Intern/Co-op - Refining Chemical Engineering Fall 2026

At MPC, we’re committed to being a great place to work – welcoming new ideas, diverse perspectives, developing people, and fostering a collaborative team environment. Responsibilities As a Chemical Engineer at a Marathon refinery, you will become familiar with process equipment fundamentals and best practices, build critical thinking skills, and gain an understanding of how engineering disciplines work together. You will work with professionals who run a specific portion of the refining process and may have opportunities to work on multiple areas, gaining a broad understanding of plant operations. You will also develop written and verbal presentation skills. Typical co‑op and intern positions include: Process / Technical Service Engineers – work on projects in the Technical Services Department; develop and lead test runs to optimize refinery operations; perform process engineering calculations; monitor and make recommendations about catalyst and adsorbents; provide recommendations for process improvements. Operations Research Engineers – develop planning, blending, scheduling, and process models to optimize crude oil purchasing, refinery production, blending, and finished product scheduling; validate production data and mass balancing, process modeling, and develop graphical interfaces. Environmental Engineers – work on compliance projects, apply engineering principles to environmental projects, perform process calculations for the Risk Management Plan, work on wastewater treatment plant projects, and participate in inspections or testing by officials. Products Control / Economics Engineers – work on operations, blending, and refinery economics; analyze process flow data; update gasoline blend information; develop applications to present process data. Qualifications Candidates must be majoring in Chemical Engineering. Strong academic performance. Authorized to work in the US on a full‑time indefinite basis without need for visa sponsorship now or in the future. Positions 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. Pay: MIN $32.92 per hour / MAX $41.60 per hour. Location Findlay, Ohio Compensation Hourly pay range: $32.92 – $41.60 per hour. Benefits Marathon Petroleum offers a total rewards program that includes health, vision, and dental insurance, paid time off, 401(k) matching, paid parental leave, educational reimbursement, and a discretionary company‑sponsored annual bonus program. Detailed benefit information is available at mympcbenefits.com. Equal Opportunity Employment Marathon Petroleum Company LP is an Equal Opportunity Employer and gives consideration 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, or local laws. If you would like more information about your EEO rights as an applicant, click here. If you need a reasonable accommodation for any part of the application process, please contact our Human Resources Department at View email address on click.appcast.io. Marathon offers a total rewards program and may include, but is not limited to, health, vision, and dental insurance, paid time off, 401(k) matching, paid parental leave, educational reimbursement, and a discretionary company‑sponsored annual bonus program. The hired candidate will also be eligible for a discretionary company‑sponsored annual bonus program. 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. #J-18808-Ljbffr