Dispositions	3 Months Ended
Mar. 31, 2018
Business Combinations [Abstract]
Dispositions	(4) DISPOSITIONS We recognized a pretax net gain on the sale of assets of $23,000 in first quarter 2018 compared to a pretax net gain of $22.6 million in the same period of the prior year. 2018 Dispositions Other. In first quarter 2018, we sold miscellaneous inventory and other assets for proceeds of $40,000 resulting in a pretax gain of $23,000. 2017 Dispositions Western Oklahoma. In first quarter 2017, we sold properties in Western Oklahoma for proceeds of $26.0 million and we recorded a gain of $22.5 million related to this sale, after closing adjustments and transaction fees. Other. In first quarter 2017, we sold miscellaneous proved and unproved properties, inventory, other assets and surface acreage for proceeds of $53,000 resulting in a pretax gain of $69,000.

Dispositions

3 Months Ended

Mar. 31, 2018

(4) DISPOSITIONS

We recognized a pretax net gain on the sale of assets of $23,000 in first quarter 2018 compared to a pretax net gain of $22.6 million in the same period of the prior year.

2018 Dispositions

Other. In first quarter 2018, we sold miscellaneous inventory and other assets for proceeds of $40,000 resulting in a pretax gain of $23,000.

2017 Dispositions

Western Oklahoma. In first quarter 2017, we sold properties in Western Oklahoma for proceeds of $26.0 million and we recorded a gain of $22.5 million related to this sale, after closing adjustments and transaction fees.

Other. In first quarter 2017, we sold miscellaneous proved and unproved properties, inventory, other assets and surface acreage for proceeds of $53,000 resulting in a pretax gain of $69,000.