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Additional Balance Sheet Information

3 Months Ended

Mar. 31, 2012

Additional Balance Sheet Information [Abstract]

Additional Balance Sheet Information

(4) Additional Balance Sheet Information:

Certain balance sheet amounts are comprised of the following:

(Thousands of dollars)		March 31, 2012				December 31, 2011
Accounts Receivable:
Joint interest billing		$	2,161			$	2,347
Trade receivables			2,002				1,558
Oil and gas sales			9,848				9,876
Other			655				3,146
			14,666				16,927
Less: Allowance for doubtful accounts			371				421
Total		$	14,295			$	16,506
Accounts Payable:
Trade		$	5,204			$	5,853
Royalty and other owners			10,576				13,645
Prepaid drilling deposits			849				779
Other			7,773				9,261
Total		$	24,402			$	29,538
Accrued Liabilities:
Compensation and related expenses		$	2,880			$	2,137
Property costs			2,758				5,117
Income tax			—				362
Other			1,380				1,347
Total		$	7,018			$	8,963

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