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Marathon Petroleum Company LP

12 cases in this site's copy of the record · 2 of those 12 are marked open by the Board · Region 07, 08, 16, 19, 28, 32 · Anacortes, WA; Canton, OH; Detroit, MI; El Paso, TX; Martinez, CA; Texas City, TX

Each case links to the Board's own docket page. This site holds what the Board listed, not the documents.

What kinds of case

Type	What it is	Here
CA	Charge against an employer	9
RC	Petition for an election	2
UC	Petition to clarify a unit	1

The cases

Charge against an employer
CA
Filed 24 April 2026Case 32-CA-385797OpenMartinez, CARegion 32Workers in the unit 50
Marathon Petroleum Company, LP
CA
Filed 20 November 2024Case 16-CA-355273ClosedTexas City, TXRegion 16Workers in the unit 500
Charge against an employer
CA
Filed 9 October 2024Case 08-CA-352334OpenCanton, OHRegion 08Workers in the unit 5,000
Petition for an election
RC
Filed 20 May 2024Case 19-RC-342590ClosedAnacortes, WARegion 19Workers in the unit 15
Included: All full-time and regular part-time GC Technicians, Lab 3 Technicians, Motor Lab Technicians, Rover Technicians, and Rotational Technicians. Excluded: Excluding all other employees, including office clerical employees, Chemists, managerial employees, guards and supervisors as defined by the Act.
Marathon Petroleum Company, LP
CA
Filed 8 November 2023Case 16-CA-330059ClosedTexas City, TXRegion 16Workers in the unit 500
Marathon Petroleum Company, LP
CA
Filed 8 November 2023Case 16-CA-330036ClosedTexas City, TXRegion 16Workers in the unit 500
Marathon Petroleum Company, LP
CA
Filed 8 November 2023Case 16-CA-330028ClosedTexas City, TXRegion 16Workers in the unit 500
Petition to clarify a unit
UC
Filed 13 April 2022Case 19-UC-293923ClosedAnacortes, WARegion 19Workers in the unit 213
Present Unit:Included: All maintenance and operating employees at the Company's Anacortes, WA plant. Excluded: Admin and professional employees, office and field clerical, supervisors, guards, fire and safety, lab personnel. Proposed Unit: Included: All maintenance and operating employees at the Company's Anacortes, WA plant. Excluded: Admin and professional employees, office and field clerical, supervisors, guards, ...
Petition for an election
RC
Filed 14 July 2020Case 19-RC-263061ClosedAnacortes, WARegion 19Workers in the unit 13
Included: All Lab Technicians working in the Marathon Anacortes Facility. Excluded: All salaried, Management Personnel, and Supervisors as defined under the Act.
Marathon Petroleum Company, LP
CA
Filed 7 April 2020Case 28-CA-258918ClosedEl Paso, TXRegion 28Workers in the unit 278
MARATHON PETROLEUM COMPANY, LP
CA
Filed 7 December 2015Case 16-CA-165647ClosedTexas City, TXRegion 16Workers in the unit 148
Marathon Petroleum Company, LP
CA
Filed 3 December 2012Case 07-CA-094072ClosedDetroit, MIRegion 07Workers in the unit 500

Last refreshed 19 September 2026. What is in it, and what is not.

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