338,000 -652,000 -1,363,000 -2,047,000 -187,000 -58,000 -25,000 66,000 -6,638,000 -2,083,000 -2,095,000 -2,092,000 -2,083,000 455,000                                                 
          net cash from financing activities
                    -13,539,000 -9,880,000 -2,153,000 -3,804,000 -2,118,000 64,000 -6,000 -59,000 -56,000 61,000 -338,000 -652,000 -1,363,000 -2,047,000 -187,000 -58,000 -25,000 66,000 -6,638,000 -2,083,000 -2,095,000 -2,092,000 -2,083,000 455,000 -51,000 -16,000   -11,000 7,000 445,000 276,000 17,549,000 427,000 -1,722,000 2,396,000 -8,919,000   -26,234,000 -1,998,000 1,371,000 -1,599,000 -1,346,000 -3,566,000 99,000 -491,000 -1,112,000 -2,996,000 68,000 -1,438,000 -7,777,000 -8,023,000 -2,106,000 -1,476,000 -1,497,000 -1,986,000 -8,951,000 -2,800,000 -2,482,000 -842,000 -817,000 -1,019,000 -370,000 -1,064,000 436,000 3,707,000  -389,000 -1,168,000 -609,000 
          impairment of proved crude oil and natural gas properties
                             30,625,000                                                             
          other amortization
                             60,000 61,000 60,000 60,000 60,000 61,000 60,000 60,000 166,000 131,000 60,000 76,000 92,000 104,000 97,000                                                 
          bad debt expense and other
                     999,000 1,020,000 571,000 492,000 61,000 318,000 395,000 101,000 25,000         -157,000                                                       
          other operating expense
                      5,000                                                                     
          other noncurrent assets
                                                                                             
          cash advance for other long-term assets
                       380,000 -1,452,000                                                                    
          gain on revision of asset retirement obligations
                                                                                            
          income from discontinued operations, net of tax
                                                                                             
          cash settlements received (paid) on matured derivative contracts
                            -1,710,000                                                                 
          loss from discontinued operations
                                                                                             
          income from discontinued operations
                            19,000         80,000 21,000 343,000 52,000 103,000                                                    
          (income) income from discontinued operations
                             57,000 -11,000 -11,000 63,000 37,000 61,000 162,000 -5,671,000                                                         
          debt repayments
                                                                                             
          cash, cash equivalents and restricted cash at beginning of year
                                                                                             
          cash, cash equivalents and restricted cash at end of year
                                                                                             
          derivatives instruments gain
                                                                                             
          unrealized foreign exchange (gain ) loss
                                                                                             
          derivatives instruments (gain) loss
                               756,000 -7,339,000 2,712,000                                                            
          bad debt (recovery) expense and other
                               179,000 810,000                                                             
          foreign taxes payable
                               -1,102,000 -1,284,000 2,518,000 2,743,000 -3,902,000 1,037,000 976,000 -3,656,000 3,582,000 1,849,000       107,000 2,967,000                                             
          unrealized foreign exchange (gain) loss
                                 -4,000                -2,730,000 -123,000                                           
          bad debt (recovery) expense
                                 -371,000 54,000                                                           
          other operating (income) loss
                                 21,000 37,000     248,000   63,000 258,000 5,000 3,000                                             
          acquisitions
                                                                                           
          proceeds from the sale of crude oil and natural gas properties
                                                                                             
          borrowings
                                         4,167,000                                              
          debt repayment
                                     -7,083,000 -2,083,000 -2,084,000 -2,084,000 -2,083,000 -3,750,000                                           -500,000 -500,000 -500,000 -750,000 
          deferred tax assets
                                                                                             
          derivatives instruments loss
                                   -1,911,000 1,912,000                                                         
          bad debt recovery and other
                                    -29,000                                                         
          commodity derivatives (gain) loss
                                                                                             
          cash settlements (paid)/received on matured derivative contracts
                                                                                             
          impairment of proved properties
                                                                                            
          proceeds from the sale of oil and gas properties
                                                                                           
          premiums paid for put options
                                                                                             
          debt issuance costs
                                             -16,000       -333,000 -40,000                                       
          unrealized foreign exchange (gain)/loss
                                      740,000                                                       
          commodity derivatives loss
                                      1,065,000   61,000 921,000 -130,000 180,000 939,000 194,000                                               
          cash settlements received on derivative contracts
                                                                                             
          other operating gain
                                      6,000                                                       
          oil and natural gas properties, equipment and other expenditures
                                                                                             
          proceeds from sale of oil and natural gas properties
                                                                                             
          proceeds from sale of oil and gas properties
                                                                                             
          supplemental disclosure of cash flow information:
                                                                                             
          interest paid
                                                                           15,000 368,000 235,000 30,000 298,000   241,000 70,000 22,000 41,000 49,000 56,000 63,000 
          income taxes paid
                                       2,720,000  2,927,000 5,940,000 3,202,000 2,280,000 2,495,000        6,362,000 5,584,000 9,538,000  9,741,000    17,753,000    17,849,000         6,027,000 2,606,000 6,044,000 20,997,000 25,740,000 20,031,000 16,748,000 14,488,000 8,554,000 10,226,000 3,419,000 6,280,000 8,677,000 12,120,000 6,990,000 8,166,000 6,426,000 10,016,000 
          supplemental disclosure of non-cash investing and financing activities:
                                                                                             
          property and equipment additions incurred but not paid at period end
                                       -93,000 556,000  -44,000 213,000 210,000 292,000 -121,000 -13,461,000 15,572,000                                             
          asset retirement obligation
                                                                                             
          bad debt expense (recovery) and other
                                        -56,000                                                     
          other operating (gain) loss
                                        -24,000                                                     
          accounts with partners
                                        8,129,000 -650,000 -2,068,000 -5,489,000 8,099,000 -1,842,000 2,490,000 10,919,000 4,717,000 -9,926,000 -2,206,000 9,747,000 -14,568,000 -13,364,000 2,334,000 39,358,000 -42,192,000 2,597,000 4,764,000 -8,750,000 -11,260,000 21,531,000 -8,620,000 13,168,000 -7,091,000 1,950,000 -1,427,000 4,972,000 -324,000 -17,738,000 6,203,000 4,816,000 4,097,000 -7,751,000 1,491,000 -2,075,000 -6,821,000 2,412,000 -2,783,000 7,384,000 -1,586,000 -949,000 -12,011,000 6,764,000 7,907,000 -1,090,000 -2,128,000 1,108,000 -1,175,000 1,788,000 -2,168,000 882,000 381,000 
          interest paid, net of capitalized interest
                                        172,000  237,000 278,000 296,000 280,000 274,000 283,000 489,000 218,000 465,000                                           
          dry hole costs and impairment of unproved leasehold
                                                                                             
          bad debt provision
                                         220,000 -49,000 183,000 98,000 645,000 63,000   -51,000        278,000    662,000   315,000 387,000                            
          increase in restricted cash
                                         -13,000 -76,000 -47,000 -14,000                                                 
          net change in cash and cash equivalents
                                         806,000 -1,777,000 -3,605,000 3,771,000 -6,409,000 13,202,000 -10,475,000 -1,201,000 -15,344,000 -20,347,000 14,496,000 -22,499,000 -64,447,000 14,931,000 37,846,000 -49,808,000 30,065,000 21,757,000 -23,933,000 -28,159,000 -5,464,000 -1,532,000 -2,533,000 3,190,000 24,564,000 -1,892,000 21,858,000 11,375,000 -9,989,000 10,432,000 -9,193,000 9,414,000 -3,816,000 -3,983,000 371,000 -37,427,000 21,933,000 -5,091,000 28,849,000 3,284,000 6,214,000 -2,168,000 18,241,000 -6,816,000 -8,699,000 3,723,000 12,956,000 9,119,000 -1,441,000 6,810,000 6,510,000 4,427,000 
          cash and cash equivalents at beginning of year
                                                                                             
          cash and cash equivalents at end of year
                                                                                             
          premiums paid
                                                                                             
          cash and cash equivalents at beginning of period
                                          20,474,000  25,357,000 69,051,000     130,800,000 137,139,000 81,234,000 80,570,000 125,425,000 76,450,000 60,979,000 43,880,000 27,574,000 
          cash and cash equivalents at end of period
                                          -1,777,000 -3,605,000 24,245,000  13,202,000 -10,475,000 24,156,000 -15,344,000 -20,347,000 14,496,000 46,552,000     30,064,000 21,757,000 -23,933,000 102,641,000 -5,464,000 -1,532,000 -2,533,000 140,329,000 24,564,000 -1,892,000 21,858,000 92,609,000 -9,989,000 10,432,000 -9,193,000 89,984,000 -3,816,000 -3,983,000 371,000 87,998,000 21,933,000 -5,091,000 28,849,000 79,734,000 6,214,000 -2,168,000 18,241,000 54,163,000 -8,699,000 3,723,000 12,956,000 52,999,000 -1,441,000 6,810,000 6,510,000 32,001,000 
          asset retirement obligations
                                                                                             
