Supplemental Quarterly Financial Information

12 Months Ended

Dec. 31, 2011

Supplemental Quarterly Financial Information [Abstract]

Supplemental Quarterly Financial Information

Note 17 — Supplemental Quarterly Financial Information (Unaudited)

(In Thousands, Except Per Share Amounts)

	First Quarter			Second Quarter			Third Quarter			Fourth Quarter
2011
Revenues	$	166,500		$	172,883		$	170,135		$	177,690
Costs, expenses and other (1)		144,894			177,906			124,441			87,275
Income (loss) from operations		21,606			(5,023	)		45,694			90,415
Net loss attributable to common shareholders		(119,547	)		(56,852	)		(5,591	)		(28,492	)
Net loss per share attributable to common shareholders (2):
Basic		(2.34	)		(1.11	)		(0.11	)		(0.56	)
Diluted		(2.34	)		(1.11	)		(0.11	)		(0.56	)
2010
Revenues	$	93,029		$	101,099		$	102,121		$	141,748
Costs, expenses and other (1)		76,715			116,513			91,773			192,172
Income (loss) from operations		16,314			(15,414	)		10,348			(50,424	)
Net loss attributable to common shareholders (3)		(886	)		(82,919	)		(58,350	)		(206,642	)
Net loss per share attributable to common shareholders (2):
Basic		(0.02	)		(1.63	)		(1.15	)		(4.06	)
Diluted		(0.02	)		(1.63	)		(1.15	)		(4.06	)

(1) Included here is impairment of oil and gas properties the most significant amounts of which are in the second quarter of 2011 and fourth quarter of 2010 when impairment was $45.7 million and $48.2 million, respectively.

(2) The sum of the per share amounts per quarter does not equal the total for the year due to changes in the average number of common shares outstanding.

(3) In the second quarter of 2010, we refinanced our long-term debt and recognized a loss on debt extinguishment of $78.2 million. Also in the second quarter of 2010, we completed construction of the ATP Titan and therefore ceased capitalizing related interest costs.