Additional Balance Sheet Details

12 Months Ended

Dec. 31, 2014

Disclosure Text Block [Abstract]

Supplemental Balance Sheet Disclosures

Note 12. Additional Balance Sheet Details

Trade and Other Receivables, Net

	December 31,
In thousands	2014		2013
Commodity derivatives settlement receivables	$	59,755	$	—
Trade accounts receivable, net	45,407		53,737
Federal income tax receivable, net	37,652		—
Other receivables	14,141		24,558
Total	$	156,955	$	78,295

Allowance for Doubtful Accounts

We record an allowance for doubtful accounts for receivables that we determine to be uncollectible based on the specific identification basis. The allowance for doubtful accounts, which is netted against "Trade and other receivables" on the Consolidated Balance Sheets, was $0.4 million and $0.3 million at December 31, 2014 and 2013, respectively.

Accounts Payable and Accrued Liabilities

	December 31,
In thousands	2014		2013
Accrued exploration and development costs	$	90,939	$	100,564
Accounts payable	64,604		63,263
Accrued compensation	62,513		55,043
Accrued lease operating expenses	56,798		59,762
Accrued interest	48,255		68,871
Taxes payable	39,816		28,019
Other	31,833		35,021
Total	$	394,758	$	410,543