Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Jun. 30, 2013	Dec. 31, 2012
Current assets:
Cash and cash equivalents	$ 542	$ 328
Accounts receivable:
Revenue	2,712	2,665
Joint interest billings and other	1,958	344
Firm transportation contract obligations (note 12)	462	836
Due from related parties (note 13)		446
Prepaid expense, deposits and other current assets	163	114
Derivative assets	85
Total current assets	5,922	4,733
Oil and gas properties, full cost method of accounting:
Proved, net	34,303	32,186
Unevaluated	1,743	1,126
Other property and equipment, net	289	242
Total property and equipment	36,335	33,554
Investments in affiliates (note 5)	1,013	1,217
Other long-term assets	750	874
Total assets	44,020	40,378
Current liabilities:
Accounts payable and accrued liabilities	6,989	5,404
Firm transportation contract obligations (note 12)	1,217	2,200
Derivative liabilities		87
Total current liabilities	8,206	7,691
Non-current liabilities:
Asset retirement obligation (note 2)	2,540	2,321
Firm transportation contract obligations (note 12)	1,617	1,896
Notes payable (note 6)	12,588	11,088
Total non-current liabilities	16,745	15,305
Commitments (note 12)
Stockholders' equity:
Preferred stock, $0.01 par value; authorized 1,000,000 shares, no shares issued and outstanding at June 30, 2013 and December 31, 2012
Common stock, $0.01 par value; authorized 200,000,000 shares, 114,470,223 and 115,795,405 shares issued and outstanding at June 30, 2013 and December 31, 2012, respectively	1,145	1,158
Additional paid-in capital	54,432	54,195
Non-controlling interests	3,075	3,088
Accumulated deficit	(39,583)	(41,059)
Total stockholders' equity	19,069	17,382
Total liabilities and stockholders' equity	$ 44,020	$ 40,378