OREANDA-NEWS. December 23, 2015. Marathon Petroleum Corporation (NYSE: MPC) President and Chief Executive Officer Gary R. Heminger today announced changes in the company's senior management structure that will be effective Jan. 1, 2016.

Donald C. Templin, executive vice president, Supply, Transportation and Marketing, has been named president, MPLX (NYSE: MPLX). Templin will continue to report to Heminger and remain an executive vice president of MPC. He will be located in Findlay.

Also effective Jan. 1, Pamela K. M. Beall, MPC's senior vice president, Corporate Planning, Government and Public Affairs, will become executive vice president, Corporate Planning and Strategy at MPLX, reporting to Templin. She will also remain in Findlay. 

Additionally, David L. Whikehart, director, Product Supply & Optimization, has been named vice president, Corporate Planning, Government and Public Affairs, succeeding Ms. Beall.  He will report to Heminger and remain in Findlay.