Marathon Pipe Line LLC (MPL) is headquartered in Findlay, Ohio, and is a subsidiary of MPLX LP, a diversified, growth-oriented master limited partnership formed by Marathon Petroleum Corporation (MPC) to own, operate, develop and acquire midstream energy infrastructure assets. With over 110 years in the energy business, MPL is an industry leader of safely and reliably operating pipelines, storage tanks, marine facilities, and terminals.