(4) Additional Balance Sheet Information:

Certain balance sheet amounts are comprised of the following:


	June 30, 2011		December 31, 2010
Accounts Receivable:
Joint interest billing	$	2,575,000	$	2,538,000
Trade receivables		1,658,000		1,688,000
Oil and gas sales		9,020,000		8,139,000
Other		134,000		724,000

		13,387,000		13,089,000
Less: Allowance for doubtful accounts		404,000		341,000


Total	$	12,983,000	$	12,748,000


Accounts Payable:
Trade	$	4,740,000	$	3,421,000
Royalty and other owners		12,677,000		10,395,000
Prepaid drilling deposits		8,148,000		12,871,000
Other		6,886,000		7,689,000


Total	$	32,451,000	$	34,376,000


Accrued Liabilities:
Compensation and related expenses	$	3,153,000	$	2,010,000
Property costs		780,000		3,282,000
Income tax		129,000		930,000
Other		1,448,000		1,454,000


Total	$	5,510,000	$	7,676,000