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INFORMATION RELATING TO THE CONSOLIDATED STATEMENTS OF CASH FLOWS (Details) (USD $)	12 Months Ended
	Sep. 30, 2012	Sep. 30, 2011
Increase (decrease) from changes in:
Receivables	$ 2,409,000	$ 2,894,000
Other current assets	46,000	656,000
Accounts payable	(214,000)	1,378,000
Accrued compensation	(739,000)	(7,000)
Other current liabilities	(357,000)	(1,073,000)
Increase from changes in current assets and liabilities	1,145,000	3,848,000
Supplemental disclosures of cash flow information:
Interest	743,000	996,000
Income taxes	457,000	1,774,000
Supplemental disclosure of non-cash investing and financing activities:
Long term debt borrowings refinanced		12,500,000
Oil and natural gas
Supplemental disclosures of cash flow information:
Increase (decrease) in capital expenditure accruals related to oil and gas exploration and development	(2,245,000)	298,000
Increase (decrease) in capital expenditure accruals related to oil and gas asset retirement obligations	$ 388,000	$ (207,000)

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