Acquisitions and Dispositions of Oil and Gas Properties	12 Months Ended
Dec. 31, 2014
Business Combinations [Abstract]
Acquisitions and Dispositions of Oil and Gas Properties	(2) Acquisitions and Dispositions of Oil and Gas Properties During 2013, the Company acquired oil and gas leases in Burleson County, Texas for $67.4 million and in Mississippi and Louisiana for $53.3 million. The Burleson County, Texas acquisition included one producing well and approximately 21,000 net acres which are prospective for oil in the Eagle Ford shale formation. During 2014, the Company acquired additional interests in certain leases in Burleson County, Texas for approximately $33.9 million. The acquisition included approximately 9,000 net undeveloped acres and an additional 30% working interest in one producing well. The Mississippi and Louisiana acquisition included approximately 51,000 net acres which are prospective for oil in the Tuscaloosa Marine shale formation. During 2012, the Company completed the sale of certain oil and gas properties located in Tyler and Polk counties in South Texas and Lincoln Parish in North Louisiana. The Company received proceeds of $119.8 million and recognized a total gain of $26.0 million from these transactions. On July 30, 2012, the Company entered into a participation agreement with Kohlberg Kravis Roberts & Co L.P. (together with its affiliates, "KKR") providing for the participation of KKR in Comstock's future development of certain of its Eagle Ford shale properties in South Texas. Under the terms of the participation agreement, KKR has the right to participate for one-third of Comstock's working interest in wells drilled on the Company's acreage comprising its Eagleville field in exchange for KKR paying $25,000 per acre for the net acreage being acquired and one-third of the wells costs. Each well that KKR participates in is intended to earn KKR approximately one-third of the Company’s working interest in approximately 80 acres. The agreement applies to wells spud by the Company on or subsequent to March 31, 2012. Comstock received $23.8 million from KKR to fund its participation in drilling activity before the closing on July 30, 2012. The Company received $8.7 million, $51.5 million and $28.7 million for acreage and facility costs for new wells drilled subsequent to the closing in 2012, 2013 and 2014, respectively. Formation costs of $1.7 million incurred in connection with this joint venture are reflected as a reduction to the gains on sales of oil and gas properties in the consolidated statements of operations. In connection with acquisitions of producing oil and gas properties, the Company estimates the value of proved properties based on estimated future net cash flows and discounts them using a market-based rate that the Company determined appropriate at the acquisition date for the various proved reserve categories. Due to the unobservable nature of the inputs, the fair values of the proved oil and gas properties are considered Level 3 fair value measurements.

(2) Acquisitions and Dispositions of Oil and Gas Properties

During 2013, the Company acquired oil and gas leases in Burleson County, Texas for $67.4 million and in Mississippi and Louisiana for $53.3 million. The Burleson County, Texas acquisition included one producing well and approximately 21,000 net acres which are prospective for oil in the Eagle Ford shale formation. During 2014, the Company acquired additional interests in certain leases in Burleson County, Texas for approximately $33.9 million. The acquisition included approximately 9,000 net undeveloped acres and an additional 30% working interest in one producing well. The Mississippi and Louisiana acquisition included approximately 51,000 net acres which are prospective for oil in the Tuscaloosa Marine shale formation.

During 2012, the Company completed the sale of certain oil and gas properties located in Tyler and Polk counties in South Texas and Lincoln Parish in North Louisiana. The Company received proceeds of $119.8 million and recognized a total gain of $26.0 million from these transactions.

On July 30, 2012, the Company entered into a participation agreement with Kohlberg Kravis Roberts & Co L.P. (together with its affiliates, "KKR") providing for the participation of KKR in Comstock's future development of certain of its Eagle Ford shale properties in South Texas. Under the terms of the participation agreement, KKR has the right to participate for one-third of Comstock's working interest in wells drilled on the Company's acreage comprising its Eagleville field in exchange for KKR paying $25,000 per acre for the net acreage being acquired and one-third of the wells costs. Each well that KKR participates in is intended to earn KKR approximately one-third of the Company’s working interest in approximately 80 acres. The agreement applies to wells spud by the Company on or subsequent to March 31, 2012. Comstock received $23.8 million from KKR to fund its participation in drilling activity before the closing on July 30, 2012. The Company received $8.7 million, $51.5 million and $28.7 million for acreage and facility costs for new wells drilled subsequent to the closing in 2012, 2013 and 2014, respectively. Formation costs of $1.7 million incurred in connection with this joint venture are reflected as a reduction to the gains on sales of oil and gas properties in the consolidated statements of operations.

In connection with acquisitions of producing oil and gas properties, the Company estimates the value of proved properties based on estimated future net cash flows and discounts them using a market-based rate that the Company determined appropriate at the acquisition date for the various proved reserve categories. Due to the unobservable nature of the inputs, the fair values of the proved oil and gas properties are considered Level 3 fair value measurements.