Intern/Co-op - Refining Mechanical Engineer (Fall 2026)

An exciting career awaits you At MPC, we’re committed to being a great place to work – one that welcomes new ideas, encourages diverse perspectives, develops our people, and fosters a collaborative team environment. Responsibilities As a Mechanical Engineer at a Marathon refinery, you can expect to become familiar with industry codes and best practices, build critical thinking skills, and gain an understanding of how all engineering disciplines work together as a cohesive team. You will also gain knowledge of various aspects of a refinery by working with a team of professionals who run a specific portion of the refining process. Most often, Mechanical Engineers will have an opportunity to work on more than one area of the refinery, leading to a broad understanding of how the plant operates. Finally, you will have the opportunity to expand your written and verbal presentation skills in a professional work environment. Potential roles: Area Refining Engineer / Project Engineer – Develop and use project management skills to create project scopes, estimates, and schedules. Once a project is approved, you will oversee the design effort and assist in construction. MPC provides training and educational opportunities to help you develop knowledge of other engineering disciplines. We are committed to developing engineers into professional project managers who can successfully manage projects of all sizes. Reliability Engineer – Support the refinery's Maintenance Department through design and development of equipment-related improvements. Such improvements include root cause failure analysis, optimization of maintenance programs on rotating equipment (pumps, compressors, etc.), and troubleshooting fixed equipment (refinery pressure vessels, heat exchangers, piping systems, etc.). Reliability Engineers are continuously challenged to find new technology in design, materials, and repair methods to achieve refinery goals of longer running times at lower costs. Qualifications Candidates must be majoring in Mechanical Engineering. Strong academic performance. Candidates must be authorized to work in the US on a full-time indefinite basis without the need for employment visa sponsorship now or in the future. Positions are available in spring, summer, and fall semesters. Availability for multiple work terms is preferred. A valid driver's license is required. Concurrent enrollment in a degree-seeking program. Military experience is a plus. MIN – $32.31 per hour / MAX – $40.89 per hour. Benefits Marathon Petroleum offers a total rewards program which includes, but is not limited to, access to health, vision, and dental insurance, paid time off, 401(k) matching program, paid parental leave, and educational reimbursement. Detailed benefit information is available at the company website. The hired candidate will also be eligible for a discretionary company-sponsored annual bonus program. Location Findlay, Ohio Equal Employment Opportunity Statement Marathon Petroleum Company LP is an Equal Opportunity Employer and gives consideration for employment to qualified applicants without discrimination on the basis of race, color, religion, creed, sex, gender (including pregnancy, childbirth, breastfeeding, or related medical conditions), sexual orientation, gender identity, gender expression, reproductive health decision‑making, age, mental or physical disability, medical condition, or AIDS/HIV status, ancestry, national origin, genetic information, military, veteran status, marital status, citizenship, or any other status protected by applicable federal, state, and local laws. We will consider all qualified applicants for employment, including those with arrest or conviction records, in a manner consistent with the requirements of applicable state and local laws. In reviewing criminal history in connection with a conditional offer of employment, Marathon will consider the key responsibilities of the role. Equal Opportunity Employer: Veteran / Disability. #J-18808-Ljbffr Marathon Petroleum Corporation