Contact Us   |   Investor FAQs   |   Careers    

Mariner East 2 is the second phase of the Mariner East project that will expand takeaway capacity for the transportation of NGLs from the Marcellus and Utica Shales areas in Western Pennsylvania, West Virginia and Eastern Ohio to destinations in Pennsylvania, including our Marcus Hook Industrial Complex on the Delaware River, where they are processed, stored and distributed to local, domestic and waterborne markets. The first phase of the project, referred to as Mariner East 1, consisted of interstate and intrastate propane and ethane service and commenced operations in the fourth quarter of 2014 and the first quarter of 2016, respectively.

Mariner East 2 will expand the total takeaway capacity to 345 thousand barrels per day for interstate and intrastate propane, ethane and butane service, and is anticipated to commence operations by the end of 2018.

To learn more about Mariner East 2, visit, or click on the project site link below: