Derivative Instruments (Tables)

6 Months Ended

Mar. 31, 2022

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Schedule of Notional Amounts of Outstanding Derivative Positions

The following table summarizes the open financial derivative positions as of March 31, 2022, related to oil and natural gas production:

		Weighted Average Price
Calendar Quarter / Year	Notional Volume	Fixed		Put		Call
		($ per unit)
Oil Swaps (Bbl)
Q2 2022	345,000	$	57.47	$	—	$	—
Q3 2022	270,000	$	56.03	$	—	$	—
Q4 2022	270,000	$	56.03	$	—	$	—
2023	720,000	$	53.27	$	—	$	—
Natural Gas Swaps (Mcf)
Q2 2022	540,000	$	3.26	$	—	$	—
Q3 2022	540,000	$	3.26	$	—	$	—
Q4 2022	540,000	$	3.26	$	—	$	—
Oil Collars (Bbl)
Q2 2022	90,000	$	—	$	35.00	$	42.63
Q3 2022	117,000	$	—	$	37.31	$	59.43
Q4 2022	90,000	$	—	$	35.00	$	42.63
2023	—	$	—	$	—	$	—
2024	3,000	$	—	$	50.00	$	88.00
Oil Basis (Bbl)
Q2 2022	240,000	$	0.41	$	—	$	—
Q3 2022	240,000	$	0.41	$	—	$	—
Q4 2022	240,000	$	0.41	$	—	$	—

The following table summarizes the open interest rate derivative positions as of March 31, 2022:

Open Coverage Period	Notional Amount		Fixed Rate
	(In thousands)
Floating-to-Fixed Interest Rate Swaps
April 2022 - September 2023	$	40,000	0.24	%

Schedule of Derivative Instruments Location and Fair Value

The following table presents the location and fair value of the Company’s derivative contracts included in the condensed consolidated balance sheets as of March 31, 2022 and September 30, 2021:

	March 31, 2022
Balance Sheet Classification	Gross Fair Value		Amounts Netted		Net Fair Value
	(In thousands)
Current derivative assets	$	772	$	(79)	$	693
Non-current derivative assets	468		(14)		454
Current derivative liabilities	(58,333)		79		(58,254)
Non-current derivative liabilities	(14,313)		14		(14,299)
Total	$	(71,406)	$	—	$	(71,406)
	September 30, 2021
Balance Sheet Classification	Gross Fair Value		Amounts Netted		Net Fair Value
	(In thousands)
Current derivative assets	$	186	$	(186)	$	—
Non-current derivative assets	228		(122)		106
Current derivative liabilities	(42,330)		186		(42,144)
Non-current derivative liabilities	(9,054)		122		(8,932)
Total	$	(50,970)	$	—	$	(50,970)

Schedule of Changes in Derivatives, net

The following table presents the Company's derivative activities for the three and six months ended March 31, 2022 and 2021:

	Three Months Ended March 31,				Six Months Ended March 31,
	2022		2021		2022		2021
	(In thousands)
Fair value of net asset (liability), beginning of period	$	(40,149)	$	2,839	$	(50,970)	$	21,921
Loss on derivatives	(49,632)		(24,903)		(54,825)		(38,812)
Settlements on derivatives	18,375		2,594		34,389		(2,579)
Fair value of net liability, end of period	$	(71,406)	$	(19,470)	$	(71,406)	$	(19,470)