Last week MPLX (i.e. MarkWest Energy) issued its third quarter 2018 update. MarkWest, since merging into Marathon Petroleum, has become a big, major player in a number of shale plays across the country. Our interest and focus is, of course, on the Marcellus/Utica. Did this recent update yield any interesting insights? It sure did! Gathered and processed volumes in the Marcellus/Utica are up, significantly, for MarkWest. The amount of gas (and NGLs) gathered in the M-U was up a huge 35% from the same period last year (3.1 Bcf/d), and processed volumes at MarkWest plants was up 10% year over year (5.5 Bcf/d). Here’s a look behind the curtain at MarkWest/MPLX.