Mariner East 2 NGL Pipeline

Part of the Global Oil Infrastructure Tracker, a Global Energy Monitor project.

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Global Oil Infrastructure Tracker Global Gas Infrastructure Tracker Gas and Hydrogen Pipelines LNG Terminals Oil and NGL Pipelines

Mariner East 2 NGL Pipeline is an operating natural gas liquids (NGL) pipeline in Ohio, West Virginia, Pennsylvania, Delaware, and Pennsylvania, USA.

Location

The pipeline runs through Ohio, West Virginia, Pennsylvania, and Delaware, USA.

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Project details

• Operator: Energy Transfer LP
• Owner: Energy Transfer LP
• Parent: Energy Transfer LP
• Capacity: 275,000 barrels per day
• Length: 350 miles
• Diameter: 20 inches
• Cost: US$3 billion
• Status: Operating
• Start year: 2022

Background

According to June 2020 data from the U.S. Energy Information Administration (EIA), the pipeline carries propane, butane, and natural gasoline. Permitting issues need to be resolved before the full capacity (275,000 barrels per day) is available, rather than the current 125,000 barrels per day.

Construction began in 2017.

As of November 2020, construction was expected to be complete by the end of the year. In October 2021, Energy Transfer received 48 criminal charges related to Pennsylvania environmental laws. More than two years after construction began, the project was not complete in early 2022.

In August 2022, Energy Transfer entered into a plea agreement after being convicted of some of the charges.

As of April 2022, it is complete, and the full capacity of 275,000 barrels per day was now permissible.