FINDLAY, Ohio — Michael G. Braddock, vice president and controller of Marathon Petroleum Corp. (MPC), will retire Oct. 1 after 34 years with the company. Until his retirement, Braddock will continue as vice president and chief accounting officer of both MPC and MPLX LP. In conjunction with Braddock’s pending retirement, MPC appointed John J. Quaid to the position of vice president and controller, effective June 23. For more information, visit www.marathonpetroleum.com or call (419) 422-2121.