Acquisitions and Divestitures	6 Months Ended
Jun. 30, 2018
Acquisitions and Divestitures
Acquisitions and Divestitures	4. ACQUISITIONS AND DIVESTITURES Briggs Divestiture In April 2018, we entered into a purchase and sale agreement to sell specified wellbores and other associated assets and interests in La Salle County Texas (the “Briggs Assets”) for a base purchase price of approximately $4.5 million which, after giving effect to preliminary purchase price adjustments, was reduced to approximately $4.0 million (the “Briggs Divestiture”), and remains subject to final post-closing adjustments. In addition, other than a limited amount of retained obligations, the buyer agreed to assume all obligations relating to the Briggs Assets, including all plugging and abandonment costs, that may arise on or after March 1, 2018. The Briggs Divestiture closed April 30, 2018, and we recorded a gain of approximately $1.6 million on the sale during the second quarter 2018. Cola Divestiture In April 2018, we entered into a purchase and sale agreement to sell certain non-operated production assets located in Oklahoma for cash consideration of approximately $1.0 million. The Oklahoma Divestiture closed on April 30, 2018, and we recorded a gain of approximately $1.1 million on the sale during the second quarter 2018. Texas Production Divestiture In October 2017, we entered into a purchase and sale agreement to sell specified oil and gas wells, leases and other associated assets and interests located in Texas (the “Texas Production Assets”) for cash consideration of approximately $6.3 million (the “Texas Production Divestiture”). In addition, the buyer agreed to assume all obligations relating to the assets, including all plugging and abandonment costs relating to the Texas Production Assets, that may arise on or after October 1, 2017. The Texas Production Divestiture closed November 13, 2017, and we recorded a gain of approximately $1.4 million on the sale during the fourth quarter of 2017. Non-Operated Production Divestiture In July 2017, we entered into an agreement to assign certain non-operated production assets located in Oklahoma, as well as our equity interests in the entities that owned such assets, in exchange for agreeing upon the apportionment of certain shared litigation costs. The assignment became effective as of July 14, 2017. Oklahoma Production Divestiture In May 2017, we entered into a purchase and sale agreement to sell all of the Partnership’s equity interests in the entities that owned our remaining operated Oklahoma production assets for cash consideration of $5.5 million, and assumption by the buyer of all obligations relating to such assets arising after the closing date and all plugging and abandonment costs relating to the assets arising prior to the closing date (the “Oklahoma Production Divestiture”). The Oklahoma Production Divestiture closed July 17, 2017, and we recorded a gain of $2.4 million on the sale during the third quarter of 2017.

4. ACQUISITIONS AND DIVESTITURES

Briggs Divestiture

In April 2018, we entered into a purchase and sale agreement to sell specified wellbores and other associated assets and interests in La Salle County Texas (the “Briggs Assets”) for a base purchase price of approximately $4.5 million which, after giving effect to preliminary purchase price adjustments, was reduced to approximately $4.0 million (the “Briggs Divestiture”), and remains subject to final post-closing adjustments. In addition, other than a limited amount of retained obligations, the buyer agreed to assume all obligations relating to the Briggs Assets, including all plugging and abandonment costs, that may arise on or after March 1, 2018. The Briggs Divestiture closed April 30, 2018, and we recorded a gain of approximately $1.6 million on the sale during the second quarter 2018.

Cola Divestiture

In April 2018, we entered into a purchase and sale agreement to sell certain non-operated production assets located in Oklahoma for cash consideration of approximately $1.0 million. The Oklahoma Divestiture closed on April 30, 2018, and we recorded a gain of approximately $1.1 million on the sale during the second quarter 2018.

Texas Production Divestiture

In October 2017, we entered into a purchase and sale agreement to sell specified oil and gas wells, leases and other associated assets and interests located in Texas (the “Texas Production Assets”) for cash consideration of approximately $6.3 million (the “Texas Production Divestiture”). In addition, the buyer agreed to assume all obligations relating to the assets, including all plugging and abandonment costs relating to the Texas Production Assets, that may arise on or after October 1, 2017. The Texas Production Divestiture closed November 13, 2017, and we recorded a gain of approximately $1.4 million on the sale during the fourth quarter of 2017.

Non-Operated Production Divestiture

In July 2017, we entered into an agreement to assign certain non-operated production assets located in Oklahoma, as well as our equity interests in the entities that owned such assets, in exchange for agreeing upon the apportionment of certain shared litigation costs. The assignment became effective as of July 14, 2017.

Oklahoma Production Divestiture

In May 2017, we entered into a purchase and sale agreement to sell all of the Partnership’s equity interests in the entities that owned our remaining operated Oklahoma production assets for cash consideration of $5.5 million, and assumption by the buyer of all obligations relating to such assets arising after the closing date and all plugging and abandonment costs relating to the assets arising prior to the closing date (the “Oklahoma Production Divestiture”). The Oklahoma Production Divestiture closed July 17, 2017, and we recorded a gain of $2.4 million on the sale during the third quarter of 2017.