Press Releases

Energy Transfer Announces Mariner East 1 Pipeline is Back in Service

April 23, 2019 at 8:00 AM EDT

Mariner East 1 Provides Critical Transportation of Natural Gas Liquids from Eastern Ohio to the Marcus Hook Industrial Complex

DALLAS--(BUSINESS WIRE)--Apr. 23, 2019-- Energy Transfer LP (NYSE: ET) announced that effective today, Mariner East 1 pipeline has resumed operations. The 350-mile, 8-inch natural gas liquids (NGL) pipeline transports NGLs across Southern Pennsylvania to Energy Transfer’s Marcus Hook Industrial Complex in Delaware County, PA.

Energy Transfer worked closely with the Pennsylvania Public Utility Commission Bureau of Investigation and Enforcement (BI&E) throughout an extensive three-month investigation, through which Energy Transfer confirmed the integrity of the pipeline in the area of West Whiteland Township, Chester County, PA. The investigation also confirmed that at no time was Mariner East 1 ever destabilized in this area.

Mariner East 1 is part of Energy Transfer’s Mariner East system of pipelines designed to provide much-needed NGL takeaway capacity for the Marcellus and Utica Shale production areas in Eastern Ohio, West Virginia and Western Pennsylvania.

About Energy Transfer

Energy Transfer LP (NYSE: ET) owns and operates one of the largest and most diversified portfolios of energy assets in the United States, with a strategic footprint in all of the major domestic production basins. ET is a publicly traded limited partnership with core operations that include complementary natural gas midstream, intrastate and interstate transportation and storage assets; crude oil, natural gas liquids (NGL) and refined product transportation and terminalling assets; NGL fractionation; and various acquisition and marketing assets. ET, through its ownership of Energy Transfer Operating, L.P., formerly known as Energy Transfer Partners, L.P., also owns the general partner interests, the incentive distribution rights and 28.5 million common units of Sunoco LP (NYSE: SUN), and the general partner interests and 39.7 million common units of USA Compression Partners, LP (NYSE: USAC). For more information, visit the Energy Transfer website at

Forward-Looking Statements

Statements in this press release may be forward-looking statements as defined under federal law. These forward-looking statements rely on a number of assumptions concerning future events and are subject to a number of uncertainties and factors, many of which are outside the control of ET, and a variety of risks that could cause results to differ materially from those expected by management of ET. An extensive list of factors that can affect future results are discussed in the Partnership’s Annual Report on Form 10-K and other documents filed from time to time with the Securities and Exchange Commission. ET undertakes no obligation to update or revise forward-looking statements to reflect changed assumptions, the occurrence of unanticipated events or changes to future operating results over time.

Source: Energy Transfer LP

Energy Transfer LP
Investor Relations:
William Baerg, Brent Ratliff, Lyndsay Hannah, 214-981-0795

Media Relations:
Vicki Granado and Lisa Dillinger, 214-840-5820

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