• Refining Chemical Engineering Intern/Co-op Summer

    Marathon Petroleum Corporation (Wilmington, CA)
    …midstream company that owns and operates gathering, processing, and fractionation assets, as well as crude oil and light product transportation and logistics ... models for refinery engineers. The models are used to optimize crude oil purchasing, refinery production, blending and finished product scheduling, and optimization… more
    Marathon Petroleum Corporation (11/14/25)
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  • Rotating Equipment Reliability Engineer

    Marathon Petroleum Corporation (Carson, CA)
    …midstream company that owns and operates gathering, processing, and fractionation assets, as well as crude oil and light product transportation and logistics ... reliability improvements. + Develop, submit, and ensure MM/TAR scope is well justified, documented correctly, and meets maintenance specifications and industry best… more
    Marathon Petroleum Corporation (12/23/25)
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  • Intern/Co-op - Midstream Environmental (Spring…

    Marathon Petroleum Corporation (Long Beach, CA)
    …midstream company that owns and operates gathering, processing, and fractionation assets, as well as crude oil and light product transportation and logistics ... steps to prevent recurrences and provides recommendations with appropriate personnel as well as communicating to senior management. + Keeps abreast of environmental… more
    Marathon Petroleum Corporation (11/25/25)
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  • Senor/Lead Human Resources Business Partner

    Marathon Petroleum Corporation (Martinez, CA)
    …midstream company that owns and operates gathering, processing, and fractionation assets, as well as crude oil and light product transportation and logistics ... to build and foster business partner relationships, influence, and bring about change, as well as a strong drive for results. The position is part of a family… more
    Marathon Petroleum Corporation (12/30/25)
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  • Intern/Co-op - Refining Electrical Engineering…

    Marathon Petroleum Corporation (Wilmington, CA)
    …midstream company that owns and operates gathering, processing, and fractionation assets, as well as crude oil and light product transportation and logistics ... coordination issues and run Arc Flash studies for the power system, as well as learning and understanding about how our critical Refinery Safety Instrumented Systems… more
    Marathon Petroleum Corporation (11/24/25)
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  • Intern/Co-Op - Supply Chain (Summer 2026)

    Marathon Petroleum Corporation (Wilmington, CA)
    …midstream company that owns and operates gathering, processing, and fractionation assets, as well as crude oil and light product transportation and logistics ... You will also work to establish and maintain rapport with suppliers as well as MPC's employees and management. Based upon location and organizational assignment,… more
    Marathon Petroleum Corporation (11/06/25)
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  • Intern/Co-op - Safety & Industrial Hygiene (Summer…

    Marathon Petroleum Corporation (Wilmington, CA)
    …midstream company that owns and operates gathering, processing, and fractionation assets, as well as crude oil and light product transportation and logistics ... Overview: Marathon Petroleum Corp. (MPC) offers internship and co-op opportunities to high-performing college students who want meaningful hands-on experiences in their fields of study. The following core values guide MPC's approach to doing business: safety… more
    Marathon Petroleum Corporation (12/19/25)
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  • Intern/Co-op - Human Resources (Summer 2026)

    Marathon Petroleum Corporation (Los Angeles, CA)
    …midstream company that owns and operates gathering, processing, and fractionation assets, as well as crude oil and light product transportation and logistics ... Overview: Marathon Petroleum Corp. (MPC) offers internship opportunities to high-performing college students who want meaningful hands-on experiences in their fields of study. The following core values guide MPC's approach to doing business: Safety and… more
    Marathon Petroleum Corporation (11/27/25)
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  • Intern/co-op - Refining Construction Management…

    Marathon Petroleum Corporation (Wilmington, CA)
    …midstream company that owns and operates gathering, processing, and fractionation assets, as well as crude oil and light product transportation and logistics ... Overview: Depending on experience level and interest, construction management entry level hires at Marathon Petroleum Company LP (MPC) are involved in diverse and challenging projects. Interns/co-ops participate as integral team members, making recommendations… more
    Marathon Petroleum Corporation (11/24/25)
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  • Intern/Co-op - Refining Mechanical Engineer (Fall…

    Marathon Petroleum Corporation (Martinez, CA)
    …midstream company that owns and operates gathering, processing, and fractionation assets, as well as crude oil and light product transportation and logistics ... 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… more
    Marathon Petroleum Corporation (11/24/25)
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