XML 56 R61.htm IDEA: XBRL DOCUMENT
v2.4.1.9

Segment Information - Segment Activity (Detail) (USD $) In Thousands, unless otherwise specified | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2014 | Sep. 30, 2014 | Jun. 30, 2014 | Mar. 31, 2014 | Dec. 31, 2013 | Sep. 30, 2013 | Jun. 30, 2013 | Mar. 31, 2013 | Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Revenues | $ 23,037 us-gaap_OilAndGasSalesRevenue | [1] | $ 24,486 us-gaap_OilAndGasSalesRevenue | [1] | $ 52,098 us-gaap_OilAndGasSalesRevenue | [1] | $ 28,071 us-gaap_OilAndGasSalesRevenue | [1] | $ 58,282 us-gaap_OilAndGasSalesRevenue | [1] | $ 37,740 us-gaap_OilAndGasSalesRevenue | [1] | $ 29,118 us-gaap_OilAndGasSalesRevenue | [1] | $ 44,137 us-gaap_OilAndGasSalesRevenue | [1] | $ 127,691 us-gaap_OilAndGasSalesRevenue | $ 169,277 us-gaap_OilAndGasSalesRevenue | $ 195,287 us-gaap_OilAndGasSalesRevenue
Depreciation, depletion and amortization |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 20,086 us-gaap_DepreciationDepletionAndAmortization | 16,929 us-gaap_DepreciationDepletionAndAmortization | 19,913 us-gaap_DepreciationDepletionAndAmortization
Operating income (loss) | (94,270)us-gaap_OperatingIncomeLoss |  | 6,687 us-gaap_OperatingIncomeLoss |  | 33,828 us-gaap_OperatingIncomeLoss |  | (650)us-gaap_OperatingIncomeLoss |  | 35,951 us-gaap_OperatingIncomeLoss |  | 8,104 us-gaap_OperatingIncomeLoss |  | 11,666 us-gaap_OperatingIncomeLoss |  | 21,503 us-gaap_OperatingIncomeLoss |  | (54,406)us-gaap_OperatingIncomeLoss | 77,225 us-gaap_OperatingIncomeLoss | 86,593 us-gaap_OperatingIncomeLoss
Interest income |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 75 us-gaap_InvestmentIncomeInterest | 73 us-gaap_InvestmentIncomeInterest | 145 us-gaap_InvestmentIncomeInterest
Income taxes |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 22,486 us-gaap_IncomeTaxExpenseBenefit | 34,115 us-gaap_IncomeTaxExpenseBenefit | 81,813 us-gaap_IncomeTaxExpenseBenefit
Bad debt and other expenses |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 2,400 egy_ProvisionForDoubtfulAccountsAndOtherExpenses | 3,326 egy_ProvisionForDoubtfulAccountsAndOtherExpenses | 1,621 egy_ProvisionForDoubtfulAccountsAndOtherExpenses
Impairment of proved properties |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 98,341 us-gaap_AssetImpairmentCharges |  | 7,620 us-gaap_AssetImpairmentCharges
Additions to properties and equipment |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 87,111 us-gaap_PropertyPlantAndEquipmentAdditions | 53,691 us-gaap_PropertyPlantAndEquipmentAdditions | 46,366 us-gaap_PropertyPlantAndEquipmentAdditions
Long lived assets | 108,124 us-gaap_NoncurrentAssets |  |  |  |  |  |  |  | 138,524 us-gaap_NoncurrentAssets |  |  |  |  |  |  |  | 108,124 us-gaap_NoncurrentAssets | 138,524 us-gaap_NoncurrentAssets | 106,608 us-gaap_NoncurrentAssets
Total assets | 248,849 us-gaap_Assets |  |  |  |  |  |  |  | 308,167 us-gaap_Assets |  |  |  |  |  |  |  | 248,849 us-gaap_Assets | 308,167 us-gaap_Assets | 267,956 us-gaap_Assets
Gabon |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Revenues |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 126,322 us-gaap_OilAndGasSalesRevenue / us-gaap_StatementGeographicalAxis = country_GA | 167,386 us-gaap_OilAndGasSalesRevenue / us-gaap_StatementGeographicalAxis = country_GA | 192,489 us-gaap_OilAndGasSalesRevenue / us-gaap_StatementGeographicalAxis = country_GA
United States |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Revenues |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 1,369 us-gaap_OilAndGasSalesRevenue / us-gaap_StatementGeographicalAxis = country_US | 1,891 us-gaap_OilAndGasSalesRevenue / us-gaap_StatementGeographicalAxis = country_US | 2,798 us-gaap_OilAndGasSalesRevenue / us-gaap_StatementGeographicalAxis = country_US
Operating Segments | Gabon |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Revenues |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 126,322 us-gaap_OilAndGasSalesRevenue / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementGeographicalAxis = country_GA | 167,386 us-gaap_OilAndGasSalesRevenue / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementGeographicalAxis = country_GA | 192,489 us-gaap_OilAndGasSalesRevenue / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementGeographicalAxis = country_GA
Depreciation, depletion and amortization |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 19,079 us-gaap_DepreciationDepletionAndAmortization / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementGeographicalAxis = country_GA | 15,310 us-gaap_DepreciationDepletionAndAmortization / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementGeographicalAxis = country_GA | 15,954 us-gaap_DepreciationDepletionAndAmortization / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementGeographicalAxis = country_GA
Operating income (loss) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | (42,105)us-gaap_OperatingIncomeLoss / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementGeographicalAxis = country_GA | 98,795 us-gaap_OperatingIncomeLoss / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementGeographicalAxis = country_GA | 147,985 us-gaap_OperatingIncomeLoss / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementGeographicalAxis = country_GA
