Marathon Petroleum operates two Gulf Coast refineries — Galveston Bay in Texas City and Garyville in Louisiana — with combined capacity of approximately 700,000 barrels per day.
The organizational structure at Marathon Petroleum spans 18 functional areas including Operations, Maintenance, Engineering. ExecGraph has mapped 330+ verified contacts across these departments, organized by seniority level and purchasing authority. 7 contacts hold VP level authority or above. The procurement buying center identifies the Senior Role contacts who control vendor selection, specification writing, and budget approval at Marathon Petroleum.
Galveston Bay is one of the largest refineries in the US at 585,000 barrels per day. Garyville in Louisiana processes approximately 256,000 barrels per day with complex configuration.
Marathon is a buyer of turnaround services, inspection and integrity programs, rotating equipment, and process chemicals across both Gulf Coast sites. MPC manages procurement at the corporate level in Findlay, Ohio with site-level operational influence.
Site managers and their reliability, maintenance, and turnaround teams hold primary operational vendor influence. MPC corporate supply chain manages strategic category agreements.
See who controls budget, who writes specs, and how to reach them — with warm path intelligence and career movement signals.
Build a pursuit at Marathon PetroleumExecGraph maps the verified Senior Role contacts, procurement paths, and turnaround decision chain at Marathon Petroleum.
View verified Senior Role contacts in ExecGraphMarathon Petroleum operates two Gulf Coast refineries — Galveston Bay in Texas City and Garyville in Louisiana — with combined capacity of approximately 700,000 barrels per day.
ExecGraph tracks 332+ professionals at Marathon Petroleum across 18 departments including procurement, operations, maintenance, and engineering. 7 are at the VP level or above.
ExecGraph has mapped 332+ verified contacts at Marathon Petroleum, organized across 18 functional areas. Contact records include name, title, department, seniority level, and career history. Data is refreshed weekly.
Marathon Petroleum has operations across 3 Gulf Coast markets including Texas City, Houston, Corpus Christi.
ExecGraph refreshes contact data at Marathon Petroleum weekly. The system tracks role changes, new hires, and departures across all mapped departments. Subscribers receive alerts when key contacts change roles.
ExecGraph maps the decision chain at Marathon Petroleum and 1,300 other Gulf Coast operators. Start a pursuit to see who controls budget, who influences specs, and the fastest path in.