Consolidated Statements of Operations (Unaudited) (USD $) In Thousands, except Per Share data	3 Months Ended				6 Months Ended
	Jun. 30, 2011		Jun. 30, 2010		Jun. 30, 2011		Jun. 30, 2010
Revenue:
Oil and gas sales	$ 16,882		$ 14,822		$ 34,597		$ 34,484
Loss on property sales			(109)				(538)
Total revenue	16,882		14,713		34,597		33,946
Operating expenses:
Lease operating expense	3,563		6,067		6,958		10,527
Transportation expense	3,625		4,359		7,568		7,642
Production taxes	611		786		1,461		1,691
Exploration expense	233		358		276		584
Dry hole costs and impairments	273		29,865		416		30,219
Depreciation, depletion, amortization and accretion	10,528		12,142		22,479		23,887
General and administrative expense	6,471		10,648		13,100		20,898
Total operating expenses	25,304		64,225		52,258		95,448
Operating loss	(8,422)		(49,512)		(17,661)		(61,502)
Other income and (expense):
Interest expense and financing costs, net	(7,997)		(7,781)		(14,803)		(16,484)
Other income	233		111		164		179
Realized loss on derivative instruments, net	(5,010)		(601)		(5,450)		(4,714)
Unrealized gain (loss) on derivative instruments, net	8,341		3,676		(2,612)		20,948
Income from unconsolidated affiliates	131		991		214		983
Total other income and (expense)	(4,302)		(3,604)		(22,487)		912
Loss from continuing operations before income taxes and discontinued operations	(12,724)		(53,116)		(40,148)		(60,590)
Income tax expense (benefit)	(3,938)		203		(4,633)		478
Loss from continuing operations	(8,786)		(53,319)		(35,515)		(61,068)
Discontinued operations:
Gain (loss) from results of operations and sale of discontinued operations, net of tax	9,320		(99,161)		5,785		(107,404)
Net income (loss)	534		(152,480)		(29,730)		(168,472)
Less net (gain) loss attributable to non-controlling interest included in discontinued operations	(1,497)		2,730		927		5,925
Net loss attributable to Delta common stockholders	(963)		(149,750)		(28,803)		(162,547)
Amounts attributable to Delta common stockholders:
Loss from continuing operations	(8,786)		(53,319)		(35,515)		(61,068)
Gain (loss) from discontinued operations, net of tax	7,823		(96,431)		6,712		(101,479)
Net loss	$ (963)		$ (149,750)		$ (28,803)		$ (162,547)
Basic loss attributable to Delta common stockholders per common share:
Loss from continuing operations	$ (0.31)	[1]	$ (1.93)	[1]	$ (1.27)	[1]	$ (2.22)	[1]
Discontinued operations	$ 0.28	[1]	$ (3.5)	[1]	$ 0.24	[1]	$ (3.68)	[1]
Net loss	$ (0.03)	[1]	$ (5.43)	[1]	$ (1.03)	[1]	$ (5.9)	[1]
Diluted loss attributable to Delta common stockholders per common share:
Loss from continuing operations	$ (0.31)	[1]	$ (1.93)	[1]	$ (1.27)	[1]	$ (2.22)	[1]
Discontinued operations	$ 0.28	[1]	$ (3.5)	[1]	$ 0.24	[1]	$ (3.68)	[1]
Net loss	$ (0.03)	[1]	$ (5.43)	[1]	$ (1.03)	[1]	$ (5.9)	[1]

[1] All common share amounts (except par value and par value per share amounts) have been retroactively restated as of June 30, 2011 to reflect the Company's one-for-ten reverse common stock split effective July 13, 2011, as described in Note 10 - Stockholders' Equity to these consolidated financial statements.