Penn America Energy wants to construct a massive LNG export terminal along the Delaware River in Chester.

Environmental groups are urging the Biden administration to reverse a Trump-era rule that allows rail shipments of liquified natural gas (LNG).

Drilling of the Marcellus and Utica shale created a glut of natural gas and drove down prices. Now, new pipelines and export terminals are aiding overseas sales.

Marcellus Shale production is expected to continue, an industry analyst said, and “we’re rapidly approaching a point where you may need to build capacity out of the Marcellus all the way to the Gulf Coast, and that’s an expensive proposition.”