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Supplemental Information on Oil and Gas Exploration and Productions Activities (Unaudited) - Schedule of Proved Developed and Undeveloped Oil and Gas Reserve Quantities (Details) | 12 Months Ended |
--- | --- | ---
Dec. 31, 2015 MBoe MMcf MBbls | Dec. 31, 2014 MBoe MMcf MBbls
Proved Developed and Undeveloped Reserve (Energy) [Roll Forward] |  |
Beginning of period | MBoe | 13,607 |
Revisions of previous estimates | MBoe | (1,244) |
Extensions, discoveries and other additions | MBoe | 926 |
Sales of properties | MBoe | (108) |
Production | MBoe | (1,663) |
End of period | MBoe | 11,518 |
Proved developed reserves | MBoe | 11,251 | 12,221
Proved undeveloped reserves | MBoe | 267 | 1,386
Williston Basin |  |
Proved Developed and Undeveloped Reserve (Energy) [Roll Forward] |  |
End of period | MBoe | 10,063 |
Proved Undeveloped Reserves | Williston Basin |  |
Proved Developed and Undeveloped Reserve (Energy) [Roll Forward] |  |
Concentration risk, percentage | 3.00% |
Brp Llc [Member] |  |
Proved Developed and Undeveloped Reserve (Energy) [Roll Forward] |  |
Percentage of partnership interest owned (percent) | 51.00% |
Crude Oil (MBbl) |  |
Proved Developed and Undeveloped Reserves [Roll Forward] |  |
Begging of period | 9,983 |
Revisions of previous estimates | (1,451) |
Extensions, discoveries and other additions | 776 |
Sales of properties | (98) |
Production | (1,136) |
End of period | 8,074 |
Proved developed reserves | 7,862 | 8,930
Proved undeveloped reserves | 212 | 1,053
NGLs (MBbl) |  |
Proved Developed and Undeveloped Reserves [Roll Forward] |  |
Begging of period | 1,229 |
Revisions of previous estimates | 89 |
Extensions, discoveries and other additions | 60 |
Sales of properties | 0 |
Production | (156) |
End of period | 1,222 |
Proved developed reserves | 1,196 | 1,098
Proved undeveloped reserves | 26 | 131
Natural Gas (MMcf) |  |
Proved Developed and Undeveloped Reserves [Roll Forward] |  |
Begging of period | MMcf | 14,370 |
Revisions of previous estimates | MMcf | 701 |
Extensions, discoveries and other additions | MMcf | 541 |
Sales of properties | MMcf | (62) |
Production | MMcf | (2,226) |
End of period | MMcf | 13,324 |
Proved developed reserves | MMcf | 13,157 | 13,161
Proved undeveloped reserves | MMcf | 167 | 1,209

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- Definition Energy measure of increase in quantity of proved reserve of oil and gas resulting from the extension of the proved acreage of previously discovered reservoir or discovery of new field with proved reserve or of new reservoir of proved reserve in old field, stated in a unit of energy. For example, but not limited to, barrel of oil equivalents (BOE) or one thousand cubic feet of natural gas equivalent (Mcfe). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 932 -SubTopic 235 -Section 50 -Paragraph 5 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=51678428&loc=d3e61831-109447 + Details
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- Definition The net quantity of proved reserves as of the balance sheet date. Proved oil reserves are the estimated quantities of crude oil and natural gas liquids which geological and engineering data demonstrate with reasonable certainty to be recoverable. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 932 -SubTopic 235 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=51678428&loc=d3e61831-109447 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 932 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-10.(a)(2)) -URI http://asc.fasb.org/extlink&oid=50486907&loc=d3e511914-122862 + Details
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- Definition Net quantities of an enterprise's interests in proved developed reserves of either crude oil (including condensate and natural gas liquids), natural gas, synthetic oil and gas, or other nonrenewable natural resource that is intended to be upgraded into synthetic oil and gas as of the beginning and the end of the year. "Net" quantities of reserves include those relating to the enterprise's operating and nonoperating interests in properties. Quantities of reserves relating to royalty interests owned are included in "net" quantities if the necessary information is available to the enterprise. "Net" quantities does not include reserves relating to interests of others in properties owned by the enterprise. The unit of measure for reserve quantities is defined as "barrels" for oil and synthetic oil reserves or "cubic feet" or "cubic meters" for natural gas and synthetic gas reserves. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 932 -SubTopic 235 -Section 50 -Paragraph 9 -URI http://asc.fasb.org/extlink&oid=51678428&loc=d3e61884-109447 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 932 -SubTopic 235 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=51678428&loc=d3e61797-109447 + Details
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