Oil and Gas Properties and Equipment

6 Months Ended

Jun. 30, 2014

Oil And Gas Properties And Equipment [Abstract]

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

2. OIL AND GAS PROPERTIES AND EQUIPMENT:
		June 30,		December 31,
		2014		2013
Proven Properties:
Acquisition, equipment, exploration, drilling and environmental costs	$	8,108,781	$	7,817,374
Less: Accumulated depletion, depreciation and amortization(1)		(5,930,488)		(5,808,836)
		2,178,293		2,008,538
Unproven Properties:
Acquisition and exploration costs not being amortized(1)		399,027		413,073
Net capitalized costs - oil and gas properties	$	2,577,320	$	2,421,611
Property, Plant and Equipment:
Gathering Systems(1)	$	297,837	$	294,356
Less: Accumulated depreciation		(107,258)		(105,246)
		190,579		189,110
Other Property and Equipment		16,339		15,198
Less: Accumulated depreciation		(10,334)		(9,758)
		6,005		5,440
Land		23,107		22,359
Net capitalized costs - property, plant and equipment	$	219,691	$	216,909

⁽¹⁾For the six months ended June 30,2014 and 2013, total interest on outstanding debt was $65.3 million and $51.4 million, respectively, of which, $10.9 million and $0.4 million, respectively, was capitalized on the cost of unevaluated oil and natural gas properties and on work in process relating to gathering systems.