CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands		3 Months Ended
		Dec. 31, 2018	Dec. 31, 2017
Sales:
Total sales		$ 535,027	$ 436,834
Cost and expenses:
(Increase) decrease in the fair value of derivative instruments	[1]	31,039	(11,400)
Delivery and branch expenses		102,673	91,204
Depreciation and amortization expenses		7,745	7,741
General and administrative expenses		7,815	6,651
Finance charge income		(851)	(763)
Operating income		6,063	31,066
Interest expense, net		(2,516)	(2,087)
Amortization of debt issuance costs		(259)	(309)
Income before income taxes		3,288	28,670
Income tax expense (benefit)		973	(1,512)
Net income		2,315	30,182
General Partner’s interest in net income		15	175
Limited Partners’ interest in net income		$ 2,300	$ 30,007
Basic and diluted income per Limited Partner Unit :	[2]	$ 0.04	$ 0.45
Weighted average number of Limited Partner units outstanding:
Basic and Diluted		52,905	55,888
Product
Sales:
Total sales		$ 458,707	$ 366,734
Installations and services
Sales:
Total sales		76,320	70,100
Cost of product
Cost and expenses:
Cost and expenses		306,226	242,780
Cost of installations and services
Cost and expenses:
Cost and expenses		$ 74,317	$ 69,555

[1] Represents the change in value of unrealized open positions and expired options.

[2] See Note 15 - Earnings Per Limited Partner Unit.