Consolidated Statements of Operations (Unaudited) (USD $) In Thousands, except Per Share data	3 Months Ended				9 Months Ended
	Sep. 30, 2011		Sep. 30, 2010		Sep. 30, 2011		Sep. 30, 2010
Revenue:
Oil and gas sales	$ 16,546		$ 12,653		$ 51,143		$ 47,138
Loss on property sales			(1)				(539)
Total revenue	16,546		12,652		51,143		46,599
Operating expenses:
Lease operating expense	3,577		4,555		10,535		15,082
Transportation expense	3,367		3,298		10,935		10,940
Production taxes	633		667		2,094		2,358
Exploration expense	53		368		329		952
Dry hole costs and impairments	420,447		(1,164)		420,863		29,762
Depreciation, depletion, amortization and accretion	10,701		11,522		33,180		35,410
General and administrative expense	6,065		7,872		19,165		28,770
Executive severance expense, net			(674)				(674)
Total operating expenses	444,843		26,444		497,101		122,600
Operating loss	(428,297)		(13,792)		(445,958)		(76,001)
Other income and (expense):
Interest expense and financing costs, net	(6,727)		(7,567)		(21,530)		(24,050)
Other income (expense)	(1,857)		508		(1,693)		686
Realized gain (loss) on derivative instruments, net	79		(418)		(5,371)		(5,132)
Unrealized gain on derivative instruments, net	6,749		7,124		4,137		28,072
Income (loss) from unconsolidated affiliates	80		(90)		294		893
Total other income and (expense)	(1,676)		(443)		(24,163)		469
Loss from continuing operations before income taxes and discontinued operations	(429,973)		(14,235)		(470,121)		(75,532)
Income tax expense (benefit)	64		86		(4,568)		564
Loss from continuing operations	(430,037)		(14,321)		(465,553)		(76,096)
Discontinued operations:
Gain (loss) from results of operations and sale of discontinued operations, net of tax	1,309		25,054		7,092		(81,644)
Net income (loss)	(428,728)		10,733		(458,461)		(157,740)
Less net (gain) loss attributable to non-controlling interest included in discontinued operations	(702)		3,209		225		9,134
Net income (loss) attributable to Delta common stockholders	(429,430)		13,942		(458,236)		(148,606)
Amounts attributable to Delta common stockholders:
Loss from continuing operations	(430,037)		(14,321)		(465,553)		(76,096)
Gain from discontinued operations, net of tax	607		28,263		7,317		(72,510)
Net income (loss)	$ (429,430)		$ 13,942		$ (458,236)		$ (148,606)
Basic loss attributable to Delta common stockholders per common share:
Loss from continuing operations	$ (15.42)	[1]	$ (0.52)	[1]	$ (16.59)	[1]	$ (2.76)	[1]
Discontinued operations	$ 0.02	[1]	$ 1.03	[1]	$ 0.26	[1]	$ (2.64)	[1]
Net income (loss)	$ (15.40)	[1]	$ 0.51	[1]	$ (16.33)	[1]	$ (5.40)	[1]
Diluted loss attributable to Delta common stockholders per common share:
Loss from continuing operations	$ (15.42)	[1]	$ (0.51)	[1]	$ (16.59)	[1]	$ (2.76)	[1]
Discontinued operations	$ 0.02	[1]	$ 1.00	[1]	$ 0.26	[1]	$ (2.64)	[1]
Net income (loss)	$ (15.40)	[1]	$ 0.49	[1]	$ (16.33)	[1]	$ (5.40)	[1]

[1] All common share amounts (except par value and par value per share amounts) have been retroactively restated 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.