Williams and Boardwalk Pipeline Partners LP have executed a letter of intent to form a joint venture that would develop a pipeline project to transport natural gas liquids from the infrastructure-constrained Marcellus and Utica shale plays to the rapidly expanding petrochemical and export complex on the U.S. Gulf Coast, as well as the developing petrochemical market in the Northeast U.S.

The proposed “Bluegrass Pipeline” design would provide producers with 200,000 barrels (bbl.) per day of mixed NGLs take-away capacity in Ohio, West Virginia and Pennsylvania. The proposed pipeline could be ...