Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013
Current Assets
Cash and cash equivalents	$ 7,704	$ 10,610
Margin deposits	32,626	18,474
Trade receivables - net	5,760	2,702
Accrued receivables	150,628	106,726
Natural gas inventory	75,140	83,416
Prepaid expenses and other current assets	4,330	4,688
Short-term risk management assets (Notes 12 and 13)	20,949	21,159
Total current assets	297,137	247,775
Long-term Assets
Property, plant and equipment, net of accumulated depreciation (Note 4)	908,274	918,061
Goodwill (Note 5)	245,604	245,604
Long-term natural gas inventory (Note 4)		15,264
Intangible assets, net of accumulated amortization (Note 5)	65,462	73,998
Deferred charges, net of accumulated amortization (Note 6)	14,640	14,420
Other Assets	3,268	2,677
Long-term risk management assets (Notes 12 and 13)	4,806	6,593
Total long-term assets	1,242,054	1,276,617
TOTAL	1,539,191	1,524,392
Current Liabilities
Revolving credit facility (Note 7)	119,500	65,000
Current portion of obligations under capital lease (Note 8)	1,299	1,259
Trade payables	1,023	1,048
Current portion of deferred taxes (Note 11)	5,678	14,303
Deferred revenue	6,036	568
Accrued liabilities (Note 9)	111,118	39,840
Short-term risk management liabilities (Notes 12 and 13)	19,105	20,005
Total current liabilities	263,759	142,023
Long-term Liabilities
Long-term risk management liabilities (Notes 12 and 13)	12,209	4,574
Asset retirement obligations (Note 10)	1,975	2,007
Other long-term liabilities	1,809	1,461
Deferred income taxes (Note 11)	119,373	120,935
Obligations under capital lease (Note 8)	10,926	12,225
Long-term debt (Note 7)	575,000	643,790
Total liabilities	721,292	784,992
MEMBERS' EQUITY
Common units	279,604	321,642
Subordinated units (Notes 1 and 14)		265,877
Managing Member's interest	274,536	9,858
Total members' equity	554,140	597,377
Commitments and contingencies (Notes 7, 14 and 19)
Subsequent events (Note 24)
TOTAL	$ 1,539,191	$ 1,524,392