Intern/Co-op - Accounting (Summer 2026 - Mandan, ND)
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 an energy industry leader, our career opportunities fuel personal and professional growth. Responsibilities: 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 Refinery Accounting (Mandan, ND) 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.
Requirements
- Required Major: Accounting
- 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
- Concurrent enrollment in a Bachelors degree (or higher) seeking program for the duration of the experience
- Must be able to provide reliable transportation to and from place of work
- Availability to work 40 hours per week
Nice To Haves
- Military experience a plus
Responsibilities
- 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
- Assistance in preparing budgets
- Interface with a variety of departments outside of the Controller's Organization, developing a collaborative relationship with individuals within those departments.
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What This Job Offers
Job Type
Full-time
Career Level
Intern
Industry
Merchant Wholesalers, Nondurable Goods
Number of Employees
5,001-10,000 employees
