UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011
CASH PROVIDED BY OPERATIONS:
Net earnings	$ 20,224	$ 18,198
Adjustments to reconcile net earnings to net cash from operating activities -
Depreciation, depletion and amortization	14,639	11,370
Property sale (gains) losses	(4,364)	(4,035)
Dry hole costs incurred	43	1,165
Impairment of oil and gas properties	878	1,208
Provision for doubtful accounts	(49)	750
Deferred income taxes	3,728	8,703
Net change in fair value contracts	2,555	2,728
Decrease (increase) in accounts receivable	34,740	773
Decrease (increase) in inventories	(7,516)	(3,824)
Decrease (increase) in income tax receivable	417	2,554
Decrease (increase) in prepayments	1,480	(1,987)
Increase (decrease) in accounts payable	(22,797)	15,296
Increase (decrease) in accrued liabilities	6,870	4,680
Other changes, net	394	(137)
Net cash provided by operating activities	51,242	57,442
INVESTING ACTIVITIES:
Property and equipment additions	(43,129)	(41,206)
Insurance and state collateral (deposits) refunds	268	(308)
Proceeds from property sales	3,061	8,032
Proceeds from discontinued operations	3,546	0
Investment in marketable securities	0	7,666
Redemption of marketable securities	0	(11,098)
Net cash (used in) investing activities	(36,254)	(36,914)
Increase (decrease) in cash and cash equivalents	14,988	20,528
Cash and cash equivalents at beginning of period	37,066	29,032
Cash and cash equivalents at end of period	$ 52,054	$ 49,560