Interest income |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 42 us-gaap_InvestmentIncomeInterest / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementGeographicalAxis = country_GA | 40 us-gaap_InvestmentIncomeInterest / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementGeographicalAxis = country_GA | 60 us-gaap_InvestmentIncomeInterest / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementGeographicalAxis = country_GA
Income taxes |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 22,486 us-gaap_IncomeTaxExpenseBenefit / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementGeographicalAxis = country_GA | 34,115 us-gaap_IncomeTaxExpenseBenefit / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementGeographicalAxis = country_GA | 81,813 us-gaap_IncomeTaxExpenseBenefit / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementGeographicalAxis = country_GA
Bad debt and other expenses |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 2,400 egy_ProvisionForDoubtfulAccountsAndOtherExpenses / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementGeographicalAxis = country_GA | 1,764 egy_ProvisionForDoubtfulAccountsAndOtherExpenses / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementGeographicalAxis = country_GA |
Impairment of proved properties |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 98,341 us-gaap_AssetImpairmentCharges / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementGeographicalAxis = country_GA |  |
Additions to properties and equipment |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 83,170 us-gaap_PropertyPlantAndEquipmentAdditions / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementGeographicalAxis = country_GA | 53,015 us-gaap_PropertyPlantAndEquipmentAdditions / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementGeographicalAxis = country_GA | 22,731 us-gaap_PropertyPlantAndEquipmentAdditions / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementGeographicalAxis = country_GA
Long lived assets | 76,247 us-gaap_NoncurrentAssets / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementGeographicalAxis = country_GA |  |  |  |  |  |  |  | 109,597 us-gaap_NoncurrentAssets / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementGeographicalAxis = country_GA |  |  |  |  |  |  |  | 76,247 us-gaap_NoncurrentAssets / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementGeographicalAxis = country_GA | 109,597 us-gaap_NoncurrentAssets / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementGeographicalAxis = country_GA | 71,225 us-gaap_NoncurrentAssets / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementGeographicalAxis = country_GA
Total assets | 192,957 us-gaap_Assets / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementGeographicalAxis = country_GA |  |  |  |  |  |  |  | 256,033 us-gaap_Assets / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementGeographicalAxis = country_GA |  |  |  |  |  |  |  | 192,957 us-gaap_Assets / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementGeographicalAxis = country_GA | 256,033 us-gaap_Assets / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementGeographicalAxis = country_GA | 190,652 us-gaap_Assets / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementGeographicalAxis = country_GA
Operating Segments | Angola |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Depreciation, depletion and amortization |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 12 us-gaap_DepreciationDepletionAndAmortization / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementGeographicalAxis = country_AO | 28 us-gaap_DepreciationDepletionAndAmortization / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementGeographicalAxis = country_AO | 28 us-gaap_DepreciationDepletionAndAmortization / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementGeographicalAxis = country_AO
Operating income (loss) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | (3,798)us-gaap_OperatingIncomeLoss / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementGeographicalAxis = country_AO | (3,018)us-gaap_OperatingIncomeLoss / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementGeographicalAxis = country_AO | (3,293)us-gaap_OperatingIncomeLoss / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementGeographicalAxis = country_AO
Interest income |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | (1)us-gaap_InvestmentIncomeInterest / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementGeographicalAxis = country_AO
Bad debt and other expenses |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 1,562 egy_ProvisionForDoubtfulAccountsAndOtherExpenses / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementGeographicalAxis = country_AO | 1,621 egy_ProvisionForDoubtfulAccountsAndOtherExpenses / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementGeographicalAxis = country_AO
