Contractual Obligation, Term

No definition available.

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- Definition

Maximum termination outstanding obligations of contracts.

+ References

No definition available.

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- Definition

Minimum outstanding aggregate commitments.

+ References

No definition available.

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- Definition

Oil and Gas, Deficiency Fees

+ References

No definition available.

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- Definition

Payment for Long-term Purchase Commitment

+ References

No definition available.

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- Definition

Supply Agreement, Term

+ References

No definition available.

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- Definition

Amount of contractual obligation, including but not limited to, long-term debt, capital lease obligations, operating lease obligations, purchase obligations, and other commitments.

+ References

No definition available.

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- Definition

Cost incurred related to the gas activities, such as transportation, marketing and processing crude oil, natural gas and refined petroleum products.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 932
-SubTopic 235
-Section 50
-Paragraph 23
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-Publisher FASB
-Name Accounting Standards Codification
-Topic 225
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.2)
-URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688

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- Definition

Term of lessee's operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

+ References

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-Name Accounting Standards Codification
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-SubTopic 20
-Section 50
-Paragraph 3
-Subparagraph (a)(3)
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- Definition

The minimum amount the entity agreed to spend under the long-term purchase commitment.

+ References

No definition available.

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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- Definition

Rental expense for the reporting period incurred under operating leases, including minimum and any contingent rent expense, net of related sublease income.

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-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 20
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-Paragraph 1
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- Definition

Best estimate of the loss exposure for a reasonably possible liability for product liability damages for which no accrual has been recorded.

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-Publisher FASB
-Name Accounting Standards Codification
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- Definition

Minimum amount to be expended to satisfy the terms of arrangements in which the entity has agreed to expend funds to procure goods or services, excluding long-term purchase commitments or unconditional purchase obligations.

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-Publisher FASB
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-SubTopic 210
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Commitments and Contingencies (Details Textual) - USD ($)		12 Months Ended
	Feb. 17, 2017	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Long-term Purchase Commitment [Line Items]
Term of leases		5 years
Rent expense, including fees for operating expenses and consumption of electricity		$ 2,600,000	$ 2,900,000	$ 1,700,000
Deficiency fees		0
Minimum outstanding commitments		24,800,000
Capital Addition Purchase Commitments [Member]
Long-term Purchase Commitment [Line Items]
Long-term purchase commitment		55,300,000
Payment for long-term purchase commitment		49,700,000
Remaining minimum amount committed		5,600,000
Drilling Rig Commitments [Member]
Long-term Purchase Commitment [Line Items]
Maximum termination outstanding obligations of contracts		36,500,000
Loving County System Agreement [Member]
Long-term Purchase Commitment [Line Items]
Supply agreement, term				15 years
Total deficiency fee estimate		8,400,000
Transportation and processing fees under the agreement		14,400,000	$ 9,800,000
Eddy County [Member]
Long-term Purchase Commitment [Line Items]
Transportation and processing fees under the agreement		200,000
Corporate Joint Venture [Member] \| San Mateo Midstream [Member]
Long-term Purchase Commitment [Line Items]
Contractual obligation		232,600,000
Payment for long-term purchase commitment		$ 39,400,000
Corporate Joint Venture [Member] \| San Mateo Midstream [Member] \| Rustler Breaks and Wolf Asset Area [Member]
Long-term Purchase Commitment [Line Items]
Contractual obligation, term	15 years
Corporate Joint Venture [Member] \| San Mateo Midstream [Member] \| Rustler Breaks Asset Area [Member]
Long-term Purchase Commitment [Line Items]
Contractual obligation, term	15 years
Natural Gas Transportation Agreement [Member] \| Eddy County [Member]
Long-term Purchase Commitment [Line Items]
Supply agreement, term		18 years
Contractual obligation		$ 59,400,000
Natural Gas Transportation and Fractionation Agreement [Member] \| Eddy County [Member]
Long-term Purchase Commitment [Line Items]
Supply agreement, term		7 years
Contractual obligation		$ 132,500,000