The Marathon Petroleum org chart maps the full organizational structure of 384 verified decision makers and leadership team members across 22 functional departments. ExecGraph tracks role changes, new hires, and departures weekly so vendors can reach the right contact at every level of the hierarchy.
Marathon Petroleum operates the Galveston Bay Refinery in Texas City, one of the largest refineries in the United States with capacity exceeding 585,000 barrels per day. ExecGraph maps 332 contacts across 18 departments with particular depth in operations, engineering, and maintenance. The facility is a major turnaround destination with scheduled outages that mobilize hundreds of specialty contractors. Decision chains for vendor engagement typically route through operations or maintenance directors at the plant level, with capital project approvals escalating to VP level at the Findlay, Ohio corporate headquarters.
Marathon Petroleum is a energy and industrial operator with operations across Marathon Galveston Bay Refinery, Marathon Petroleum Houston Office, Galveston Bay Refinery and 1 additional markets. The company maintains a verified contact base of 384+ decision makers across 22 functional areas including procurement, maintenance, operations, engineering, projects, turnaround, HSE, and sustainability. ExecGraph tracks Marathon Petroleum across commercial journeys including MRO, turnarounds, and capital projects.
3 senior executives at Marathon Petroleum at the C-Suite and SVP/EVP level.
Budget holders who approve purchase orders and manage vendor relationships.
Teams responsible for asset uptime, preventive maintenance, and reliability programs.
Plant operators, shift leads, and production managers who run day-to-day operations.
Engineers who write specs, evaluate technology, and approve technical solutions.
Health, safety, and environmental leaders who set site access and compliance standards.
The Marathon Petroleum management team includes 7 senior leaders at the VP level and above, supported by 55 Directors and Managers across 22 functional areas. Key roles include Process Engineer, Process Specialist, Instrument Technician, Process Operator, Maintenance Supervisor.
Marathon Petroleum senior leadership includes 4 executives at the C-Suite and SVP/EVP level, plus 3 VPs across all functions including non-buyer departments visible to subscribers.
View senior leadership directory →Marathon Petroleum is a energy and industrial operator with operations across Marathon Galveston Bay Refinery, Marathon Petroleum Houston Office, Galveston Bay Refinery and 1 additional markets. The company maintains a verified contact base of 384+ decision makers across 22 functional areas including procurement, maintenance, operations, engineering, projects, turnaround, HSE, and sustainability. ExecGraph tracks Marathon Petroleum across commercial journeys including MRO, turnarounds, and capital projects.
Marathon Petroleum has 7 senior leaders tracked by ExecGraph, including 4 C-Suite executives, and 3 VPs. In total, ExecGraph maps 384 decision makers across 22 departments.
ExecGraph does not currently track a dedicated procurement department at Marathon Petroleum. Procurement responsibilities may fall under operations or supply chain. View the full org chart for department-level detail.
Marathon Petroleum is organized into 22 departments including Operations, Maintenance, Engineering, Executive Leadership, Supply Chain. ExecGraph maps the reporting structure across all functional areas to help vendors identify the right contacts.
ExecGraph tracks 384 verified decision makers at Marathon Petroleum across 8 Gulf Coast facilities. Contact data is refreshed weekly to capture role changes and new hires.
The VP of Operations at Marathon Petroleum oversees a team that includes 55 Directors and Managers. ExecGraph maps the full reporting chain from VP down through Director and Manager tiers to help vendors target the right level for their product or service.
ExecGraph tracks sustainability and ESG contacts at Marathon Petroleum as part of its org chart coverage. Energy transition, decarbonization, and emissions reporting roles are mapped when available. View the full org chart for current department coverage.
See who controls budget, who writes specs, and how to reach them. 384 contacts across 22 departments.
Book a 1 hour walkthrough