MPLX LP is a key player in the energy sector, focusing on the midstream infrastructure and logistics in the United States. With a broad portfolio that includes the gathering, processing, and transportation of natural gas, as well as the handling of natural gas liquids, crude oil, and refined products, MPLX supports vital energy supply chains. It also operates in the inland marine business, moving products across the Mid-Continent and Gulf Coast regions. Founded in 2012 and based in Findlay, Ohio, MPLX is a subsidiary of Marathon Petroleum Corporation, underscoring its significant role in the energy industry.