Divestitures	12 Months Ended
Dec. 31, 2018
Divestitures [Abstract]
Divestitures	NOTE 8. DIVESTITURES 2018 In August 2018, the Company closed the sale of certain oil and gas properties in Central Texas and Karnes County, Texas (the “Central Texas Divestiture”) to Magnolia Oil & Gas Parent LLC and Magnolia Oil & Gas Corporation (collectively, “Magnolia”) for total consideration of $134.4 million in cash, net of purchase price adjustments, and 4.2 million shares of common stock of Magnolia (NYSE: MGY). Based on the closing price for Magnolia’s common stock on August 31, 2018, total consideration was $192.7 million, net of purchase price adjustments. The Company did not record a gain or loss on this sale. The Company recognized impairment expense of $2.9 million during the seven months ended December 31, 2018 related to the sale of these properties. During January 2019, the Company sold all of its 4.2 million shares of common stock of Magnolia for net proceeds of $51.7 million. In addition, in August 2018, the Company closed the sale of certain oil and gas properties in Central Texas to a third party for total consideration of $3.4 million, net of purchase price adjustments. The Company did not record a gain or loss on this sale. The Company recognized impairment expense of $0.2 million during the seven months ended December 31, 2018 related to the sale of these properties. In December 2018, the Company closed the sale of certain oil and gas properties in Central Texas to a third party for total consideration of $2.6 million, net of preliminary purchase price adjustments. The Company recorded a gain of $0.7 million on this sale. In addition, in December 2018, the Company closed the sale of certain oil and gas properties in the Mid–Continent area to a third party for total consideration of $1.0 million, net of preliminary purchase price adjustments. The Company did not record a gain, loss or impairment related to this sale. In January 2019, the Company closed the sale of certain oil and gas properties in the Mid-Continent area to a third party for total consideration of $1.7 million, net of preliminary purchase price adjustments. On February 13, 2019, the Company entered into a definitive agreement to sell all of its (i) oil and gas properties in the San Juan Basin and (ii) membership interests in EnerVest Mesa, LLC, a wholly-owned subsidiary of EV Properties, L.P., to a third party for total consideration of $42.8 million in cash, subject to purchase price adjustments. The transaction is expected to close in April 2019 and has an effective date of October 1, 2018. The net book value as of December 31, 2018 of the San Juan assets and liabilities to be divested was approximately $61 million. As a result, the Company expects to record an impairment related to the sale of its San Juan properties in 2019. On February 27, 2019, the Company entered into a definitive agreement to sell certain oil and gas properties in the Mid-Continent area to a third party for total consideration of $2.5 million in cash, subject to purchase price adjustments. The transaction is expected to close in April 2019 and has an effective date of October 1, 2018. 2017 In February 2017, EVEP, along with certain institutional partnerships managed by EnerVest, entered into an Agreement of Sale and Purchase to sell certain oil and gas properties in Ohio and Pennsylvania to a third party. The transaction closed on April 10, 2017, and EVEP received net proceeds of $1.1 million. EVEP did not record a gain, loss or impairment related to this sale. In April 2017, EVEP sold certain oil and gas properties in East Texas to a third party. The transaction closed on April 5, 2017, and EVEP received net proceeds of $0.6 million. EVEP did not record a gain or loss on this sale. The Company recognized impairment expense of $2.9 million during the year ended December 31, 2017 related to the sale of these properties. In August 2017, EVEP sold certain acreage in the San Juan Basin to a third party. EVEP received net proceeds of $1.0 million and recorded a gain of $1.0 million on this sale. 2016 In December 2016, EVEP, along with certain institutional partnerships managed by EnerVest, closed on the sale of a portion of its Barnett Shale natural gas properties, and its share of the proceeds was $52.1 million (before post-closing adjustments). The Company recognized impairment expense of $89.5 million during the year ended December 31, 2016 related to the sale of these properties. Also, during 2016, EVEP received proceeds of $2.4 million for the sale of other oil and gas properties.

