Cornerstone Pipe Now Flowing, “Backbone” of MPLX Utica Strategy

Cornerstone Pipeline Route Map

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In September MDN reported that part of Marathon Petroleum’s Cornerstone Pipeline began to flow condensate (see Utica Condensate Begins Flowing Through Cornerstone Pipeline). The approximately 50-mile pipeline was built to flow natural gas liquids (NGLs) from the MarkWest cryogenic processing plant in Cadiz, OH northwest connecting to M3’s fractionator plant in Scio and M3’s cryogenic processing plant in Leesville before terminating at Marathon’s refinery in Canton, OH. In September condensate was flowing from Cadiz to East Sparta. Good news! The entire pipeline is now up and running. In a surprising statement announcing full operations for the pipeline, Marathon CEO Gary Heminger said, “Cornerstone is the backbone of our Utica shale strategy.” That shows the immense importance the company places on this new pipeline…

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