Oil and Gas Properties

3 Months Ended

Mar. 31, 2012

Oil and Gas Properties [Abstract]

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

2. OIL AND GAS PROPERTIES:
		March 31,		December 31,
		2012		2011
Developed Properties:
Acquisition, equipment, exploration, drilling and environmental costs	$	6,242,755	$	5,974,604
Less: Accumulated depletion, depreciation and amortization		(2,432,990)		(2,322,982)
		3,809,765		3,651,622
Unproven Properties:
Acquisition and exploration costs not being amortized(1)		541,868		537,526
Net capitalized costs - oil and gas properties	$	4,351,633	$	4,189,148

(1)For the three months ended March 31, 2012 and 2011,total interest on outstanding debt was $25.4 million and $22.6 million, respectively, of which, $7.1 million and $8.0 million, respectively, was capitalized on the cost of unevaluated oil and natural gas properties and on work in process relating to gathering systems that are not currently in service.