NOTE 8. DIVESTITURES

2018

In August 2018, the Company closed the sale of certain oil and gas properties in Central Texas and Karnes County, Texas (the “Central Texas Divestiture”) to Magnolia Oil & Gas Parent LLC and Magnolia Oil & Gas Corporation (collectively, “Magnolia”) for total consideration of $134.4 million in cash, net of purchase price adjustments, and 4.2 million shares of common stock of Magnolia (NYSE: MGY). Based on the closing price for Magnolia’s common stock on August 31, 2018, total consideration was $192.7 million, net of purchase price adjustments. The Company did not record a gain or loss on this sale. The Company recognized impairment expense of $2.9 million during the seven months ended December 31, 2018 related to the sale of these properties.

During January 2019, the Company sold all of its 4.2 million shares of common stock of Magnolia for net proceeds of $51.7 million.

In addition, in August 2018, the Company closed the sale of certain oil and gas properties in Central Texas to a third party for total consideration of $3.4 million, net of purchase price adjustments. The Company did not record a gain or loss on this sale. The Company recognized impairment expense of $0.2 million during the seven months ended December 31, 2018 related to the sale of these properties.

In December 2018, the Company closed the sale of certain oil and gas properties in Central Texas to a third party for total consideration of $2.6 million, net of preliminary purchase price adjustments. The Company recorded a gain of $0.7 million on this sale.

In addition, in December 2018, the Company closed the sale of certain oil and gas properties in the Mid–Continent area to a third party for total consideration of $1.0 million, net of preliminary purchase price adjustments. The Company did not record a gain, loss or impairment related to this sale.

In January 2019, the Company closed the sale of certain oil and gas properties in the Mid-Continent area to a third party for total consideration of $1.7 million, net of preliminary purchase price adjustments.

On February 13, 2019, the Company entered into a definitive agreement to sell all of its (i) oil and gas properties in the San Juan Basin and (ii) membership interests in EnerVest Mesa, LLC, a wholly-owned subsidiary of EV Properties, L.P., to a third party for total consideration of $42.8 million in cash, subject to purchase price adjustments. The transaction is expected to close in April 2019 and has an effective date of October 1, 2018. The net book value as of December 31, 2018 of the San Juan assets and liabilities to be divested was approximately $61 million. As a result, the Company expects to record an impairment related to the sale of its San Juan properties in 2019.

On February 27, 2019, the Company entered into a definitive agreement to sell certain oil and gas properties in the Mid-Continent area to a third party for total consideration of $2.5 million in cash, subject to purchase price adjustments. The transaction is expected to close in April 2019 and has an effective date of October 1, 2018.

2017

In February 2017, EVEP, along with certain institutional partnerships managed by EnerVest, entered into an Agreement of Sale and Purchase to sell certain oil and gas properties in Ohio and Pennsylvania to a third party. The transaction closed on April 10, 2017, and EVEP received net proceeds of $1.1 million. EVEP did not record a gain, loss or impairment related to this sale.

In April 2017, EVEP sold certain oil and gas properties in East Texas to a third party. The transaction closed on April 5, 2017, and EVEP received net proceeds of $0.6 million. EVEP did not record a gain or loss on this sale. The Company recognized impairment expense of $2.9 million during the year ended December 31, 2017 related to the sale of these properties.

In August 2017, EVEP sold certain acreage in the San Juan Basin to a third party. EVEP received net proceeds of $1.0 million and recorded a gain of $1.0 million on this sale.

2016

In December 2016, EVEP, along with certain institutional partnerships managed by EnerVest, closed on the sale of a portion of its Barnett Shale natural gas properties, and its share of the proceeds was $52.1 million (before post-closing adjustments). The Company recognized impairment expense of $89.5 million during the year ended December 31, 2016 related to the sale of these properties. Also, during 2016, EVEP received proceeds of $2.4 million for the sale of other oil and gas properties.