Intern/Co-op - Refining Mechanical Engineer Spring 2026

Marathon Petroleum • Catlettsburg, KY

335d • $32 - $40

About The Position

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. 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.

Requirements

• 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 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 a plus.

Responsibilities

• Develop and use project management skills to create project scopes, estimates, and schedules.
• Oversee the design effort and assist in the construction process once a project is developed and approved.
• Support the refinery's Maintenance Department through design and development of equipment related improvements.
• Conduct root cause failure analysis and optimize maintenance programs in rotating equipment.
• Troubleshoot fixed equipment such as refinery pressure vessels, heat exchangers, and piping systems.
• Find new technology in design, materials, and repair methods to achieve refinery goals.

Benefits

• Access to health, vision, and dental insurance.
• Paid time off.
• 401k matching program.
• Paid parental leave.
• Educational reimbursement.
• Discretionary company-sponsored annual bonus program.

What This Job Offers

• Job Type: Full-time
• Career Level: Intern
• Industry: Merchant Wholesalers, Nondurable Goods
• Education Level: High school or GED
• Number of Employees: 5,001-10,000 employees