UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011
CASH PROVIDED BY OPERATIONS:
Net earnings	$ 11,961	$ 9,172
Adjustments to reconcile net earnings to net cash from operating activities -
Depreciation Depletion and Amortization	9,189	7,320
Property sale (gains) losses	(2,982)	(3,368)
Dry hole costs incurred	41	511
Impairment of oil and gas properties	629	562
Provision for doubtful accounts	(49)	287
Deferred income taxes	425	4,761
Net change in fair value contracts	993	(508)
Decrease (increase) in accounts receivable	44,124	(22,866)
Decrease (increase) in inventories	1,642	(5,802)
Decrease (increase) in income tax receivable	417	1,909
Decrease (increase) in prepayments	1,568	(376)
Increase (decrease) in accounts payable	(52,968)	36,681
Increase (decrease) in accrued liabilities	6,362	2,379
Other changes, net	196	(91)
Net cash provided by operating activities	21,548	30,571
INVESTING ACTIVITIES:
Property and Equipment Additions	(31,610)	(30,262)
Insurance and state collateral (deposits) refunds	257	0
Proceeds from property sales	1,406	7,296
Proceeds from discontinued operations	3,546	0
Investment in marketable securities	0	(11,098)
Redemption of marketable securities	0	2,400
Net cash (used in) investing activities	(26,401)	(31,664)
Increase (decrease) in cash and cash equivalents	(4,853)	(1,093)
Cash and cash equivalents at beginning of period	37,066	29,032
Cash and cash equivalents at end of period	$ 32,213	$ 27,939