Consolidated Statements of Cash Flows (Unaudited) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Cash flows from operating activities:
Net income	$ 11,323	$ 3,887
Adjustments to reconcile net income to net cash provided by operating activities:
Deferred tax expense	0	349
Depreciation, depletion and amortization	20,428	12,871
Accretion of asset retirement obligation	791	332
Share-based compensation expense	1,389	556
Amortization costs and other	557	200
Non-cash derivative expense	0	437
Payments to settle asset retirement obligations	(718)	(72)
Changes in working capital accounts:
Revenue receivable	2,464	2,592
Prepaid drilling and pipe costs	(43)	778
Joint interest billing receivable	2,684	6,331
Accounts payable and accrued liabilities	246	(27,344)
Advances from co-owners	6,033	10,742
Other	135	(2,539)
Net cash provided by operating activities	45,289	9,120
Cash flows used in investing activities:
Investment in oil and gas properties	(41,792)	(31,275)
Investment in other property and equipment	(205)	(49)
Sale of oil and gas properties	0	19,652
Net cash used in investing activities	(41,997)	(11,672)
Cash flows used in financing activities:
Net proceeds (payments) for share based compensation	911	(84)
Deferred financing costs	(81)	(21)
Payment of preferred stock dividend	(1,284)	(1,284)
Proceeds from bank borrowings	5,000	25,000
Repayment of bank borrowings	(5,000)	(15,000)
Net cash provided by (used in) financing activities	(454)	8,611
Net increase in cash and cash equivalents	2,838	6,059
Cash and cash equivalents, beginning of period	9,153	14,904
Cash and cash equivalents, end of period	11,991	20,963
Cash paid during the period for:
Interest	18,131	7,845
Income taxes	$ 0	$ 41