Environmentalist groups stop construction of oil export terminal in Philadelphia, 2016
Philadelphia Energy Solutions (PES) is a private oil and gas manufacturer that owns the largest oil unloading and refining facility on the East Coast of the United States. Labelled by the Environmental Protection Agency as a high priority violator since April 2012, the PES has long been criticized by environmentalist groups for releasing air and water pollutants and failing to comply with the Clean Air Act.