CONSOLIDATED STATEMENT OF CASH FLOWS (UNAUDITED) (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012
Cash Flows From Operating Activities
Net income	$ 69,741	$ 59,088
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	96,986	90,815
Deferred income taxes	3,527	23,353
Allowance for funds used during construction (AFUDC) - equity	(5,334)	(3,884)
Stock-based compensation expense (Note A)	3,017	3,709
Pension expense	24,083	20,118
Undistributed (earnings) losses in equity investments	(7,683)	(8,488)
Deferred purchased gas	44,692	26,345
Other non-cash items, net	(1,943)	(12,410)
Changes in:
Accounts receivable, net	29,624	(7,883)
Unbilled revenues	30,495	18,524
Natural gas in storage	22,589	30,025
Accounts payable	(47,949)	(45,080)
Cash distributions from GenConn	7,704	12,925
Interest accrued	(577)	187
Taxes accrued/refundable, net	31,276	43,459
Accrued liabilities	(11,543)	(3,975)
Accrued pension	(46,668)	(43,523)
Other assets	(2,365)	6,002
Other liabilities	(5,505)	(4,283)
Total Adjustments	164,426	145,936
Net Cash provided by Operating Activities	234,167	205,024
Cash Flows from Investing Activities
Plant expenditures including AFUDC debt	(143,983)	(145,199)
Cash distributions from GenConn	2,063	0
Changes in restricted cash	1,189	2,562
Deposits in New England East West Solution (NEEWS) (Note C)	(527)	(3,330)
Other	134	316
Net Cash (used in) Investing Activities	(141,124)	(145,651)
Cash Flows from Financing Activities
Issuance of common stock	72	1,943
Issuances of long-term debt	0	203,500
Payments on long-term debt	0	(103,500)
Line of credit borrowings (repayments), net	(43,000)	(140,000)
Payment of common stock dividend	(43,788)	(43,715)
Other	390	3,590
Net Cash (used in) Financing Activities	(86,326)	(78,182)
Unrestricted Cash and Temporary Cash Investments:
Net change for the period	6,717	(18,809)
Balance at beginning of period	17,857	30,999
Balance at end of period	24,574	12,190
Non-cash investing activity:
Plant expenditures included in ending accounts payable	23,904	18,301
Plant expenditures funded by deposits in NEEWS	(18,469)	0
Deposits in New England East West Solution (NEEWS)	$ 18,469	$ 0