Marathon (MPC) Follows Refining Peers to Q4 Earnings Beat Posted byZacks Equity Research February 2, 2022 Leave a comment on Marathon (MPC) Follows Refining Peers to Q4 Earnings Beat Marathon Petroleum (MPC) repurchased shares worth $3 billion during the October-January period and has now completed around 55% of its target to buy back $10 billion in common stock.