Dornick Hills Midstream

Dornick Hills Midstream (“Dornick Hills”) was formed in November 2004 to acquire a 170-mile natural gas gathering system and processing plant in Cooke and Grayson counties near Sherman, TX from Dynegy. The Company sold those assets to SemGas, L.P., the natural gas business unit of the SemGroup (NYSE: SEMG), in October 2006.