UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
CASH PROVIDED BY OPERATIONS:
Net earnings	$ 1,430	$ 3,097
Adjustments to reconcile net earnings to net cash from operating activities -
Depreciation, depletion and amortization	5,115	6,088
Property sales (gains)	(120)	(512)
Dry hole costs incurred	0	34
Impairment of oil and natural gas properties	29	208
Deferred income taxes	(1,352)	(949)
Net change in fair value contracts	158	39
Equity investment (earnings) losses	191	0
Decrease (increase) in accounts receivable	(1,224)	25,501
Decrease (increase) in inventories	(5,707)	(803)
Decrease (increase) in income tax receivable	1,958	970
Decrease (increase) in prepayments	338	342
Increase (decrease) in accounts payable	(3,614)	(25,385)
Increase (decrease) in accrued liabilities	393	3,509
Other changes, net	47	(8)
Net cash provided by (used in) operating activities	(2,358)	12,131
INVESTING ACTIVITIES:
Property and equipment additions	(4,210)	(3,665)
Proceeds from property sales	920	512
Investments	(2,200)	0
Insurance and state collateral (deposits) refunds	(2)	(103)
Net cash (used in) investing activities	(5,492)	(3,256)
FINANCING ACTIVITIES
Dividend payments	(928)	(927)
Net cash (used in) financing activities	(928)	(927)
Increase (decrease) in cash and cash equivalents	(8,778)	7,948
Cash and cash equivalents at beginning of period	91,877	80,184
Cash and cash equivalents at end of period	$ 83,099	$ 88,132