Oil and Gas Properties

6 Months Ended

Jun. 30, 2011

Oil and Gas Properties [Abstract]

Oil and Gas Exploration and Production Industries Disclosures [Text Block]

2. OIL AND GAS PROPERTIES:
		June 30,		December 31,
		2011		2010
Developed Properties:
Acquisition, equipment, exploration, drilling and environmental costs	$	5,241,709	$	4,575,222
Less: Accumulated depletion, depreciation and amortization		(2,134,743)		(1,985,799)
		3,106,966		2,589,423
Unproven Properties:
Acquisition and exploration costs not being amortized(1)		524,307		486,247
Net capitalized costs - oil and gas properties	$	3,631,273	$	3,075,670

(1)For the six months ended June 30, 2011 and 2010,total interest on outstanding debt was $45.7 million and $30.5 million, respectively, of which, $15.5 million and $7.4 million, respectively, was capitalized on the cost of unevaluated oil and natural gas properties and work in process relating to gathering systems that are not currently in service.