Senior Commercial Sourcing Advisor

Company: Marathon Petroleum
Location: Geronimo
Posted on: November 3, 2025

Job Description:

Job Description 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. POSITION SUMMARY: Marathon Petroleum Company LP has an opportunity for a Senior Commercial Sourcing Advisor within SC-Midstream-TRM (Transport, Rail & Marine)! This position will be based out of the San Antonio, TX, or Findlay, OH, office. The Commercial Sourcing Advisor’s primary responsibility is to support the development, management, and execution of strategic contracting initiatives for its Rail Operations. This is done by serving in a commercial advisory role to minimize risk in supply chain processes that support business operations and strategy development. The successful candidate should be a self-starter, have strong contract experience, establish strategic business relationships with key suppliers, and able to work in a dynamic environment where needs are both planned and unplanned. This role supports the Midstream segment within MPLX, MPC’s sponsored master limited partnership. MPLX transports, stores, distributes and markets crude oil and refined products via refining logistics assets, pipelines, terminals, towboats, and barges; gather, process and transport natural gas; and gather, transport, fractionate, store and market natural gas liquids. KEY RESPONSIBILTIES: • Develops contracting strategies to establish and maintain relationships with key suppliers and ensure service, commercial terms, and strategy optimization. Leads the development and implementation of sourcing strategies, decision summaries based on sourcing event and negotiations outcomes. • Leads the preparation and negotiation of terms and conditions related to service and/or supply agreements. Manages related rate sheets and ensures cost competitiveness across vendor categories within the enterprise and across the industry. • Serves in an advisory role to maintain contract compliance and minimize risk in support of key stakeholders and business units. Acts as a liaison between legal and key stakeholders, maintains master agreements, and initiates contract amendments to frame agreements on behalf of supported business unit. Coaches business unit contract owners to drive performance and compliance of contracts. • Fosters communication internally, externally, and between different operational functions. Serves as first line point of contact for concerns related to operating needs, concerns, and Supply Chain support. • Actively seeks and identifies opportunities for value creation (cost savings, cost avoidance, revenue enhancement) and risk reduction. Develops and executes cost savings and strategic sourcing projects while ensuring business continuity and high level of supplier performance. • Collaborates with Rail Operations to assess all requirements and develop contracting strategies. Supports the development, management, and execution of commercial initiatives and strategies. • Develops and maintains relationships with key suppliers to ensure service, commercial terms, and optimal leverage. As needed, develops and tracks KPIs for measuring performance for key suppliers. Facilitate issues resolution related to supplier performance. • Comprehends & interprets commercial, financial, & business data for opportunities and risk. Minimizes risk in Supply Chain processes to support operating components’ service requirements, including recognizing appropriate contracting strategies, developing awareness of associated operating risks, and qualifying contractors to assure appropriate criteria are adequately addressed. OTHER PROFICIENT RESPONSIBILTIES: • Leads bid package process from development through purchase order execution and aligns stakeholder and Supply Chain requirements, scope of work, assumptions and clarifications. Participates in vendor pre-bid meeting and site walks, leading the commercial aspects and setting expectations outlined in the request for proposal. • Runs benchmark studies, gathers and analyzes data, and makes recommendations. Performs root cause analysis related to supply challenges or disruptions. Analyzes and interprets data for use in decision-making and actions in support of business strategy, including total cost of ownership and should cost modeling. • Utilizes Supply Chain tools, templates and systems, as prescribed by the Supply Chain function. Collaborates with Supply Chain peers to drive continuous improvement, alignment, and best-in-class process optimization. • Ensures sourcing activities are properly aligned with the expectations of Supply Chain organizations and stakeholder groups, as applicable, while educating and supporting the deployment of best practices. Experience with SAP, Ariba, Tableau, M365, TRACK MINIMUM QUALIFICATIONS: - Bachelor’s degree required. Supply Chain, Business, or related capabilities field preferred. - Four (4) or more years of Supply Chain or business relevant experience. - Travel up to 20%. - Experience in Contracts Management. - Experience with Rail Operations and/or having a Juris Doctorate (JD) is preferred. SKILLS/COMPETENCIES: Adaptability, Business Acumen, Continuous Improvement Mindset, Contract Negotiations, Critical Thinking, Financial Acumen, Influencing Others, Innovation, Market Research, Project Management, Strategic Planning, Strategic Sourcing, Supply Chain Risk Management, Team Management Grade(s) 10-11. This position is part of a job family with multiple levels. The successful candidate will be placed at a posted level commensurate with experience and qualifications . TACorporate MINIMUM QUALIFICATIONS:/n•/tBachelor’s degree required. /n•/tFour (4) or more years of Supply Chain or business relevant experience. As an energy industry leader, our career opportunities fuel personal and professional growth. Location: San Antonio, Texas Additional locations: Findlay, Ohio Job Requisition ID: 00016167 Location Address: 19100 Ridgewood Pkwy Education: Bachelors (Required) 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.

Keywords: Marathon Petroleum, New Braunfels , Senior Commercial Sourcing Advisor, Engineering , Geronimo, Texas