Segment Information

6 Months Ended

Jun. 30, 2011

Segment Information

Segment Information

Note 14 — Segment Information

The Company's operations are focused in the Gulf of Mexico and the North Sea. Management reviews and evaluates separately the operations of its segments. The operations of the segments include liquid hydrocarbon and natural gas production and sales. Segment activity is as follows (in thousands):

For the Three Months Ended —	Gulf of Mexico		North Sea			Total
June 30, 2011:
Revenues	$	168,304	$	4,579		$	172,883
Depreciation, depletion and amortization		70,988		3,330			74,318
Impairment		45,704		—			45,704
Loss from operations		3,407		1,616			5,023
Interest income		59		—			59
Interest expense, net		97,043		—			97,043
Derivative income		34,801		1,117			35,918
Gain on debt extinguishment		1,091		—			1,091
Income tax benefit		14,494		—			14,494
Additions to oil and gas properties		90,134		43,719			133,853
June 30, 2010:
Revenues	$	96,002	$	5,097		$	101,099
Depreciation, depletion and amortization		54,451		5,664			60,115
Impairment		3,853		—			3,853
Income (loss) from operations		12,517		2,897			15,414
Interest income		39		115			154
Interest expense, net		64,645		—			64,645
Derivative income		30,288		(6,359	)		23,929
Loss on debt extinguishment		78,171		—			78,171
Income tax expense		57,799		—			57,799
Additions to oil and gas properties		168,078		39,934			208,012
For the Six Months Ended —	Gulf of Mexico		North Sea			Total
June 30, 2011:
Revenues	$	329,251	$	10,132		$	339,383
Depreciation, depletion and amortization		146,486		7,152			153,638
Impairment		45,704		—			45,704
Income (loss) from operations		18,870		(2,287	)		16,583
Interest income		116		—			116
Interest expense, net		172,528		—			172,528
Derivative expense		12,708		1,636			14,344
Gain on debt extinguishment		1,091		—			1,091
Income tax benefit		5,352		—			5,352
Additions to oil and gas properties		103,224		121,462			224,686
Total assets		2,830,231		469,461			3,299,692
June 30, 2010:
Revenues	$	183,370	$	10,758		$	194,128
Depreciation, depletion and amortization		84,862		11,254			96,116
Impairment		12,090		—			12,090
Income (loss) from operations		5,742		(4,842	)		900
Interest income		76		222			298
Interest expense, net		76,864		—			76,864
Derivative income		32,902		(5,438	)		27,464
Loss on debt extinguishment		78,171		—			78,171
Income tax expense		56,394		—			56,394
Additions to oil and gas properties		448,495		64,805			513,300
Total assets		2,924,795		339,637			3,264,432