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Midstream Commercial Sourcing Advisor

Job in San Antonio, Bexar County, Texas, 78201, USA
Listing for: Marathon Petroleum
Full Time position
Listed on 2026-07-04
Job specializations:
  • Business
    Supply Chain / Intl. Trade, Business Development
Job Description & How to Apply Below

Senior / Lead Commercial Sourcing Advisor

Marathon Petroleum Company LP has an opportunity for a Senior / Lead Commercial Sourcing Advisor! The primary responsibility is to support the development and management of commercial initiatives for the Midstream business unit. This includes helping formalize contracts with various service/material providers and supporting the development and management of commercial initiatives. The individual will minimize risk in supply chain processes to support operating components' service requirements, including recognizing appropriate sourcing strategies, developing awareness of associated operating risks, and qualifying contractors to assure appropriate criteria are adequately addressed.

The successful candidate should be a self-starter, able to conduct market analysis, develop bid packages, analyze proposals using a total cost of ownership methodology, establish strategic business relationships with key suppliers, and validate cost savings. The ideal candidate would be able to thrive in a dynamic environment where needs are both planned and unplanned. The Midstream segment which this role supports primarily includes the MPLX Crude Oil and Product Logistics (COPL) organization 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.

Grade(s) 11-12 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.

The preferred location for this role is La Palma, CA but dependent on candidate skills and capabilities, leadership will consider other West office locations such as San Antonio, TX/Salt Lake City, UT/ Los Angeles, CA/Martinez, CA/ etc.

Responsibilities:

  • 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 regional/local sourcing strategies, decision summaries based on sourcing event and negotiations outcomes.
  • 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.
  • 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.
  • 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.
  • 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. Manages assigned business unit(s) to optimize the supply base and deliver financial benefit. Collaborates with and supports the category management regarding key supplier initiatives.
  • Collaborates with the assigned business unit(s) to assess all requirements and develop sourcing and contracting strategies for goods and services. Supports the development, management, and execution of commercial initiatives and strategies.
  • Facilitates issue resolution related to supplier performance, developing awareness of associated operating risks, and qualifying contractors to assure appropriate criteria are adequately addressed.
  • 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. Facilitates issues resolution related to supplier performance.
  • Utilizes Supply Chain tools, templates and systems, as prescribed by the…
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