The Pennsylvania Attorney General’s (AG) office has filed nine counts of environmental crimes against a subsidiary of Energy Transfer LP for its alleged failure to properly oversee construction of the Revolution Pipeline, which ruptured and exploded in 2018.

AG Josh Shapiro said a statewide grand jury investigation found that ETC Northeast Pipeline LLC allegedly ignored environmental protocols and custom plans that were created to minimize erosion and the possibility of a landslide, which ultimately led to the explosion. The incident in Beaver County’s Center Township scorched nearby forests, destroyed a home, barn and vehicles, and caused six high voltage electric transmission towers to collapse. There were no injuries.

“The grand jurors heard testimony and examined...