Robert Madison Murphy holds the position of Chairman at Murphy USA, Inc. and Chairman for Murphy Oil USA, Inc. (a subsidiary of Murphy USA, Inc.).

He is also on the board of Murphy Oil Corp. (former Chairman) and Hendrix College and President of Murphy Foundation, Director-Emeritus at The Council for Economic Education, Owner at Sumac Co. LLC, Managing Partner at Hard Bargain Farms and Secretary at Presqu'ile Winery.

In his past career he occupied the position of Managing Member at Murphy Family Management LLC.