FAIR VALUE - HIERARCHY (Details) - USD ($) $ in Thousands	Sep. 30, 2025	Sep. 30, 2024
Liabilities
Derivative Asset, Statement of Financial Position [Extensible Enumeration]	Assets
Derivative Liability, Statement of Financial Position [Extensible Enumeration]	Liabilities and Equity
Fair Value, Measurements, Recurring
Assets
Other	$ 2,589	$ 2,671
Total assets at fair value	17,427	10,352
Liabilities
Total liabilities at fair value	11,903	17,761
Fair Value, Measurements, Recurring | Money market funds
Assets
Assets	5	62
Fair Value, Measurements, Recurring | Physical commodity contracts
Assets
Assets	5,051	2,408
Liabilities
liabilities	9,811	15,683
Fair Value, Measurements, Recurring | Financial commodity contracts
Assets
Assets	9,782	5,211
Liabilities
liabilities	2,092	2,078
Fair Value, Measurements, Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1)
Assets
Other	2,589	2,671
Total assets at fair value	12,376	7,944
Liabilities
Total liabilities at fair value	2,092	2,078
Fair Value, Measurements, Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1) | Money market funds
Assets
Assets	5	62
Fair Value, Measurements, Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1) | Physical commodity contracts
Assets
Assets	0	0
Liabilities
liabilities	0	0
Fair Value, Measurements, Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1) | Financial commodity contracts
Assets
Assets	9,782	5,211
Liabilities
liabilities	2,092	2,078
Fair Value, Measurements, Recurring | Significant Other Observable Inputs (Level 2)
Assets
Other	0	0
Total assets at fair value	5,051	2,408
Liabilities
Total liabilities at fair value	9,811	15,683
Fair Value, Measurements, Recurring | Significant Other Observable Inputs (Level 2) | Money market funds
Assets
Assets	0	0
Fair Value, Measurements, Recurring | Significant Other Observable Inputs (Level 2) | Physical commodity contracts
Assets
Assets	5,051	2,408
Liabilities
liabilities	9,811	15,683
Fair Value, Measurements, Recurring | Significant Other Observable Inputs (Level 2) | Financial commodity contracts
Assets
Assets	0	0
Liabilities
liabilities	0	0
Fair Value, Measurements, Recurring | Significant Unobservable Inputs (Level 3)
Assets
Other	0	0
Total assets at fair value	0	0
Liabilities
Total liabilities at fair value	0	0
Fair Value, Measurements, Recurring | Significant Unobservable Inputs (Level 3) | Money market funds
Assets
Assets	0	0
Fair Value, Measurements, Recurring | Significant Unobservable Inputs (Level 3) | Physical commodity contracts
Assets
Assets	0	0
Liabilities
liabilities	0	0
Fair Value, Measurements, Recurring | Significant Unobservable Inputs (Level 3) | Financial commodity contracts
Assets
Assets	0	0
Liabilities
liabilities	$ 0	$ 0