Leases (Tables)

12 Months Ended

Sep. 30, 2021

Leases [Abstract]

Components of Operating Lease Costs

The following table summarizes the components of the Company’s total operating lease costs (in thousands):

	Year Ended September 30
	2021		2020
Operating Lease Expense	$	5,268	$	4,129
Variable Lease Expense(1)	537		525
Short-Term Lease Expense(2)	1,279		918
Sublease Income	(356)		(297)
Total Lease Expense	$	6,728	$	5,275
Short-Term Lease Costs Recorded to Property, Plant and Equipment(3)	$	14,188	$	19,232

(1)Variable lease payments that are not dependent on an index or rate are not included in the lease liability.

(2)Short-term lease costs exclude expenses related to leases with a lease term of one month or less.

(3)Short-term lease costs relating to drilling rig leases that are capitalized as part of oil and natural gas properties under full cost pool accounting.

Balance Sheet Information Related to Operating Leases

The following amounts related to operating leases were recorded on the Company’s Consolidated Balance Sheet (in thousands):

	Year Ended September 30
	2021		2020
Assets:
Deferred Charges	$	23,601	$	19,850
Liabilities:
Other Accruals and Current Liabilities	$	3,963	$	4,943
Other Liabilities	$	19,638	$	14,777

Schedule of Operating Lease Liability Maturities

The following schedule of operating lease liability maturities summarizes the undiscounted lease payments owed by the Company to lessors pursuant to contractual agreements in effect as of September 30, 2021 (in thousands):

	At September 30, 2021
2022	$	4,040
2023	3,526
2024	3,261
2025	3,049
2026	2,634
Thereafter	11,911
Total Lease Payments	28,421
Less: Interest	(4,820)
Total Lease Liability	$	23,601