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ARTICLE · 30 JUNE 2010

New Ethane Pipeline in Marcellus Shale Announced

Duane Morris LLP
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MarkWest Liberty Midstream & Resources LLC (a partnership of MarkWest Energy Partners LP and The Energy & Minerals Group) and Sunoco Logistics Partners LP announced on June 1 a combined pipeline and marine project to move ethane produced in the Marcellus Shale to the U.S. Gulf Coast.

United StatesEnergy and Natural Resources
Duane Morris
Duane Morris
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MarkWest Liberty Midstream & Resources LLC (a partnership of MarkWest Energy Partners LP and The Energy & Minerals Group) and Sunoco Logistics Partners LP announced on June 1 a combined pipeline and marine project to move ethane produced in the Marcellus Shale to the U.S. Gulf Coast. The Marcellus Shale is a sedimentary rock formation that contains largely untapped natural gas reserves.

MarkWest Liberty states the Mariner Project will be able to ship 50,000 barrels per day of ethane to the Gulf Coast as soon as the second quarter of 2012, and could be scaled to transport higher volumes to support additional ethane production in the Marcellus Shale region.

The Mariner Project includes modifications to MarkWest Liberty's processing facilities to recover sufficient ethane to allow the residue gas to meet interstate gas-pipeline specifications and installation of additional facilities at its Houston, Pa., processing and fractionation complex to separate ethane for

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