          loss (income) from discontinued operations
                                           168,000 176,000                                                 
          materials and supplies
                                            -18,000 76,000 16,000 13,000 20,000 38,000 22,000 -21,000 53,000 1,379,000 -1,162,000 -35,000 -304,000 60,000 418,000 -317,000 12,000 39,000 39,000 35,000 -215,000 45,000 192,000 29,000 -85,000 -255,000 -1,000 248,000 -8,000 -1,000 26,000 -1,000 1,000 -29,000 -57,000     5,000 -2,000 -37,000 -18,000 -1,000 43,000 
          asset retirement cost capitalized
                                             1,501,000 42,000 -274,000 203,000                                           
          other long term assets
                                                                     502,000   -45,000 -134,000 -1,000    12,000 -12,000           
          decrease in restricted cash
                                             -41,000 14,995,000 13,000 252,000                                             
          proceeds from sales of oil and gas properties
                                                 58,000 340,000                                         
          purchases of treasury stock
                                                                                             
          income from continuing operations
                                                                                             
          amortization of debt issuance cost
                                              56,000 973,000 103,000 -169,000 162,000 151,000 160,000                                         
          other
                                              -842,000 18,000                                    242,000      -412,000 -61,000 -61,000 
          value added tax and other receivable
                                                                                             
          bad debt expense
                                                343,000           262,000 879,000                                 
          value added tax receivable
                                                -690,000                                             
          taxes paid
                                                1,830,000 2,988,000 2,921,000                                           
          receivable from employees for stock option exercises
                                                                                             
          dry hole costs and impairment loss on unproved leasehold
                                                 8,804,000 8,977,000 649,000 27,222,000 2,768,000 10,505,000                                     
          decrease (increase) in restricted cash
                                                      -142,000 207,000                                     
          property and equipment additions incurred during the period but not paid at period end
                                                 -4,822,000 -11,143,000 5,390,000 27,907,000     186,000 2,016,000   39,000 4,319,000   505,000 3,004,000   -2,193,000 4,418,000   3,771,000 -312,000 -6,582,000 7,486,000                 
          gains on disposal of oil and gas properties
                                                  -58,000 -340,000                                         
          impairment loss
                                                  17,988,000 5,821,000 5,399,000                                         
          accounts payable and other liabilities
                                                  7,948,000 -6,895,000 14,477,000 -8,361,000 -6,852,000                                       
          cash flows from operating activities
                                                                                             
          stock based compensation
                                                    1,654,000 624,000 641,000 640,000 1,417,000 405,000 362,000 832,000 1,406,000 351,000 351,000 352,000 1,352,000 315,000 320,000 324,000 1,258,000 324,000 227,000 602,000 742,000 338,000 361,000 402,000 740,000 1,821,000 251,000 247,000 247,000 489,000 551,000 504,000 634,000 485,000 128,000 127,000 325,000     
          cash flows from investing activities
                                                                                             
          decrease/(increase) in restricted cash
                                                    5,387,000                                         
          cash flows from financing activities
                                                                                             
          proceeds from the issuance of common stock
                                                    1,017,000 609,000 4,456,000   3,172,000 422,000   -34,000   651,000 130,000 99,000 1,008,000 387,000 68,000 55,000 1,612,000 136,000 23,000 2,000 12,000   822,000 96,000 109,000 95,000 643,000 111,000 1,291,000 496,000  46,000 392,000 145,000 
          purchase of treasury stock
                                                    -572,000                                         
          cash paid for income taxes
                                                    3,403,000        9,741,000    25,054,000    15,154,000 9,839,000   12,221,000 12,905,000                    
          receivable from employees for stock option exercise
                                                    29,000        135,000    916,000                             
          adjustments to reconcile net income to net cash from operating activities
                                                                                             
          distribution to noncontrolling interest
                                                             -1,998,000 -1,998,000 -1,599,000 -1,997,000 -3,696,000 -1,499,000 -1,498,000 -2,997,000 -1,498,000 -1,498,000 -1,499,000                   
          acquisition of noncontrolling interest
                                                                                             
          supplemental disclosure of cash flow information
                                                                                             
          supplemental disclosure of non cash investing and financing activities
                                                                                             
          operating activities:
                                                                                             
          amortization of debt issuance costs
                                                                             32,000 31,000 62,000 113,000 12,000 299,000 132,000 114,000 143,000 83,000 256,000     
          prepayment and other
                                                      -3,356,000 3,784,000 -3,975,000                                     
          purchase of treasury shares
                                                                         -2,892,000 -6,593,000   -7,569,000 -1,301,000             
          cash and cash equivalent at beginning of period
                                                      130,529,000                                     
          cash and cash equivalent at end of period
                                                      14,931,000 37,846,000 80,721,000                                     
          investment in property and equipment not paid
                                                      7,776,000 3,667,000 11,304,000                               10,000 822,000 -2,471,000    
          accounts payable and accrued liabilities
                                                        -1,918,000    3,280,000    2,382,000    -7,565,000    -3,416,000    -5,846,000 23,637,000 -10,022,000 13,404,000 -1,333,000 8,158,000 3,468,000 41,000 -10,666,000 9,806,000 1,127,000 1,851,000 977,000 -7,050,000 436,000 4,420,000 -651,000 
          debt issuance costs capitalized
                                                        -1,722,000                             -14,000 -114,000 82,000 -289,000     
          gain on disposal of assets
                                                                                             
