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WATER AND LAND ASSETS - O&G Leases (Details) - a	1 Months Ended
	Sep. 30, 2017	Aug. 31, 2011
Anadarko E&P Company, L.P
Oil and Gas Lease Payments [Abstract]
Oil and Gas, Undeveloped Acreage, Net		634
Bison Oil and Gas LLP [Member]
Oil and Gas Lease Payments [Abstract]
Oil and Gas, Undeveloped Acreage, Net	40
Term period of lease	3 years

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- Definition

Leased area representing summation of fractional ownership working interest to whole on which oil and gas wells have not been drilled or completed that would permit production of economic quantities of oil and gas. Excludes area of undrilled acreage held by production under terms of lease.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name Regulation S-K (SK)
-Number 229
-Section 1208
-Paragraph b
-Publisher SEC

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