MarkWest Energy, now part of MPLX (Marathon Petroleum) operates the nation’s largest cryogenic gas processing plant operation in the country, the Sherwood Complex, in West Virginia (see Nation’s Biggest NatGas Processing Plant (in WV) Getting Bigger). MarkWest/MPLX released its quarterly update yesterday. The company has grown, a lot, with operations in multiple regions of the country. Our interest is, of course, the Marcellus/Utica. Gathered volumes in the M-U averaged 3.4 billion cubic feet per day (Bcf/d) in 1Q19, up a huge 26% versus 1Q18. Processed volumes averaged 6.0 Bcf/d, an 18% increase over 1Q18 thanks to expanded volumes from the Sherwood (in Doddridge County, WV) and Harmon Creek (in Washington County, PA) processing plants.