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Commitments and Contingencies - Additional Information (Detail) (USD $)
In Millions, unless otherwise specified |
6 Months Ended |
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Jun. 30, 2014
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Offshore Gabon
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| Commitments And Contingencies Textual Abstract | |
| Undeveloped leasehold capitalized | $ 0.8 |
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Angola
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| Commitments And Contingencies Textual Abstract | |
| Number of exploration wells | 2 |
| Area under acquire property exploration rights agreement term | 1,400,000 |
| Number of exploration wells drilling required to pay remaining obligation | 2 |
| Joint operation agreement related to third party in working interest percentage | 40.00% |
| Additional joint operation agreement related to third party in working interest percentage | 10.00% |
| Production license agreement term extended by government | 3 years |
| Well penalty, minimum | 5.0 |
| Recorded restricted cash | 10.0 |
| Asset retirement obligation | $ 11.7 |
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- Definition
Joint operation agreement related to third party in working interest percentage. No definition available.
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- Definition
Additional joint operation agreement related to third party in working interest percentage. No definition available.
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- Definition
Area under acquire property exploration rights agreement term. No definition available.
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- Details
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- Definition
Number of exploration wells drilling required to pay remaining obligation. No definition available.
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- Definition
Number of exploration wells. No definition available.
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- Definition
Production license agreement term extended by government. No definition available.
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- Definition
The carrying amount of a liability for an asset retirement obligation. An asset retirement obligation is a legal obligation associated with the disposal or retirement of a tangible long-lived asset that results from the acquisition, construction or development, or the normal operations of a long-lived asset, except for certain obligations of lessees. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
The capitalized costs incurred during the period (excluded from amortization) in identifying areas that may warrant examination and in examining specific areas that are considered to have prospects of containing oil and gas reserves, including costs of drilling exploratory wells and exploratory-type stratigraphic test wells. Exploration costs may be incurred both before acquiring the related property (sometimes referred to in part as prospecting costs) and after acquiring the property. Principal types of exploration costs, which include depreciation and applicable operating costs of support equipment and facilities and other costs of exploration activities, are: costs of topographical, geographical and geophysical studies, rights of access to properties to conduct those studies, and salaries and other expenses of geologists, geophysical crews, and others conducting those studies. Collectively, these are sometimes referred to as geological and geophysical or "G&G" costs. Exploration costs also include costs of carrying and retaining undeveloped properties, such as delay rentals, ad valorem taxes on properties, legal costs for title defense, the maintenance of land and lease records, dry hole contributions and bottom hole contributions, costs of drilling and equipping exploratory wells and costs of drilling exploratory-type stratigraphic test wells. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
The estimated minimum amount of possible loss from the contingency. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
The carrying amounts of cash and cash equivalent items which are restricted as to withdrawal or usage. Restrictions may include legally restricted deposits held as compensating balances against borrowing arrangements, contracts entered into with others, or entity statements of intention with regard to particular deposits; however, time deposits and short-term certificates of deposit are not generally included in legally restricted deposits. Excludes compensating balance arrangements that are not agreements which legally restrict the use of cash amounts shown on the balance sheet. This element is for unclassified presentations; for classified presentations there is a separate and distinct element. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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