REGULATORY ASSETS AND LIABILITIES (Tables)

9 Months Ended

Sep. 30, 2014

Regulatory Assets and Liabilities Disclosure [Abstract]

Schedule of Regulatory Assets

Regulatory Assets consisted of the following items (in thousands):

	September 30, 2014		December 31, 2013
Environmental Remediation Costs:
Expended - Net	$	28,520	$	29,945
Liability for Future Expenditures	119,864		119,492
Deferred Asset Retirement Obligation Costs	31,598		31,142
Deferred Pension and Other Postretirement Benefit Costs	59,284		59,284
Deferred Gas Costs - Net	47,008		—
Conservation Incentive Program Receivable	—		10,526
Societal Benefit Costs Receivable	1,974		10,408
Premium for Early Retirement of Debt	—		955
Deferred Interest Rate Contracts (Note 11)	5,778		3,735
Energy Efficiency Tracker	15,906		10,420
Pipeline Supplier Service Charges	5,857		7,106
Pipeline Integrity Cost	3,342		2,902
AFUDC - Equity Related Deferrals	10,657		7,810
Other Regulatory Assets	2,455		2,356
Total Regulatory Assets	$	332,243	$	296,081

Schedule of Regulatory Liabilities

Regulatory Liabilities consisted of the following items (in thousands):

	September 30, 2014		December 31, 2013
Excess Plant Removal Costs	$	37,405	$	40,029
Deferred Revenues-Net	—		19,067
Conservation Incentive Program Payable	7,899		—
Other Regulatory Liabilities	800		1,853
Total Regulatory Liabilities	$	46,104	$	60,949