Condensed Consolidated Balance Sheets (USD $) In Thousands	Sep. 30, 2011	Dec. 31, 2010
Current assets
Cash and equivalents	$ 58	$ 730
Accounts receivable - trade, net	10,727	11,845
Other receivables	777	1,153
Inventory	4,499	6,161
Other current assets	7,526	2,799
Derivative financial instruments	35,366	31,588
Total	58,953	54,276
Oil and gas properties, full cost accounting, net	121,973	116,488
Pipeline assets, net	59,511	61,148
Other property and equipment, net	15,109	15,964
Investment in affiliates	10,673	0
Other noncurrent assets, net	4,486	9,303
Derivative financial instruments	29,229	39,633
Total assets	299,934	296,812
Current liabilities
Accounts payable	4,319	7,030
Revenue payable	5,359	5,898
Accrued expenses and other current liabilities	13,150	7,190
Litigation reserve	3,070	1,020
Current portion of long-term debt	6,000	10,500
Derivative financial instruments	4,737	3,792
Total	36,635	35,430
Derivative financial instruments	5,581	6,681
Long-term debt	190,000	209,721
Asset retirement obligations	7,726	7,150
Other noncurrent liabilities	4,876	0
Total liabilities	244,818	258,982
Commitments and contingencies
Stockholders' equity
Common stock, $0.01 par value; authorized shares - 40,000,000; 8,238,982 and 9,503,396 issued and outstanding at December 31, 2010 and September 30, 2011, respectively	95	82
Additional paid-in capital	379,664	377,538
Accumulated deficit	(379,737)	(390,414)
Total equity (deficit)	24	(12,792)
Total liabilities and equity	299,934	296,812
Redeemable Preferred Stock | Series A Preferred Stock
Current liabilities
Series A cumulative redeemable preferred stock, $0.01 par value; issued and outstanding - 6,000 shares	55,092	50,622
Series B Preferred Stock
Stockholders' equity
Preferred stock, $0.01 par value; authorized shares - 5,000,000; 195,842 and 208,406 Series B Voting Preferred Stock issued and outstanding at December 31, 2010 and September 30, 2011, respectively	$ 2	$ 2