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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.

Posting

The Inventory Controller serves as the site-level inventory planning and material coordination lead for the Mandan Refinery and Dickinson Renewable Fuels Facility. This role translates maintenance, turnaround, project, and operational demand into actions that support safe, reliable, and competitive refinery operations. The Inventory Controller is expected to be a proactive leader who builds trust across Maintenance, Operations, Warehouse, and Supply Chain teams; anticipates material risks before they affect execution; and drives disciplined inventory decisions aligned with equipment criticality, lead time exposure, supplier capability, and site priorities. The successful candidate will be located in Mandan, ND and report to the Supply Chain Director.

This position is responsible for ensuring the right materials are available at the right time while balancing inventory investment, operational reliability, supplier performance, and compliance expectations. The role requires hands-on inventory discipline, strong business judgment, and the ability to influence priorities across functions

• Review and replenish inventory to support maintenance, turnaround, project, and operating needs. Convert planned orders to purchase requisitions, schedule material transfers, and coordinate repairable items for in-house or third-party repair.
• Perform robust, hands-on inventory reviews, including stockouts and at-risk materials, inventory optimization, ABC classifications, forecasted demand, supplier stocking programs such as VMI and consignment, unfulfilled or canceled work order reservations, surplus stock, and obsolete materials.
• Identify, participate in, and lead continuous improvement initiatives that improve inventory accuracy, material availability, replenishment strategy, and working capital performance.
• Support Company audits and Supply Chain compliance control reviews by maintaining disciplined processes, accurate records, and timely follow-up on required actions.
• Establish and maintain close professional relationships with key stakeholders across Maintenance, Operations, Warehouse, Supply Chain, and project teams.
  • Develop a deep, current understanding of stakeholder needs and serve as a primary point of coordination to help Commercial Sourcing Advisors interpret and prioritize those needs.
  • Maintain awareness of Commercial Sourcing Advisor activities and help stakeholders understand status, constraints, risks, and next steps.
  • Serve as a liaison between the Warehouse, Commercial Sourcing Advisors, and site stakeholders to support timely and practical material decisions.
• Use knowledge of stakeholder priorities, inventory conditions, and Supply Chain capabilities to manage and prioritize exception handling.
• Ability to perform Commercial Sourcing Advisor duties for assigned categories, including sourcing strategy development and implementation, RFP/RFQ planning and execution, supplier negotiations, supplier relationship management, quantitative analysis, and purchase order creation and management.
• Support the Warehouse Managers by assisting with daily warehouse operations, material management strategy execution, compliance with legal and Company requirements, budget support, and backfill coverage during absences. This may include oversight of warehouse supervisors and/or warehouse technicians and activities such as goods receipts, goods issues, picks, put-aways, cycle counts, QA/QC, and heavy equipment use.

Expectations

• Demonstrates ownership by following issues through to resolution, communicate risks, constraints, and decisions clearly.
• Build credibility through responsiveness, preparation, sound judgment, and consistent execution.
• Lead through influence by aligning cross-functional stakeholders around material priorities, execution risk, and business value.
• Maintain a continuous improvement mindset and challenges existing practices when opportunities exist to improve reliability, efficiency, or cost performance.
• Model accountability, professionalism, and a service-oriented approach.
• Develops practical solutions and balance urgency with disciplined process compliance.

MINIMUM QUALIFICATIONS:
• High School Diploma or GED equivalent required.​
• Six (6) or more years of Supply Chain or business relevant experience.

As an energy industry leader, our career opportunities fuel personal and professional growth.

Location:

Mandan, North Dakota

Additional locations:

Job Requisition ID:

00022737

Location Address:

900 Old Red Trl NE

Education:

Employee Group:

Full time

Employee Subgroup:

Regular

Marathon Petroleum Company LP is an Equal Opportunity Employer and gives consideration for employment to qualified applicants without discrimination on the basis of race, color, religion, creed, sex, gender (including pregnancy, childbirth, breastfeeding or related medical conditions), sexual orientation, gender identity, gender expression, reproductive health decision-making, age, mental or physical disability, medical condition or AIDS/HIV status, ancestry, national origin, genetic information, military, veteran status, marital status, citizenship or any other status protected by applicable federal, state, or local laws. If you would like more information about your EEO rights as an applicant, click here.

If you need a reasonable accommodation for any part of the application process at Marathon Petroleum LP, please contact our Human Resources Department at talentacquisition@marathonpetroleum.com. Please specify the reasonable accommodation you are requesting, along with the job posting number in which you may be interested. A Human Resources representative will review your request and contact you to discuss a reasonable accommodation. 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.The hired candidate will also be eligible for a discretionary company-sponsored annual bonus program.

Equal Opportunity Employer: Veteran / Disability

We will consider all qualified Applicants for employment, including those with arrest or conviction records, in a manner consistent with the requirements of applicable state and local laws. In reviewing criminal history in connection with a conditional offer of employment, Marathon will consider the key responsibilities of the role.