Additions to properties and equipment |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 3,117 us-gaap_PropertyPlantAndEquipmentAdditions / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementGeographicalAxis = country_AO | 629 us-gaap_PropertyPlantAndEquipmentAdditions / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementGeographicalAxis = country_AO |
Long lived assets | 14,645 us-gaap_NoncurrentAssets / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementGeographicalAxis = country_AO |  |  |  |  |  |  |  | 11,540 us-gaap_NoncurrentAssets / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementGeographicalAxis = country_AO |  |  |  |  |  |  |  | 14,645 us-gaap_NoncurrentAssets / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementGeographicalAxis = country_AO | 11,540 us-gaap_NoncurrentAssets / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementGeographicalAxis = country_AO | 10,938 us-gaap_NoncurrentAssets / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementGeographicalAxis = country_AO
Total assets | 22,305 us-gaap_Assets / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementGeographicalAxis = country_AO |  |  |  |  |  |  |  | 12,204 us-gaap_Assets / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementGeographicalAxis = country_AO |  |  |  |  |  |  |  | 22,305 us-gaap_Assets / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementGeographicalAxis = country_AO | 12,204 us-gaap_Assets / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementGeographicalAxis = country_AO | 11,405 us-gaap_Assets / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementGeographicalAxis = country_AO
Operating Segments | Equatorial Guinea |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Operating income (loss) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | (1,525)us-gaap_OperatingIncomeLoss / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementGeographicalAxis = country_GQ | (768)us-gaap_OperatingIncomeLoss / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementGeographicalAxis = country_GQ | (754)us-gaap_OperatingIncomeLoss / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementGeographicalAxis = country_GQ
Additions to properties and equipment |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 10,000 us-gaap_PropertyPlantAndEquipmentAdditions / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementGeographicalAxis = country_GQ
Long lived assets | 10,000 us-gaap_NoncurrentAssets / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementGeographicalAxis = country_GQ |  |  |  |  |  |  |  | 10,000 us-gaap_NoncurrentAssets / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementGeographicalAxis = country_GQ |  |  |  |  |  |  |  | 10,000 us-gaap_NoncurrentAssets / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementGeographicalAxis = country_GQ | 10,000 us-gaap_NoncurrentAssets / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementGeographicalAxis = country_GQ | 10,000 us-gaap_NoncurrentAssets / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementGeographicalAxis = country_GQ
Total assets | 10,197 us-gaap_Assets / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementGeographicalAxis = country_GQ |  |  |  |  |  |  |  | 10,059 us-gaap_Assets / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementGeographicalAxis = country_GQ |  |  |  |  |  |  |  | 10,197 us-gaap_Assets / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementGeographicalAxis = country_GQ | 10,059 us-gaap_Assets / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementGeographicalAxis = country_GQ | 10,000 us-gaap_Assets / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementGeographicalAxis = country_GQ
Operating Segments | United States |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Revenues |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 1,369 us-gaap_OilAndGasSalesRevenue / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementGeographicalAxis = country_US | 1,891 us-gaap_OilAndGasSalesRevenue / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementGeographicalAxis = country_US | 2,798 us-gaap_OilAndGasSalesRevenue / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementGeographicalAxis = country_US
Depreciation, depletion and amortization |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 901 us-gaap_DepreciationDepletionAndAmortization / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementGeographicalAxis = country_US | 1,528 us-gaap_DepreciationDepletionAndAmortization / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementGeographicalAxis = country_US | 3,872 us-gaap_DepreciationDepletionAndAmortization / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementGeographicalAxis = country_US
Operating income (loss) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | (119)us-gaap_OperatingIncomeLoss / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementGeographicalAxis = country_US | (11,869)us-gaap_OperatingIncomeLoss / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementGeographicalAxis = country_US | (48,940)us-gaap_OperatingIncomeLoss / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementGeographicalAxis = country_US
