Menu Search WORKING TOGETHER SUPPLIERS Working with Marathon Oil Shared Values Our Global Supply Chain organization obtains goods and services from outside vendors that align with our Code of Business Conduct, and demonstrate compliance with applicable safety, environmental and transportation laws and regulations. Successful supplier candidates should: Be financially viable Be competitive and have “value added” technical, cost or service advantages Be ethical, with high health, environment, safety and security standards Understand Marathon Oil’s business Follow ISO or others appropriate industry procedures and processes Have timely and accurate electronic invoice submission processes New Inquiries Interested in working with Marathon Oil? Our Global Supply Chain team evaluates all potential suppliers. Contact Us CURRENT SUPPLIERS NEW TO WORKING WITH MRO? Required Supplier Onboarding All new Marathon Oil suppliers are required to complete the Supplier Training Registration Form and associated video: Supplier Training Registration Supplier Training Video SUPPLIER HOTLINE Have questions? We have the answers. Please direct questions regarding your registration or invoice status to the Marathon Oil Supplier Hotline: Phone: 866-323-1836 Email: openinvoicesupport@marathonoil.com From the U.K., dial: 808-234-2552 (BT) or 800-068-9831 (MCL) SUPPLIER RESOURCES Helpful References and Guides PDF Marathon Oil Invoicing Requirements VIDEO How to: Find Approver ID VIDEO How to: Bill Multiple Account Assignments VIDEO How to: Find Purchase Orders and Buyer Site VIDEO How to: Use Product Service Field PDF Quick Reference for Marathon Oil Invoicing PDF B2B Supplier Integration Guidelines PDF Pricebook Collaboration Quick Reference Guide PDF Supplier Collaboration Quick Reference Guide VIDEO PriceBook Collaboration Training PDF Standard Purchase Order Terms & Conditions PDF Invoice Creation against 45 PO’s PDF Invoice Creation against 482 PO’s OUR OPERATIONS Delivering value via four oil-rich U.S. resource plays OUR VALUES We are safe, ethical and responsible A NEW JOURNEY Build your career at Marathon Oil OUR STORIES Get the latest on work we're pursuing at Marathon Oil Operations Eagle Ford Bakken STACK/SCOOP Permian Equatorial Guinea Contractors Suppliers Investors Investors Overview News Releases Events & Presentations Shareholder Services Shareholder FAQ Corporate Governance Owner Relations Royalty Owner Overview Royalty Owner F.A.Q. Log In to Oildex Careers Careers Overview Why Marathon Oil? Early Careers Experienced Professionals Veterans Search Jobs Sustainability Sustainability Home Governance Environment Safety & Workforce Society Metrics About Marathon Oil Our Company Our Communities Our Stories Leadership Board of Directors ©2020 MARATHON OIL COMPANYPRIVACYTERMSFLS DISCLAIMEREMPLOYEE LOGINRETIREES