Welcome Suppliers

The Supply Chain organization of Marathon Petroleum Company LP (MPC) engages with a range of suppliers and contractors to support our business operations. We aim to ease information exchange and conduct our business in a proactive way to maximize the creation of value with our stakeholders.

We will provide innovative commercial expertise and strategic business solutions that support our business partners and maximize MPC shareholder value.

It is critical to our continued growth that we have reliable, highly capable and trusted suppliers and contractors who share our Core Values and drive for superior results.

We place a high value on the relationships we form with our suppliers. We want to create a mutually beneficial relationship that facilitates a win-win for our respective businesses.

Successful supplier partners typically have the following qualities:
  • High safety and ethical standards
  • Financial viability
  • Competitive and “value added” capabilities
  • An understanding of MPC’s business
  • Quality procedures and processes, ISO, or others appropriate to the industry
  • Technology, cost, or service advantage over other competitors
  • Innovative delivery of goods or services
  • Third-party minority or women-owned orientation certification, if applicable

MPC reserves the right to select suppliers for the procurement process and cannot promise business to any particular supplier. All suppliers are expected to honor MPC’s Code of Business Conduct  and MPC's Supplier Code of Conduct.

 Supplier Diversity

Supplier Diversity is a proactive business initiative that provides potentially underserved business enterprises equal access to opportunities with MPC and Speedway. The goal is to provide diverse business enterprises the opportunity to compete on an equal basis with all other suppliers focusing on developing and strengthening relationships with suppliers that will support our competitive strength into the future.

Supplier Diversity advocates work closely with MPC’s Supply Chain organizations to include diverse business enterprises in the purchasing process. For more information on Marathon Petroleum's Supplier Diversity Program, please visit: MPCSupplierDiversity@marathonpetroleum.com

Supplier Relations FAQs

Where do I send my invoices?

 Invoice addresses and fax numbers vary depending on the type of supplier. Please reach out to either your Supply Chain contact or MPCSupplierRelations@marathonpetroleum.com for more information.

Who do I contact with questions?
Please reach out to MPCSupplierRelations@marathonpetroleum.com with any questions you may have.
How do I update my supplier information?
You have the option of updating your supplier information in Ariba, however if you need to update your supplier record (tax ID, etc.) please reach out to MPCSupplierRelations@marathonpetroleum.com for help.

Diverse Supplier Registration

Contact Information

  • All supplier-related questions or inquiries should be directed to:
  • Businesses that have been classified and certified as small business enterprises or diversity businesses, including those owned and operated by people who are minorities, women, veterans, physically challenged and/or disadvantaged, may email MPCSupplierDiversity@marathonpetroleum.com for assistance or further information.

Certification Requirements

You must be certified as a minority-owned business (MBE), woman-owned business (WBE) or small business enterprise (SBE) by one of the following organizations to continue with the registration process:

  1. An Affiliate of the National Minority Supplier Development Council (NMSDC)
  2. An Affiliate of the Women's Business Enterprise National Council (WBENC)
  3. National Women Business Owners Corporation (NWBOC)
  4. United States Department of Veterans Affairs (VetBiz)
  5. Small Business Administration (SBA)
  6. National LGBT Chamber of Commerce (NGLCC)

Is your business currently certified by one of these organizations?