Highest salary at Marathon in year 2024 was $128,161. Number of employees at Marathon in year 2024 was 14. Average annual salary was $54,653 and median salary was $49,586. Marathon average salary is 17 percent higher than USA average and median salary is 14 percent higher than USA median salary. From 2023 to 2024, the average salary of employees at this employer increased 9.3 percent.