Impairment of proved properties |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 7,620 us-gaap_AssetImpairmentCharges / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementGeographicalAxis = country_US
Additions to properties and equipment |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 8 us-gaap_PropertyPlantAndEquipmentAdditions / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementGeographicalAxis = country_US |  | 13,558 us-gaap_PropertyPlantAndEquipmentAdditions / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementGeographicalAxis = country_US
Long lived assets | 6,359 us-gaap_NoncurrentAssets / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementGeographicalAxis = country_US |  |  |  |  |  |  |  | 7,235 us-gaap_NoncurrentAssets / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementGeographicalAxis = country_US |  |  |  |  |  |  |  | 6,359 us-gaap_NoncurrentAssets / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementGeographicalAxis = country_US | 7,235 us-gaap_NoncurrentAssets / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementGeographicalAxis = country_US | 14,279 us-gaap_NoncurrentAssets / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementGeographicalAxis = country_US
Total assets | 6,611 us-gaap_Assets / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementGeographicalAxis = country_US |  |  |  |  |  |  |  | 9,660 us-gaap_Assets / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementGeographicalAxis = country_US |  |  |  |  |  |  |  | 6,611 us-gaap_Assets / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementGeographicalAxis = country_US | 9,660 us-gaap_Assets / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementGeographicalAxis = country_US | 17,314 us-gaap_Assets / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementGeographicalAxis = country_US
Corporate, Non-Segment |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Depreciation, depletion and amortization |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 94 us-gaap_DepreciationDepletionAndAmortization / us-gaap_ConsolidationItemsAxis = us-gaap_CorporateNonSegmentMember | 63 us-gaap_DepreciationDepletionAndAmortization / us-gaap_ConsolidationItemsAxis = us-gaap_CorporateNonSegmentMember | 59 us-gaap_DepreciationDepletionAndAmortization / us-gaap_ConsolidationItemsAxis = us-gaap_CorporateNonSegmentMember
Operating income (loss) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | (6,859)us-gaap_OperatingIncomeLoss / us-gaap_ConsolidationItemsAxis = us-gaap_CorporateNonSegmentMember | (5,915)us-gaap_OperatingIncomeLoss / us-gaap_ConsolidationItemsAxis = us-gaap_CorporateNonSegmentMember | (8,405)us-gaap_OperatingIncomeLoss / us-gaap_ConsolidationItemsAxis = us-gaap_CorporateNonSegmentMember
Interest income |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 33 us-gaap_InvestmentIncomeInterest / us-gaap_ConsolidationItemsAxis = us-gaap_CorporateNonSegmentMember | 33 us-gaap_InvestmentIncomeInterest / us-gaap_ConsolidationItemsAxis = us-gaap_CorporateNonSegmentMember | 86 us-gaap_InvestmentIncomeInterest / us-gaap_ConsolidationItemsAxis = us-gaap_CorporateNonSegmentMember
Additions to properties and equipment |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 816 us-gaap_PropertyPlantAndEquipmentAdditions / us-gaap_ConsolidationItemsAxis = us-gaap_CorporateNonSegmentMember | 47 us-gaap_PropertyPlantAndEquipmentAdditions / us-gaap_ConsolidationItemsAxis = us-gaap_CorporateNonSegmentMember | 77 us-gaap_PropertyPlantAndEquipmentAdditions / us-gaap_ConsolidationItemsAxis = us-gaap_CorporateNonSegmentMember
Long lived assets | 873 us-gaap_NoncurrentAssets / us-gaap_ConsolidationItemsAxis = us-gaap_CorporateNonSegmentMember |  |  |  |  |  |  |  | 152 us-gaap_NoncurrentAssets / us-gaap_ConsolidationItemsAxis = us-gaap_CorporateNonSegmentMember |  |  |  |  |  |  |  | 873 us-gaap_NoncurrentAssets / us-gaap_ConsolidationItemsAxis = us-gaap_CorporateNonSegmentMember | 152 us-gaap_NoncurrentAssets / us-gaap_ConsolidationItemsAxis = us-gaap_CorporateNonSegmentMember | 166 us-gaap_NoncurrentAssets / us-gaap_ConsolidationItemsAxis = us-gaap_CorporateNonSegmentMember
Total assets | $ 16,779 us-gaap_Assets / us-gaap_ConsolidationItemsAxis = us-gaap_CorporateNonSegmentMember |  |  |  |  |  |  |  | $ 20,211 us-gaap_Assets / us-gaap_ConsolidationItemsAxis = us-gaap_CorporateNonSegmentMember |  |  |  |  |  |  |  | $ 16,779 us-gaap_Assets / us-gaap_ConsolidationItemsAxis = us-gaap_CorporateNonSegmentMember | $ 20,211 us-gaap_Assets / us-gaap_ConsolidationItemsAxis = us-gaap_CorporateNonSegmentMember | $ 38,585 us-gaap_Assets / us-gaap_ConsolidationItemsAxis = us-gaap_CorporateNonSegmentMember
[1] | Gabon crude oil sales are a function of the number and size of crude oil liftings in each quarter from the floating production, storage and offloading (“FPSO”) facility.

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