CONSOLIDATED BALANCE SHEET (Unaudited) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2015		Dec. 31, 2014
Current Assets
Unrestricted cash and temporary cash investments	$ 80,120		$ 115,579
Restricted cash	910		1,051
Accounts receivable less allowance of $9,917 and $8,881, respectively	297,712		232,887
Unbilled revenues	91,112		95,816
Current regulatory assets (Note A)	87,071		92,764
Natural gas in storage, at average cost	31,437		86,428
Refundable taxes	17,612		15,211
Current portion of derivative assets (Note A)	6,847		6,849
Prepayments	22,510		10,696
Other	12,383		12,815
Total Current Assets	647,714		670,096
Other investments
Equity investment in GenConn (Note A)	111,709		114,195
Other	28,418		25,777
Total Other investments	140,127		139,972
Net Property, Plant and Equipment (Note A)	3,316,841		3,292,690
Regulatory Assets (Note A)	700,321		687,198
Deferred Charges and Other Assets
Unamortized debt issuance expenses	13,148		13,571
Other long-term receivable	1,489		1,490
Derivative assets (Note A)	19,583		20,421
Goodwill	266,205		266,205
Other	22,920		20,292
Total Deferred Charges and Other Assets	323,345		321,979
Total Assets	5,128,348	[1]	5,111,935	[1]
Current Liabilities
Line of credit borrowings	70,000		89,000
Current portion of long-term debt	6,527		6,526
Accounts payable	167,405		217,700
Dividends payable	24,459		24,428
Accrued liabilities	60,237		71,182
Current regulatory liabilities (Note A)	23,557		17,026
Taxes accrued	26,248		20,184
Interest accrued	25,558		22,437
Deferred income taxes	17,466		3,767
Current portion of derivative liabilities (Note A)	23,193		23,308
Total Current Liabilities	444,650		495,558
Deferred Income Taxes	604,160		585,335
Regulatory Liabilities (Note A)	491,155		491,896
Other Noncurrent Liabilities
Pension accrued	264,790		265,009
Other post-retirement benefits accrued	85,498		85,777
Derivative liabilities (Note A)	76,008		61,766
Other	48,278		46,924
Total Other Noncurrent Liabilities	474,574		459,476
Commitments and Contingencies (Note J)
Capitalization (Note B)
Long-term debt, net of unamortized discount and premium	1,710,168		1,711,349
Preferred Stock, not subject to mandatory redemption	119		119
Common Stock Equity
Common stock	1,153,251		1,149,985
Paid-in capital	20,218		21,587
Retained earnings	230,050		196,907
Accumulated other comprehensive income (loss)	3		(277)
Net Common Stock Equity	1,403,522		1,368,202
Total Capitalization	3,113,809		3,079,670
Total Liabilities and Capitalization	$ 5,128,348		$ 5,111,935

[1] I Includes $266.2 million of goodwill in the Gas Distribution segment as of March 31, 2015 and December 31, 2014.