Employer · plans filed under one EIN
Marathon Petroleum Company LP
Findlay, OH · Manufacturing
Form 5500 information is as filed by the plan administrator with the Department of Labor and may be amended. Figures reflect the plan year shown, not current balances.
3 retirement plans with 100 or more participants file Form 5500 under Marathon Petroleum Company LP's employer identification number (Findlay, Ohio). Their latest filings total 55,771 participant records and $10.7B in net assets.
The largest is Marathon Petroleum Thrift Plan, a 401(k) plan with 28,057 participants. A person can be counted in more than one plan, so the participant total is a count of records rather than of people.
Employer contributions across the plans were $371M and participant contributions $287M in the latest plan years; benefits paid were $897M. Schedule C compensation reported to service provider organisations totalled $5.3M.
Combined net assets moved from $1.11B in 2009 to $10.7B in 2024 (up 859%). Plan mergers and spin-offs show up here as steps in the series.
Plans
| Plan | Kind | Plan year | Participants | Net assets | Per participant | Employer / active | Sch. C compensation |
|---|---|---|---|---|---|---|---|
| Marathon Petroleum Thrift Plan | 401(k) plan | 2024 | 28,057 | $8.33B | $296,722 | $9,840 | $1.8M |
| Marathon Petroleum Retirement Plan | cash balance pension plan | 2024 | 23,452 | $2.21B | $94,083 | $10,573 | $3.2M |
| Speedway Retirement Plan | cash balance pension plan | 2024 | 4,262 | $124M | $29,017 | — | $386K |
| US median, plan year 2024: DC plans $53,102 per participant, $2,175 employer contribution per active participant; DB plans $86,221 and $10,244. | |||||||
Trend by plan year
| Plan year | Plans | Participant records | Net assets | Employer contributions | Participant contributions |
|---|---|---|---|---|---|
| 2024 | 3 | 55,771 | $10.7B | $371M | $287M |
| 2023 | 3 | 57,517 | $9.72B | $92.0M | $277M |
| 2022 | 3 | 58,671 | $8.48B | $258M | $256M |
| 2021 | 3 | 65,053 | $10.2B | $15.0M | $250M |
| 2020 | 3 | 110,028 | $9.97B | $801M | $296M |
| 2019 | 2 | 97,420 | $8.21B | $213M | $284M |
| 2018 | 2 | 65,997 | $4.71B | $306M | $164M |
| 2017 | 2 | 63,229 | $4.98B | $196M | $153M |
| 2016 | 2 | 62,561 | $4.30B | $225M | $146M |
| 2015 | 2 | 25,798 | $3.85B | $174M | $122M |
| 2014 | 2 | 23,720 | $3.69B | $107M | $119M |
| 2013 | 1 | 10,811 | $1.66B | $161M | $0 |
| 2012 | 2 | 17,046 | $3.12B | $199M | $72.8M |
| 2011 | 2 | 17,140 | $2.84B | $402M | $29.6M |
| 2010 | 1 | 8,602 | $1.09B | $0 | $0 |
| 2009 | 1 | 8,580 | $1.11B | $160M | $0 |
History of the plans listed above, in the years each filed the full Form 5500 with 100 or more participants. Plans that have since terminated are not included.
Service providers
| Organisation | Services reported | Plans | Compensation reported |
|---|---|---|---|
| Strategic Advisors, Inc. | Investment advisory (plan) | 1 | $1,657,003 |
| Pacific Investment Management Co. | Investment management | 1 | $1,118,033 |
| MFS International | Investment management | 1 | $891,699 |
| BlackRock | Trustee (bank, trust company, or similar financial institution); Trustee (discretionary); Investment management | 2 | $392,305 |
| Northern Trust Company | Trustee (bank, trust company, or similar financial institution); Trustee (directed) | 2 | $309,419 |
| R.V. Kuhns & Associates | Investment advisory (plan) | 2 | $289,112 |
| Aon Investment Consulting, LLC | Actuarial | 2 | $268,356 |
| BlackRock Financial Management, Inc. | Investment management | 1 | $229,578 |
| Fidelity Investments Institutional | Trustee (directed); Participant loan processing | 1 | $132,139 |
| Hamilton Lane Advisors, LLC | Investment management | 2 | $52,409 |
Organisations paid $5,000 or more by any of these plans, from Schedule C. Individuals are not shown.
Questions and answers
How many retirement plans does Marathon Petroleum Company LP have?
3 plans with 100 or more participants filed Form 5500 under its employer identification number for the latest plan years: Marathon Petroleum Thrift Plan, Marathon Petroleum Retirement Plan and Speedway Retirement Plan. Smaller plans and plans filed under a subsidiary's number are not grouped here.
How much does Marathon Petroleum Company LP contribute to its plans?
$371,274,647 in employer contributions across these plans in their latest plan years, about $10,187 per active participant record. Form 5500 reports totals and not the match or accrual formula.
Who provides services to these plans?
Schedule C filings name Strategic Advisors, Inc., Pacific Investment Management Co., MFS International and BlackRock and others. Only organisations paid $5,000 or more by a plan are listed on Schedule C.
Where does this come from?
Form 5500 annual reports filed with the Department of Labor's EFAST2 system, from the EBSA research files, with filings received through 24 Aug 2026. Figures are as filed and may be amended.
Provenance
Source: U.S. Department of Labor, Employee Benefits Security Administration, Form 5500 research files, public domain, with filings received through 24 Aug 2026. Plans are grouped by the sponsor's employer identification number exactly as filed; a company that files under several EINs appears as several employers. See the methodology and corrections.