Consolidated Balance Sheets (Unaudited) (USD $) In Thousands	Jun. 30, 2011		Dec. 31, 2010
Current assets:
Cash and cash equivalents	$ 3,894		$ 14,190
Short-term restricted deposits	100,000		100,000
Trade accounts receivable, net of allowance for doubtful accounts of $100 and $100, respectively	7,510		7,373
Assets held for sale - DHS subsidiary and oil and gas properties	66,704		108,218
Deposits and prepaid assets	2,617		1,720
Inventories	642		3,446
Other current assets	2,836		4,821
Total current assets	184,203		239,768
Oil and gas properties, successful efforts method of accounting:
Unproved	229,623		229,943
Proved	695,189		671,041
Pipeline and gathering systems	92,461		93,558
Other	13,815		13,556
Total property and equipment	1,031,088		1,008,098
Less accumulated depreciation and depletion	(247,438)		(232,493)
Net property and equipment	783,650		775,605
Long-term assets:
Investments in unconsolidated affiliates	3,590		3,376
Deferred financing costs	1,432		1,832
Other long-term assets	2,970		3,531
Total long-term assets	7,992		8,739
Total assets	975,845		1,024,112
Current liabilities:
Credit facility - Delta	15,000		0
Installment payable on property acquisition	99,144		97,874
3 3/4% Senior convertible notes - current	110,953		0
Accounts payable	21,030		27,616
Liabilities related to assets held for sale - DHS subsidiary and oil and gas properties	76,112		82,852
Other accrued liabilities	8,281		11,066
Derivative instruments	2,123		574
Total current liabilities	332,643		219,982
Long-term liabilities:
7% Senior notes	149,722		149,684
3 3/4% Senior convertible notes	0		108,593
Credit facility - Delta	0		29,130
Asset retirement obligations	3,299		2,709
Derivative instruments	3,482		2,419
Total long-term liabilities	156,503		292,535
Commitments and contingencies
Equity:
Preferred stock, $.01 par value: authorized 3,000,000 shares, none issued	0		0
Common stock, $.01 par value: authorized 200,000,000 shares, issued 29,095,000 shares at June 30, 2011 and 28,514,000 shares at December 31, 2010	291	[1]	285	[1]
Additional paid-in capital	1,640,295		1,635,783
Treasury stock at cost; zero shares at June 30, 2011 and 3,000 shares at December 31, 2010	0	[1]	(279)	[1]
Accumulated deficit	(1,150,145)		(1,121,342)
Total Delta stockholders' equity	490,441		514,447
Non-controlling interest	(3,742)		(2,852)
Total equity	486,699		511,595
Total liabilities and equity	$ 975,845		$ 1,024,112

[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.