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9. Derivative Instruments (Details-Outstanding derivative contracts)	9 Months Ended
	Sep. 30, 2015 $ / Boe bbl
Crude Oil Swaps 1 [Member]
Outstanding derivative contracts Settlement Period	October 1, 2015 - December 31, 2015
Outstanding derivative contracts, amount of oil (in Barrels) | bbl	6,000
Outstanding derivative contract, fixed price	88.28
Crude Oil Swaps 2 [Member]
Outstanding derivative contracts Settlement Period	October 1, 2015 - December 31, 2015
Outstanding derivative contracts, amount of oil (in Barrels) | bbl	5,250
Outstanding derivative contract, fixed price	89.70
Crude Oil Swaps 3 [Member]
Outstanding derivative contracts Settlement Period	October 1, 2015 - December 31, 2015
Outstanding derivative contracts, amount of oil (in Barrels) | bbl	3,000
Outstanding derivative contract, fixed price	92.38
Crude Oil Swaps 4 [Member]
Outstanding derivative contracts Settlement Period	October 1, 2015 - December 31, 2015
Outstanding derivative contracts, amount of oil (in Barrels) | bbl	7,500
Outstanding derivative contract, fixed price	90.16
Crude Oil Swaps 5 [Member]
Outstanding derivative contracts Settlement Period	October 1, 2015 - December 31, 2015
Outstanding derivative contracts, amount of oil (in Barrels) | bbl	36,000
Outstanding derivative contract, fixed price	61.87
Crude Oil Swaps 6 [Member]
Outstanding derivative contracts Settlement Period	April 1, 2016 - May 31, 2016
Outstanding derivative contracts, amount of oil (in Barrels) | bbl	15,000
Outstanding derivative contract, fixed price	62.88
Crude Oil Swaps 7 [Member]
Outstanding derivative contracts Settlement Period	April 1, 2016 - May 31, 2016
Outstanding derivative contracts, amount of oil (in Barrels) | bbl	10,000
Outstanding derivative contract, fixed price	90.36
Crude Oil Swaps 8 [Member]
Outstanding derivative contracts Settlement Period	April 1, 2016 - May 31, 2016
Outstanding derivative contracts, amount of oil (in Barrels) | bbl	4,000
Outstanding derivative contract, fixed price	88.15
Crude Oil Costless Collars1 [Member]
Outstanding derivative contracts Settlement Period	October 1, 2015 - December 31, 2015
Outstanding derivative contracts, amount of oil (in Barrels) | bbl	9,000
Outstanding derivative contracts Floor/Ceiling basis	NYMEX
Crude Oil Costless Collars1 [Member] | Minimum [Member]
Outstanding derivative contract, fixed price	75.00
Crude Oil Costless Collars1 [Member] | Maximum [Member]
Outstanding derivative contract, fixed price	95.60
Crude Oil Costless Collars2 [Member]
Outstanding derivative contracts Settlement Period	April 1, 2016 – May 31, 2016
Outstanding derivative contracts, amount of oil (in Barrels) | bbl	3,334
Outstanding derivative contracts Floor/Ceiling basis	NYMEX
Crude Oil Costless Collars2 [Member] | Minimum [Member]
Outstanding derivative contract, fixed price	80.00
Crude Oil Costless Collars2 [Member] | Maximum [Member]
Outstanding derivative contract, fixed price	89.50

X

- Definition

Outstanding derivative contracts Floor/Ceiling basis

+ References

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Outstanding derivative contracts Settlement Period

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- Definition

Fixed price related to the price risk swap derivative.

+ References

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- Definition

Total amount of product committed to be supplied under existing contracts or agreements.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef



-Publisher SEC



-Name Regulation S-K (SK)



-Number 229



-Section 1207



-Paragraph (a)



-Subparagraph (2)

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