Derivatives and Hedging-Disclosures and Fair Value Measurements (Tables)

12 Months Ended

Sep. 30, 2015

Partnership's Financial Assets and Liabilities Measured at Fair Value on Recurring Basis

The Partnership had no assets or liabilities that are measured at fair value on a nonrecurring basis subsequent to their initial recognition. The Partnership’s financial assets and liabilities measured at fair value on a recurring basis are listed on the following table.

(In thousands)					Fair Value Measurements at Reporting Date Using:
Derivatives Not Designated as Hedging Instruments Under FASB ASC 815-10	Balance Sheet Location	Total			Quoted Prices in Active Markets for Identical Assets Level 1			Significant Other Observable Inputs Level 2
Asset Derivatives at September 30, 2015
Commodity contracts	Fair asset and fair liability value of derivative instruments	$	26,628		$	930		$	25,698
Commodity contracts	Long-term derivative assets included in the other long-term liabilities balance		4,975			2,017			2,958
Commodity contract assets at September 30, 2015		$	31,603		$	2,947		$	28,656
Liability Derivatives at September 30, 2015
Commodity contracts	Fair liability and fair asset value of derivative instruments	$	(41,270	)	$	—		$	(41,270	)
Commodity contracts	Cash collateral		2,758			2,758			—
Commodity contracts	Long-term derivative liabilities included in the other long-term liabilities balance		(5,977	)		(2,038	)		(3,939	)
Commodity contract liabilities at September 30, 2015		$	(44,489	)	$	720		$	(45,209	)
Asset Derivatives at September 30, 2014
Commodity contracts	Fair asset and fair liability value of derivative instruments	$	26,263		$	2,328		$	23,935
Commodity contract assets at September 30, 2014		$	26,263		$	2,328		$	23,935
Liability Derivatives at September 30, 2014
Commodity contracts	Fair liability and fair asset value of derivative instruments	$	(36,279	)	$	—		$	(36,279	)
Commodity contract liabilities at September 30, 2014		$	(36,279	)	$	—		$	(36,279	)

(In thousands)
The Effect of Derivative Instruments on the Statement of Operations
		Amount of (Gain) or Loss Recognized Years Ended September 30,
Derivatives Not Designated as Hedging Instruments Under FASB ASC 815-10	Location of (Gain) or Loss Recognized in Income on Derivative	2015		2014			2013
Commodity contracts	Cost of product (a)	$	13,368	$	11,781		$	17,769
Commodity contracts	Cost of installations and service (a)	$	1,831	$	(202	)	$	(440	)
Commodity contracts	Delivery and branch expenses (a)	$	2,098	$	(104	)	$	(286	)
Commodity contracts	(Increase) / decrease in the fair value of derivative instruments	$	4,187	$	6,566		$	6,775

(a) Represents realized closed positions and includes the cost of options as they expire.

Partnership's Derivatives Assets (Liabilities) Offset by Counterparty

The Partnership’s derivative assets (liabilities) offset by counterparty and subject to an enforceable master netting arrangement are listed on the following table.

(In thousands)									Gross Amounts Not Offset in the Statement of Financial Position
Offsetting of Financial Assets (Liabilities) and Derivative Assets (Liabilities)	Gross Assets Recognized		Gross Liabilities Offset in the Statement of Financial Position			Net Assets (Liabilities) Presented in the Statement of Financial Position			Financial Instruments		Cash Collateral Received		Net Amount
Fair asset value of derivative instruments	$	935	$	—		$	935		$	—	$	—	$	935
Fair liability value of derivative instruments		25,693		(38,512	)		(12,819	)		—		—		(12,819	)
Long-term derivative liabilities included in other long-term liabilities, net		4,975		(5,977	)		(1,002	)						(1,002	)
Total at September 30, 2015	$	31,603	$	(44,489	)	$	(12,886	)	$	—	$	—	$	(12,886	)
Fair asset value of derivative instruments	$	2,342	$	—		$	2,342		$	—	$	—	$	2,342
Fair liability value of derivative instruments		23,921		(36,279	)		(12,358	)		—		—		(12,358	)
Total at September 30, 2014	$	26,263	$	(36,279	)	$	(10,016	)	$	—	$	—	$	(10,016	)

Partnership's Derivatives Assets (Liabilities) Offset by Counterparty

The Partnership’s derivative assets (liabilities) offset by counterparty and subject to an enforceable master netting arrangement are listed on the following table.

(In thousands)									Gross Amounts Not Offset in the Statement of Financial Position
Offsetting of Financial Assets (Liabilities) and Derivative Assets (Liabilities)	Gross Assets Recognized		Gross Liabilities Offset in the Statement of Financial Position			Net Assets (Liabilities) Presented in the Statement of Financial Position			Financial Instruments		Cash Collateral Received		Net Amount
Fair asset value of derivative instruments	$	935	$	—		$	935		$	—	$	—	$	935
Fair liability value of derivative instruments		25,693		(38,512	)		(12,819	)		—		—		(12,819	)
Long-term derivative liabilities included in other long-term liabilities, net		4,975		(5,977	)		(1,002	)						(1,002	)
Total at September 30, 2015	$	31,603	$	(44,489	)	$	(12,886	)	$	—	$	—	$	(12,886	)
Fair asset value of derivative instruments	$	2,342	$	—		$	2,342		$	—	$	—	$	2,342
Fair liability value of derivative instruments		23,921		(36,279	)		(12,358	)		—		—		(12,358	)
Total at September 30, 2014	$	26,263	$	(36,279	)	$	(10,016	)	$	—	$	—	$	(10,016	)