Intern/Co-op - Refining Mechanical Engineer

    Marathon Petroleum Corporation logo

    Marathon Petroleum Corporation

    We are a leading, integrated, downstream and midstream energy company headquartered in Findlay, Ohio.

    10,001+ employeesFounded 1887Findlay, OhioOil and Gas
    Actively hiringPaidSummer 2027Oil and Gas
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    Best applied by Sep 12

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    About the role#

    As a Refining Mechanical Engineer intern, you will gain hands-on experience within a refinery environment. You will work alongside professionals to understand how engineering disciplines integrate to support refinery operations. This role provides exposure to industry codes and best practices while building your technical and professional presentation skills.

    What you'll do#

    Depending on your assigned team, you will focus on project management or equipment reliability. Project engineers develop project scopes, estimates, and schedules. You will oversee design efforts and assist throughout the construction process. Reliability engineers support the maintenance department by improving equipment performance. This includes performing root cause failure analysis, optimizing maintenance programs for rotating equipment like pumps and compressors, and troubleshooting fixed equipment such as pressure vessels, heat exchangers, and piping systems.

    What you'll need#

    • Current enrollment in a Mechanical Engineering degree program
    • Strong academic performance
    • A valid driver's license
    • Ability to work on-site for the Summer 2027 term

    Location & details#

    This is a full-time, paid internship. Positions are located in Findlay, OH; El Paso, TX; Anacortes, WA; Wilmington, CA; Martinez, CA; Canton, OH; Mandan, ND; Salt Lake City, UT; Robinson, IL; Detroit, MI; St Paul Park, MN; Catlettsburg, KY; Garyville, LA; Texas City, TX; and Kenai, AK.

    Relevant fieldsMechanical Engineering

    About Marathon Petroleum Corporation

    Marathon Petroleum Corporation operates as an integrated energy company focused on downstream and midstream activities. Founded in 1887, the business maintains its headquarters in Findlay, Ohio. It manages the largest refining system in the United States and oversees a network of retail outlets. The company also holds a majority interest in MPLX LP, which handles crude oil and light product transportation infrastructure.

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