SUPPLEMENTARY OIL AND NATURAL GAS INFORMATION (UNAUDITED) (Details) bbl in Thousands, MMcf in Thousands, $ in Thousands	12 Months Ended
	Sep. 30, 2015 USD ($) Boe MMcf bbl	Sep. 30, 2014 USD ($) Boe MMcf bbl	Sep. 30, 2015 USD ($) Boe	Sep. 30, 2014 USD ($)
Oil and Gas Exploration and Production Industries Disclosures [Abstract]
Proved undeveloped reserves | Boe			0
Changes in the estimates of net interests in total proved developed reserves of oil and natural gas liquids and natural gas
Balance at the beginning of the period | Boe	2,356,000	2,689,000
Revisions of previous estimates | Boe	(11,000)	499,000
Extensions, discoveries and other additions | Boe	1,000	67,000
Acquisitions of reserves | Boe	140,000
Less sales of reserves | Boe	(1,044,000)	(383,000)
Less production | Boe	(434,000)	(516,000)
Balance at the end of the period | Boe	1,008,000	2,356,000
Capitalized Costs Relating to Oil and Natural Gas Producing Activities
Proved properties			$ 62,960	$ 209,201
Unproved properties			145	501
Total capitalized costs			63,105	209,702
Accumulated depletion and depreciation			57,460	191,478
Net capitalized costs			5,645	18,224
Costs Incurred in Oil and Natural Gas Property Acquisition, Exploration and Development
Acquisition of unproved properties	$ 28	$ 42
Acquisition of proved properties	804	0
Exploration costs	0	884
Development costs	2,680	3,898
Total	3,512	4,824
Additions and revisions to asset retirement obligation included in development costs	1,234	2,542
Results of Operations for Oil and Natural Gas Producing Activities
Net revenues	9,008	20,298
Production costs	(6,387)	(8,914)
Depletion	(2,987)	(5,968)
Pre-tax results of operations	(366)	5,416
Estimated income tax expense	(921)	(1,557)
Results of operations	(1,287)	3,859
Standardized Measure of Discounted Future Net Cash Flows
Future cash inflows			27,749	82,912
Future production costs			(18,468)	(40,156)
Future development costs			(935)	(1,966)
Future income tax expenses			(2,361)	(9,671)
Future net cash flows			5,985	31,119
10% annual discount for timing of cash flows			(1,950)	(6,972)
Standardized measure of discounted future net cash flows	24,147	31,934	$ 4,035	$ 24,147
Changes in the Standardized Measure of Discounted Future Net Cash Flows
Beginning of year	24,147	31,934
Sales of oil and natural gas produced, net of production costs	(2,621)	(11,384)
Net changes in prices and production costs, net of royalties and wellhead taxes	(8,042)	8,670
Extensions and discoveries	1	2,199
Net change due to purchases and sales of minerals in place	(9,103)	(8,408)
Revisions of previous quantity estimates	634	4,862
Net change in income taxes	1,658	(4,148)
Accretion of discount	2,021	2,931
Other - changes in the timing of future production and other	(1,009)	(237)
Other - net change in Canadian dollar translation rate	(3,651)	(2,272)
Net change	(20,112)	(7,787)
End of year	$ 4,035	$ 24,147
OIL & NGL (Bbls)
Changes in the estimates of net interests in total proved developed reserves of oil and natural gas liquids and natural gas
Balance at the beginning of the period | bbl	724	923
Revisions of previous estimates | bbl	79	189
Extensions, discoveries and other additions | bbl	0	34
Acquisitions of reserves | bbl	46
Less sales of reserves | bbl	(237)	(238)
Less production | bbl	(143)	(184)
Balance at the end of the period | bbl	469	724
GAS (Mcf)
Changes in the estimates of net interests in total proved developed reserves of oil and natural gas liquids and natural gas
Balance at the beginning of the period | MMcf	9,465	10,245
Revisions of previous estimates | MMcf	(520)	1,798
Extensions, discoveries and other additions | MMcf	3	189
Acquisitions of reserves | MMcf	543
Less sales of reserves | MMcf	(4,679)	(840)
Less production | MMcf	(1,688)	(1,927)
Balance at the end of the period | MMcf	3,124	9,465