[2] In June 2014, the company sold a working interest in some of its wells in the Piceance Basin to Legacy Reserves LP for $355 million.

[4] In June 2015, the company acquired 14,300 net acres in the Gallup oil window of the San Juan Basin for $26 million.

[5] In August 2015, the company acquired RKI Exploration & Production, LLC, giving it assets in the Permian Basin.

[6] In September 2015, the company sold its remaining mature coalbed methane properties in Wyoming's Powder River Basin for $80 million.

[9] In April 2016, the company sold its assets in the Piceance Basin to Terra Energy Partners for $911 million.