Fair Value Measurements (Tables)

9 Months Ended

Jun. 30, 2021

Fair Value Disclosures [Abstract]

Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis

The following table presents the Company’s financial assets and liabilities that were accounted for at fair value on a recurring basis as of June 30, 2021 and September 30, 2020, by level within the fair value hierarchy:

	June 30, 2021
	Level 1		Level 2		Level 3		Total
	(In thousands)
Financial assets:
Commodity derivative assets	$	—	$	828	$	—	$	828
Interest rate assets	$	—	$	107	$	—	$	107
Financial liabilities:
Commodity derivative liabilities	$	—	$	(47,864)	$	—	$	(47,864)
Interest rate liabilities	$	—	$	(225)	$	—	$	(225)

	September 30, 2020
	Level 1		Level 2		Level 3		Total
	(In thousands)
Financial assets:
Commodity derivative assets	$	—	$	24,341	$	—	$	24,341
Financial liabilities:
Commodity derivative liabilities	$	—	$	(1,672)	$	—	$	(1,672)
Interest rate liabilities	$	—	$	(748)	$	—	$	(748)