Independent oil refiner and marketer Marathon Petroleum Corporation (MPC) reported second-quarter adjusted earnings per share of $4.12, which comfortably beat the Zacks Consensus Estimate of$3.04. The outperformance primarily reflects the stronger-than-expected performance of its Refining & Marketing segment. Operating income of the segment totaled $1.3 billion, surpassing the consensus mark of$1 billion.However, the company’s bottom line fell from the year-ago adjusted profit of $5.32 due to a drop in re ...