Stock Compensation	6 Months Ended
Stock Compensation	Jun. 30, 2013
Share-based Compensation [Abstract]
Stock Compensation	STOCK COMPENSATION Stock Incentive Plan Stock Options: The Stock Incentive Plan provides for the grant of incentive stock options, non-qualified stock options, restricted stock, performance shares or a combination thereof to officers and key employees. Options granted under the Stock Incentive Plan provide for the purchase of Company common stock at not less than the fair market value on the date the option is granted. The sale or transfer of the shares is limited during certain periods. All outstanding options vest within three years from date of grant and expire 10 years from the grant date. The Company granted 134,076 non-qualified option shares during the first quarter of 2013 with a grant-date fair value of $16.66. Restricted Stock: Additionally, the Stock Incentive Plan provided for the grant of restricted stock. In January 2013, 46,121 shares of restricted stock were awarded with a grant date fair value of $48.36. These awards were valued based on the quoted market price of the Company's common stock at the date of grant and have a three year vesting period. Performance Share Awards: The Stock Incentive Plan also provided for the grant of performance share awards, with each unit equal to the market value of one share of common stock, to eligible employees based on predetermined Company performance criteria at the end of an award period. The Stock Incentive Plan provided that payment of earned performance share awards be made in the form of Company common stock. The Company estimated fair value of performance share awards based on the quoted market price of the Company's common stock and adjusted each period for the expected payout ratio. The Company granted 84,311 performance share awards during the first quarter of 2013 with a two year vesting period and a grant-date fair value of $59.19. The Company also granted 80,395 performance share awards during the first quarter of 2013 with a three year award period and a grant-date fair value of $60.81. 2004 Stock Appreciation Rights Plan The Energen 2004 Stock Appreciation Rights Plan provides for the payment of cash incentives measured by the long-term appreciation of Company stock. These awards are liability awards which settle in cash and are re-measured each reporting period until settlement and have a three year vesting period. The Company granted 88,000 awards during the first quarter of 2013. These awards had a fair value of $20.59 as of June 30, 2013. Petrotech Incentive Plan The Energen Resources’ Petrotech Incentive Plan provides for the grant of stock equivalent units. These awards are liability awards which settle in cash and are re-measured each reporting period until settlement. During the three months ended March 31, 2013, Energen Resources awarded 33,796 Petrotech units, none of which included a market condition, with a fair value of $50.84 as of June 30, 2013. Also awarded were 52,768 Petrotech units which included a market condition and had a fair value of $71.94 as of June 30, 2013. These awards have a three-year vesting period. Stock Repurchase Program During the three months and six months ended June 30, 2013, the Company had noncash purchases of approximately $28,000 and $98,000, respectively, of Company common stock in conjunction with tax withholdings on its non-qualified deferred compensation plan and other stock compensation. The Company utilized internally generated cash flows in payment of the related tax withholdings.

The entire disclosure for compensation-related costs for equity-based compensation, which may include disclosure of policies, compensation plan details, allocation of equity compensation, incentive distributions, equity-based arrangements to obtain goods and services, deferred compensation arrangements, employee stock ownership plan details and employee stock purchase plan details.

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