Intern / Co-op - Accounting (Summer 2026)

An Exciting Career Awaits You

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.

Internship Opportunities

As an intern, you will receive on-the-job training related to the dynamics of the petroleum industry, the specifics of your job assignment, and the use of various software programs. Accounting interns are placed in the following areas :

Accounting Area (Location / Term)

Accounts Payable (San Antonio - Summer Only)

Audit Assurance & Advisory Services (Findlay and San Antonio

• All Terms, Denver and Houston - Summer Only)

Commercial Compliance (San Antonio Summer Only)

General Accounting (Findlay All Terms)

Joint Venture Accounting / Operations Accounting (Denver All Terms) Operations Accounting (Findlay & San Antonio All Terms)

Property Accounting (Findlay All Terms)

Tax Accounting (Findlay All Terms)

Refinery Accounting (Various Refineries - Summer Only)

Specific Duties May Include : Analyzing and processing of business documents; analysis of accounting and financial data in order to prepare proper financial statement journal entries; preparation of general ledger account reconcilements; preparation of tax information; testing SOX and Non-SOX controls in auditing; and assistance in preparing budgets. Additionally, you will be given the opportunity to interface with a variety of departments outside of the Controller's Organization, developing a collaborative relationship with individuals within those departments.

Should you choose a career with Marathon, additional responsibilities will be added as you progress in your career. These include more complex accounting and analysis activities, and the presentation of new ideas and concepts in formal meetings. Creative thought in enhancing existing accounting processes, or in the development of new processes to enhance efficiency, is encouraged. Also, as you progress, you will be given opportunities to work with and mentor less experienced accountants, or perhaps be given the opportunity to perform as the lead analyst in an accounting section.

The Controller's Organization is committed to developing accountants by providing them experience in as many areas of the business as practical. Accountants that demonstrate exceptional proficiency are eligible for opportunities within other areas of the Company, where the analytical skills developed while in the Controller's Organization are highly valued. Accountants often transfer to operational components of the business such as : Refining, Commercial, Logistics & Storage, Pipeline and Gathering & Processing. Additionally, opportunities exist in Tax, Internal Audit, Finance & Treasury, Business Development, and Supply Chain.

Qualifications

Marathon Petroleum offers a total rewards program which includes, but is not limited to, access to health, vision, and dental insurance, paid time off, 401k matching program, paid parental leave, and educational reimbursement. Detailed benefit information is available at https : / / mympcbenefits.com .