          dry hole costs
                                                          11,354,000 3,940,000 4,896,000 34,436,000   96,000 -3,000   2,479,000 -121,000 251,000 795,000 594,000 12,138,000 19,846,000 3,019,000 -201,000 6,399,000             
          accounts payable, accrued liabilities and other liabilities
                                                          328,000    2,389,000    2,054,000    -2,340,000    -12,947,000                   
          restricted cash
                                                          -369,000 308,000 -818,000  -33,000 -279,000 367,000                             
          supplemental disclosure of non-cash transactions
                                                                                             
          property and equipment reduction as the result of changes in asset retirement cost estimates
                                                                                             
          supplemental disclosure of non cash transactions
                                                                                             
          property and equipment reductions as the result in changes in asset retirement cost estimates
                                                                                             
          net cash provided (used) by operating activities
                                                            -8,969,000                                 
          supplemental disclosure of non cash flow information
                                                                                             
          property and equipment additions incurred during period but not paid at period end
                                                            11,777,000    12,542,000    566,000    5,215,000                     
          redemption of rights agreement
                                                                     -1,000    1,000                    
          noncontrolling interest distibution declared during the period but not paid at period end
                                                                                             
          reimbursement of property and equipment expenditures by partner
                                                                                           
          cash paid for interest
                                                                         584,000                    
          funds in escrow
                                                                  31,000 343,000 3,546,000   77,000 -45,000   -183,000 -266,000 -4,925,000 -2,520,000 -2,000 -8,000 -4,000 -9,000 -7,000 -14,770,000 -6,000 -6,000 1,125,000  -2,548,000 -11,000 -2,000 
          redemption of rights plan
                                                                       5,000                     
          receivable from employee for stock option exercise
                                                                                             
          deferred tax asset
                                                                             86,000 22,000             
          income taxes payable
                                                                             -200,000      -500,000 700,000 -20,000 -360,000 380,000 -140,000 
          decrease (increase) in funds in escrow
                                                                         -43,000                    
          decrease in funds in escrow
                                                                                             
          supplemental disclosure of non cash investing and financing activity
                                                                                             
          noncontrolling interest distribution declared during the period but not paid at period end
                                                                                             
          distribution to minority interest
                                                                            -1,499,000 -1,499,000 -1,998,000 -1,498,000 -1,499,000 -999,000 -999,000 -999,000 -999,000 -999,000 -999,000   -999,000   
          minority interest in earnings of subsidiary
                                                                                     860,000 1,554,000 1,328,000 1,432,000  1,434,000 640,000 878,000 
          additions to property and equipment
                                                                             -9,677,000 -11,060,000 -3,128,000 -1,840,000 -4,809,000 -1,939,000 -1,740,000 -6,032,000 -14,981,000 -9,786,000 -5,059,000 -3,418,000  -7,459,000 -1,157,000 -483,000 
          other—net
                                                                                             
          change in investment in property and equipment not paid
                                                                             6,131,000 6,492,000   -64,000 548,000 -342,000 -3,925,000         
          minority interest in earnings of subsidiaries
                                                                              2,697,000 1,953,000 1,064,000  1,206,000 577,000 1,208,000         
          supplemental disclosure of non cash flow information change in investment in property and equipment not paid
                                                                                197,000             
          treasury stock purchase
                                                                                             
          conversion of preferred stock and warrants
                                                                                             
          debt issuance and commitment costs capitalized
                                                                                    -115,000         
          loss on asset sales
                                                                                             
          accounts payable discontinued operations
                                                                                     -382,000       
          discontinued operations transaction expense
                                                                                             
          supplemental disclosure of non cash flow information investment in property and equipment not paid
                                                                                             
          borrowings/debt repayment
                                                                                        3,500,000     
          non cash compensation expense
                                                                                             
          amortization of debt discount
                                                                                             
          cumulative effect of accounting change
                                                                                             
          loss on sale of assets
                                                                                             
          change in assets and liabilities that provided (used) cash:
                                                                                             
          benefit from deferred income taxes
                                                                                             
          funds in escrow—net
                                                                                             
          additions to property and equipment—successful efforts method
                                                                                             
          proceeds from issuance of common stock
                                                                                             
          net used in financing activities
                                                                                             
          supplemental disclosure of cash flows information:
                                                                                             
          investing activities:
                                                                                             
          financing activities:
                                                                                             
          gain on sale of assets