Sunoco Logistics Planning Second Mariner East Pipeline for NGLs

More than a year ago MDN brought you the news that Sunoco Logistics’ Mariner East pipeline–an existing pipeline being upgraded to convey propane and ethane from western Pennsylvania all the way to the Marcus Hook refinery near Philadelphia–was completely spoken for (see Mariner East Pipeline to Philly Refinery 100% Committed). Range Resources announced at the time that they would be the main user of the pipeline (see Range Announces They’re Main Shipper for Mariner East Pipeline). Upgrades to the Mariner East are under way now and will be online beginning in 2014.

In re-reading those stories from last year, we should have noticed something we did not. Sunoco said they were considering a second “open season” for Mariner East. If the pipeline is already 100% committed, how can they take on even more customers? Answer: Build a second Mariner East pipeline. Thanks to an excellent bit of reporting in the Harrisburg Patriot-News, we now understand what that statement meant last year. In a story published yesterday, the Patriot-News says Sunoco is working on a plan to build a second Mariner East pipeline across PA. Although there are currently few details, the outlines of where the pipeline may go are taking shape thanks to notifications received by PA landowners in the Susquehanna Valley area…

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