Accumulated depreciation, depletion, amortization and impairments of oil and gas properties carried under the full cost method. No authoritative reference available. No authoritative reference available. No authoritative reference available. Depletable oil and gas properties under the full cost method. Includes oil and gas properties with proved reserves, dry hole costs, abandoned costs and Asset Retirement.These are capitalized costs of properties that have been evaluated. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. Revenue related to marketing of natural gas and related products, net of related costs. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. Oil and Gas properties with unproved reserves under the full cost method and that are not being amortized, including property under development. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. Under the two-class earnings allocation method, dividends declared during the period attributable to fully diluted common stockholders. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. Total earnings (loss) for the period allocated to fully diluted common stockholders. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. Under the two-class earnings allocation method, undistributed earnings (loss) during the period attributable to basic common stockholders. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. Describes the nature of an entity's business, the major products or services it sells or provides and its principal markets, including the locations of those markets. No authoritative reference available. Value of stock related to restricted stock awards forfeited and retired during the period. No authoritative reference available. No authoritative reference available. No authoritative reference available. The total of Natural Gas Midstream costs. Natural Gas Midstream costs refers to those gas industry activities that fall between exploration and production (upstream) and refining and marketing (downstream). It may be applied to the gathering, processing, transmission and storage of natural gas; including the treating of natural gas to remove impurities. No authoritative reference available. No authoritative reference available. No authoritative reference available. Costs related to marketing of natural gas and related products. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. The net cash inflow (outflow) in aggregate bank debt due to repayments and proceeds from additional borrowings. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. The disclosure of sales and acquisitions of various interests in oil and gas properites. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. Under the two-class earnings allocation method, undistributed earnings (loss) during the period attributable to fully diluted common stockholders. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. Amount due from customers or clients, within one year of the balance sheet date (or the normal operating cycle, whichever is longer), for trade receivables that have been delivered or sold in the normal course of business, reduced to the estimated net realizable fair value by an allowance established by the entity of the amount it deems uncertain of collection. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. Revenue payable for the working interest and royalty interests not distributed. Used to reflect the current portion of the liabilites. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. Oil and Gas properties, gross, carried under the full cost method. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. Carrying value as of the balance sheet date of obligations incurred and payable to third parties for gas gathering, processing and marketing. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. Amount due from customers or clients, within one year of the balance sheet date (or the normal operating cycle, whichever is longer), for oil and gas sales receivables that have been delivered or sold in the normal course of business, reduced to the estimated net realizable fair value by an allowance established by the entity of the amount it deems uncertain of collection. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. All taxes other than income taxes, mainly production severance taxes and ad valorem taxes. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. Total earnings (loss) for the period allocated to basic common stockholders. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. Aggregate net gain (loss)on all derivative instruments for which hedge accounting was not applied and that are part of operating costs and expenses. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. Value of stock issued during the period related to the accelerated vesting of stock options, restricted stock, and restricted stock units. No authoritative reference available. The total of Natural Gas Midstream Revenue and Other Revenue. Natural Gas Midstream Revenue refers to those gas industry activities that fall between exploration and production (upstream) and refining and marketing (downstream). It may be applied to the gathering, processing, transmission and storage of natural gas; including the treating of natural gas to remove impurities, along with the sale of by-products such as residue gas, natural gas liquids and condensate. Other Revenue referes to those operating revenues not specified elsewhere, including non hydrocarbons. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. Exercise of stock options, tax benefit recorded in paid in capital. No authoritative reference available. Accretion expense of asset retirement obligations related to oil and gas producing activities, including gains or losses of plugging and abandonments. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. Appreciation or loss in value of the total of unsold short-term investments during the period being reported on and other, net of tax. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. Revenue from the sale of oil, condensate and plant products. No authoritative reference available. No authoritative reference available. No authoritative reference available. Amount due from customers or clients, within one year of the balance sheet date (or the normal operating cycle, whichever is longer), for gas gathering, processing and marketing receivables that have been delivered or sold in the normal course of business, reduced to the estimated net realizable fair value by an allowance established by the entity of the amount it deems uncertain of collection. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. Under the two-class earnings allocation method, dividends declared during the period attributable to basic common stockholders. No authoritative reference available. No authoritative reference available. No authoritative reference available. Carrying amount (lower of cost or market) as of the balance sheet date of oil and gas well equipment and supplies less valuation and other allowances. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. Number of shares of stock related to restricted stock awards forfeited and retired during the period. No authoritative reference available. No authoritative reference available. No authoritative reference available. All taxes other than income taxes, mainly production severance taxes and ad valorem taxes as of the balance sheet date. No authoritative reference available. Carrying value as of the balance sheet date of obligations incurred and payable, pertaining to costs for the exploration and development of oil and gas properties. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. This item represents disclosure of the amount of distributions received that constitute a return of investment from unconsolidated subsidiaries, certain corporate joint ventures, and certain noncontrolled corporations; these investments are accounted for under the equity method of accounting. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. Represents the amortization of unearned compensation recognized during the period arising from share-based compensation arrangements (for example, shares of stock or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees. No authoritative reference available. Value of stock issued during the period as a result of the exercise of stock options, net of tax benefit recorded in paid in capital. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. Oil and Gas properties net of accumulated depreciation, depletion and amortization, Impairment and abandonment, carried under the full cost method. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. No authoritative reference available. The number of shares issued during the period related to the vesting of restricted stock units. No authoritative reference available.