STATEMENTS OF INCOME (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Gross Margin
Revenues	$ 296,838	$ 311,608	$ 1,063,016	$ 947,541
Cost of natural gas	120,345	133,161	626,687	517,420
Net margin	176,493	178,447	436,329	430,121
Operating expenses
Operations and maintenance	103,826	93,240	207,325	192,934
Depreciation and amortization	31,318	32,904	62,778	67,771
General taxes	14,537	12,996	30,061	28,271
Total operating expenses	149,681	139,140	300,164	288,976
Operating income	26,812	39,307	136,165	141,145
Other income	672	382	1,305	2,078
Other expense	(337)	(425)	(1,485)	(1,502)
Interest expense	(11,776)	(15,163)	(24,726)	(30,469)
Income before income taxes	15,371	24,101	111,259	111,252
Income taxes	(5,917)	(9,150)	(42,729)	(42,809)
Net income	$ 9,454	$ 14,951	$ 68,530	$ 68,443
Earnings per share (Note 5)
Basic	$ 0.18	$ 0.29	$ 1.32	$ 1.31
Diluted	$ 0.18	$ 0.29	$ 1.31	$ 1.31
Average shares (thousands)
Basic	51,797	52,319	52,065	52,319
Diluted	52,446	52,319	52,481	52,319
Dividends declared per share of stock	$ 0.28	$ 0.00	$ 0.28	$ 0.00