President, Marathon Pipe Line LLC
Craig O. Pierson joined Marathon Pipe Line Co. in June 1978 as a pipeline engineer in Martinsville, Ill. He moved to Findlay, Ohio, as an internal control auditor for Marathon and then back to a number of pipeline engineering and pipeline operations positions in Wyoming, Alaska, West Texas and Houston. In 1989, he rejoined Marathon to help develop a gas pipeline project in Syria. In 1991, Pierson was named manager of Engineering and Construction Services. He then held operations manager positions for Marathon Pipe Line in Wyoming and Illinois. In 2005, he was named vice president of operations for Marathon Pipe Line LLC. In May 2011, Pierson became president of Marathon Pipe Line and was named to his current role with MPLX LP in 2012. Pierson graduated from Ohio Northern University with a B.S. in mechanical engineering in 1978.