Marathon(MPC) - 2024 Q1 - Quarterly Results

Exhibit 99.1 Marathon Petroleum Corp. Reports First-Quarter 2024 Results FINDLAY, Ohio, April 30, 2024 – Marathon Petroleum Corp. (NYSE: MPC) today reported net income attributable to MPC of $937 million, or$2.58 per diluted share, for the first quarter of 2024. In the first quarter of 2024, the company recorded an $89 million charge resulting from the quarterly fair-value remeasurement of outstanding performance-based stock compensation. This reduced diluted earnings per share by$0.20. This compares to n ...