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Company Name: Marathon Petroleum Company LP  

Job/Requisition ID: 52411
Driver's License Required: Yes
Employee Group: Intern/Co-op
Employee Subgroup: Hourly Non-Exempt



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: health and safety; environmental stewardship; integrity; corporate citizenship; and diversity and inclusion. Interns and co-ops work side by side with experienced professionals as contributing members of diverse work teams who create value for the company’s shareholders. MPC believes that how we conduct our business is just as important as the bottom line.



As a Chemical 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, Chemical 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.


The majority of Chemical Engineering co-ops and interns enter into the following positions:


Process / Technical Service Engineers may work on a variety of projects in the Technical Services Department together with your mentor that put your classroom experience as a Chemical Engineer into practice.  The vast majority of our Chemical Engineering interns/co-ops work in this area.  The experience will expand your understanding of the refining environment and technical aspects of the refinery. Past projects/duties include: develop and lead test runs to optimize refinery operations; perform process engineering calculations concerning the various process units in the refinery; complete projects and provide recommendations for improvements to the refinery process and equipment.


Operations Research Engineers may help develop planning, blending, scheduling, and process models for refinery engineers. The models are used to optimize crude oil purchasing, refinery production, blending and finished product scheduling, and optimization of refinery production. Typical college co-op assignments include:  validation of production data and mass balancing, process modeling, and development of graphical interfaces of refinery process units.


Environmental Engineers work on projects that involve the compliance of the entire refinery, and you will be exposed to the majority of process units in the refinery.  You will be applying the engineering principles and calculations to various environmental projects and will also give you a broad knowledge of the various environmental laws that are applicable to refineries and what it takes to maintain compliance with those laws. Past projects/duties include: perform process calculations for the Risk Management Plan, including taking physical surveys of refinery process units; work on various process engineering projects within a Wastewater Treatment Plant; participate in inspections and/or testing that is conducted by federal, state, or local officials.


Products Control / Economics Engineers may work on a wide array of projects including operations, blending, and refinery economics. You will gain an understanding of how a tank farm is operated and how gasoline and other products are prepared and shipped to customers. In addition, you will gain some exposure to the overall economics of the refinery and how operating decisions are made based upon these economics. Past projects/duties include: analyze refinery process flow data and compare to recommended optimum levels, this will help in identifying equipment failures which cause variances in capacity from the optimum levels; update information on gasoline blends and tank samples in preparation for an annual blender waiver audit; develop applications to better present process data for refinery operating decisions.



  • Candidates must be majoring in Chemical Engineering
  • Minimum 3.0 cumulative GPA required
  • 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
  • Military experience a plus


We hire for the following locations:

  • Anacortes, WA;Canton, OH; Catlettsburg, KY; Cincinnati, OH; Detroit, MI; Dickinson, ND; El Paso, TX; Findlay, OH; Gallup, NM; Galveston Bay, TX; Garyville, LA; Kenai, AK; Los Angeles, CA; Mandan, ND; Martinez, CA; Robinson, IL; Salt Lake City, UT; St. Paul Park, MN 



About Marathon Petroleum Corporation



Marathon Petroleum Corporation (NYSE: MPC) is a large-scale geographically-diversified and highly -integrated refining, marketing and midstream company. MPC is the nation's largest refiner, with a crude oil refining capacity of more than 3 million barrels per calendar day in its 16-refinery system. MPC's high-quality, nationwide retail and marketing business includes approximately 3,900 company-owned and -operated stores and 7,800 branded locations. MPC owns the general partners of MPLX LP and Andeavor Logistics LP, two strong, customer-focused midstream master limited partnerships.


Job Function: InternCoop

Travel Expected: Up to 25%


If you have visited our site in search of information on U.S. employment opportunities and require an accommodation to submit your application, please contact the MPC EEO/Compliance Office at 866-492-7802. Note that we only accept resumes and applications for posted positions.

Marathon Petroleum Company LP (“MPC”) is an equal employment opportunity employer.  All applicants will be considered without regard to their race, color, religion, sex, age, disability, national origin, sexual orientation, genetic information, gender identity, veteran status or other legally protected status.

Job Segment: Intern, Engineer, Chemical Engineer, Entry Level Engineer, Risk Management, Entry Level, Engineering, Finance

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