Forrest Drilling Company

Forrest Drilling Company (“Forrest”) was a contract land drilling rig operator that owned and operated a fleet of seven large newly built diesel electric SCR land drilling rigs, ranging from 1,000 horsepower to 1,500 horsepower in size. In March 2006, Energy Spectrum invested in Forrest in partnership with Gungoll Exploration Company to build these drilling rigs. Forrest sold substantially all of its operating assets to a subsidiary of Chesapeake Energy (NYSE: CHK) in December 2010.