Marathon Petroleum (NYSE:MPC) has outperformed the market over the past 10 years by 3.34% on an annualized basis producing an average annual return of 14.54%. Currently, Marathon Petroleum has a market capitalization of $54.67 billion. Buying $100 In MPC: If an investor had bought $100 of MPC stock 10 years ago, it would be worth $390.03 today based on a price of $163.35 for MPC at the time of writing. Marathon Petroleum’s Performance Over Last 10 YearsFinally — what’s the point of all this? The key insight to take from this article is to note how much of a difference compounded returns can m…