Condensed Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Mar. 31, 2015		Dec. 31, 2014
Current Assets:
Cash and cash equivalents	$ 311		$ 406
Accounts receivable	49,640		48,451
Deferred tax asset	2,979		6,243
Other current assets	8,006		9,569
Total Current Assets	60,936		64,669
Property and Equipment:
Property and Equipment	5,958,840		5,934,155
Less - Accumulated depreciation, depletion, and amortization	(4,402,460)		(3,839,118)
Property and Equipment, Net	1,556,380		2,095,037
Other Long-Term Assets	13,039		13,641
Total Assets	1,630,355		2,173,347
Current Liabilities:
Accounts payable and accrued liabilities	73,549		68,244
Accrued capital costs	13,266		41,461
Accrued interest	13,069		21,389
Undistributed oil and gas revenues	10,402		17,825
Total Current Liabilities	110,286		148,919
Long-Term Debt	1,124,201	[1]	1,074,534	[1]
Deferred Tax Liabilities	3,621		86,376
Asset Retirement Obligation	63,632		62,122
Other Long-Term Liabilities	9,181		7,018
Commitments and Contingencies	0		0
Stockholders' Equity:
Preferred stock, $0.01 par value	0		0
Common stock, $0.01 par value	446		444
Additional paid-in capital	771,624		771,972
Treasury stock held, at cost	(2,491)		(9,855)
Retained earnings	(450,145)		31,817
Total Stockholders' Equity	319,434	[2]	794,378
Total Liabilities and Stockholders' Equity	$ 1,630,355		$ 2,173,347

[1] Amounts are shown net of any debt discount or premium

[2] Unaudited