Costs Incurred for Property Acquisition, Exploration and Development (Detail) - USD ($) $ in Thousands |
6 Months Ended | 12 Months Ended | ||||||
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Jun. 30, 2018 |
Jun. 30, 2017 |
Dec. 31, 2017 |
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Acquisitions: | ||||||||
Acreage purchases | [1] | $ 28,300 | $ 62,075 | |||||
Oil and gas properties | [1] | 1,683 | 18,269 | |||||
Development | [1] | 484,186 | 1,177,526 | |||||
Exploration: | ||||||||
Exploration drilling costs incurred | [1] | 2,235 | 2,030 | |||||
Gas gathering facilities: | ||||||||
Development | [1] | 4,599 | 15,097 | |||||
Subtotal | [1] | 536,221 | 1,328,659 | |||||
Asset retirement obligations | 19,561 | [1] | $ 3,855 | 20,245 | [1] | |||
Total costs incurred | [1] | 555,782 | 1,348,904 | |||||
Expense | ||||||||
Exploration: | ||||||||
Exploration costs incurred | [1] | 14,096 | 50,920 | |||||
Stock-based compensation expense | [1] | $ 1,122 | $ 2,742 | |||||
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- Definition Amount of costs incurred related to oil and gas property acquisition, exploration and development activities, including capitalized costs and costs charged to expense subtotal, prior to impact of asset retirement obligation and discontinued operations. No definition available.
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- Definition Cost incurred transportation and field equipment costs. No definition available.
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- Definition Gas gathering facilities. No definition available.
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- Definition Increase (decrease) in asset retirement obligations costs incurred. No definition available.
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- Definition Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Cost incurred, including capitalized costs and costs charged to expense, in acquisition of oil and gas properties. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- References No definition available.
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- Definition Costs incurred, including capitalized costs and costs charged to expense, associated with the acquisition of oil and gas properties that have proved reserves. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Development costs incurred, including capitalized costs and costs charged to expense, in oil and gas activities. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Amount of costs incurred related to oil and gas property acquisition, exploration and development activities, including capitalized costs and costs charged to expense. No definition available.
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- References No definition available.
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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 Exploration costs from oil and gas producing activities. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Details
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