MarkWest Energy, now part of MPLX (Marathon Petroleum) operates the nation’s largest cryogenic gas processing plant operation in the country–in West Virginia. The Sherwood Complex in Doddridge County, WV has the capacity to process up to 2.2 billion cubic feet per day (Bcf/d) of natgas, along with fractionation (separating out ethane) of up to 60,000 barrels per day (bpd). This year the facility will expand.
