Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
Current assets:
Cash and cash equivalents	$ 14,904	$ 22,263
Revenue receivable	17,742	15,860
Joint interest billing receivable	42,595	47,445
Other receivables	9,208	0
Derivative asset	830	6,418
Prepaid drilling costs	1,698	2,900
Drilling pipe inventory	707	4,070
Other current assets	1,900	2,965
Total current assets	89,584	101,921
Oil and gas properties:
Oil and gas properties, full cost method	1,734,477	1,600,546
Unevaluated oil and gas properties	71,713	70,408
Accumulated depreciation, depletion and amortization	(1,472,244)	(1,265,603)
Oil and gas properties, net	333,946	405,351
Other property and equipment	12,370	10,627
Accumulated depreciation of other property and equipment	(7,607)	(6,414)
Total property and equipment	338,709	409,564
Other assets, net of accumulated amortization of $4,240 and $3,446, respectively	5,110	4,681
Total assets	433,403	516,166
Current liabilities:
Accounts payable to vendors	58,960	50,750
Advances from co-owners	20,459	33,867
Oil and gas revenue payable	26,175	13,764
Accrued interest and preferred stock dividend	6,190	6,167
Asset retirement obligation	2,351	3,110
Derivative liability	233	0
Other accrued liabilities	6,535	8,250
Total current liabilities	120,903	115,908
Bank debt	50,000	0
10% Senior Notes	150,000	150,000
Asset retirement obligation	24,909	27,317
Deferred income taxes	0	551
Commitments and contingencies
Stockholders’ equity:
Preferred stock, $.001 par value; authorized 5,000 shares; issued and outstanding 1,495 shares	1	1
Common stock, $.001 par value; authorized 150,000 shares; issued and outstanding 62,768 and 62,148 shares, respectively	63	62
Paid-in capital	276,534	270,606
Accumulated other comprehensive income	521	4,031
Accumulated deficit	(189,528)	(52,310)
Total stockholders’ equity	87,591	222,390
Total liabilities and stockholders’ equity	$ 433,403	$ 516,166