Consolidated Statements of Income (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Sales-Outside	$ 1,226,165	$ 1,311,471
Sales-Gas Royalty Interests	14,204	12,206
Sales-Purchased Gas	1,358	839
Freight-Outside	14,061	49,293
Other Income	33,852	52,961
Total Revenue and Other Income	1,289,640	1,426,770
Cost of Goods Sold and Other Operating Charges (exclusive of depreciation, depletion and amortization shown below)	932,963	904,137
Gas Royalty Interests Costs	11,806	10,249
Purchased Gas Costs	959	517
Freight Expense	14,061	49,293
Selling, General and Administrative Expenses	33,670	38,903
Depreciation, Depletion and Amortization	161,315	155,347
Interest Expense	53,378	58,120
Taxes Other Than Income	82,787	91,627
Total Costs	1,290,939	1,308,193
Earnings Before Income Taxes	(1,299)	118,577
Income Taxes	522	21,381
Net (Loss) Income	(1,821)	97,196
Net Income (Loss) Attributable to Noncontrolling Interest	257	0
Net Income	$ (1,564)	$ 97,196
Earnings per share:
Basic	$ (0.01)	$ 0.43
Dilutive	$ (0.01)	$ 0.42
Weighted Average Number of Common Shares Outstanding:
Basic	228,318,123	227,269,269
Dilutive	228,318,123	230,124,011
Dividends Paid Per Share	$ 0.000	$ 0.125