Marathon Petroleum Co. has made two leadership appointments, moving its director of business development and director of tax to vice president positions. 

Director of business development Brian Partee will become vice president of business development and director of tax Rick Linhardt has been appointed as vice president of tax. 

"We are delighted to welcome Brian and Rick to our executive leadership team," Chairman and CEO Gary Heminger said in a news release. "They both have a wealth of experience and knowledge that will benefit our Business Development and Tax organizations." 

Partee, who joined MPC in 1995 as the company's accountant in Marathon Pipe Line, served as MPC's manager of crude oil logistics prior to becoming director of business development last year. He is a graduate of Bowling Green University, where he earned his bachelor's in accounting, and also holds an MBA from the University of Findlay. 

Linhardt began his career with MPC in 2013 and served as manager of tax compliance prior to becoming director of tax in 2017. He holds a bachelor's degree in accounting from the University of Kansas and has been a certified public accountant for 32 years. 

MPC, the second-largest refiner in the U.S., has a crude oil refining capacity of about 1.9 million barrels per calendar day in its six refinery system. It's subsidiary Speedway LLC operates approximately 2,740 convenience stores in 21 states and is the second-largest convenience store chain in the U.S.