Defined Benefit (Pension) · DOL Form 5500 · 2023
Marathon Petroleum Company LP Pension Plan
Data updated 2026-08-25
- $2.1B
- Total assets Very large vs avg
- 17,542
- Participants Very large workforce
- 99th
- Percentile by assets National rank
- $117,402
- Avg per participant Below avg balance/head
Official DOL plan name: Marathon Petroleum Retirement Plan · Sponsored by Marathon Petroleum Company LP · Ohio · Manufacturing
$2.1B in assets, 17,542 participants
Marathon Petroleum Company LP's Marathon Petroleum Retirement Plan reported $2.1B in total assets and 17,542 participants in its 2023 DOL Form 5500 filing, ranking in the 99th percentile by assets among filed plans. Figures are as reported by the plan sponsor to the Department of Labor, not audited or endorsed by PlainRetire.
- #18,483 in Manufacturing (18,722 peers)
Coverage in Ohio
Marathon Petroleum Retirement Plan covers 17,542 participants in Ohio, 23x the typical Ohio plan (state average ~765 per filing). Assets: $2.1B.
- #18,483
- in Manufacturing (18,722 peers)
- +5.2%
- assets growth YoY
- 21×
- vs typical plan assets (national mean)
Marathon Petroleum Retirement Plan's outsized position by total assets
Marathon Petroleum Retirement Plan vs every filed plan by assets
End-of-year total assets · plan year 2023 · DOL Form 5500
$2,059,462,508 Top 1% higher than 99% of 127,068 filed plans
Dashed line + filled bar = this entry, among filed plans.
Source U.S. Department of Labor Form 5500 filings (EBSA) · plan year 2023
Marathon Petroleum Retirement Plan's mega-plan peer group by participant headcount
Plan-year 2023 Form 5500 filings with a reported participant count, partitioned by headcount band, not by assets. Marathon Petroleum Retirement Plan is a mega filing (17,542 participants), the rightmost band on the breakdown.
What changed between DOL Form 5500 filings
plan year 2022 → plan year 2023
- Marathon Petroleum Retirement Plan reported net income rose from -$924M in the plan year 2022 filing to $102M in the plan year 2023 filing.
- Marathon Petroleum Retirement Plan end-of-year assets rose from $2.0B in the plan year 2022 filing to $2.1B in the plan year 2023 filing.
- Marathon Petroleum Retirement Plan reported participants rose from 17,390 in the plan year 2022 filing to 17,542 in the plan year 2023 filing.
Published 5500 schedule card
Filing strip 311537655 · Marathon Petroleum Company LP PY 2023 · Defined Benefit (Pension)
Marathon Petroleum Retirement Plan · $2.1B · 17,542 · 99th
- EOY $2.1B
- EOY 17,542
- EOY 99th
- EOY Defined Benefit (Pension)
- EOY near Celanese Americas Retirement Pension Plan
- EOY ind #18483
Stamps derive from this plan's Form 5500 line items (assets, participants, type, EIN, cohort placement) - not a quality rating of the sponsor. Read with Manufacturing retirement plans → · Plans in Ohio →
Marathon Petroleum Retirement Plan in the asset neighbourhood
Ohio filing particulars
| Total Assets (Beginning of Year) | $2.0B |
|---|---|
| Net Assets (End of Year) | $2.1B |
| Net Income | $102M |
| Employer EIN | 311537655 |
| Plan Effective Date | 1998-04-01 |
| Filing Status | FILING RECEIVED |
Sponsor Plan History (Marathon Petroleum Company LP)
Sponsor-wide plan assets over time
All Marathon Petroleum Company LP plans reported in each filing year
- Latest sponsor-wide plan assets
- $10.7B 25.710409990260658% vs 2022
- 2024 filing year
| Year | Plans | Participants | Total Assets |
|---|---|---|---|
| 2022 | 3 | 35,136 | $8.5B |
| 2023 | 3 | 35,428 | $9.7B |
| 2024 | 3 | 36,178 | $10.7B |
Nearby Defined Benefit (Pension) Plans in Ohio
Peer Defined Benefit (Pension) plans, same state, same plan type, ranked by total assets.
- Firstenergy Corp. Master Pension Plan $7.1B · 12,304
- Nationwide Retirement Plan $5.3B · 22,311
- American Electric Power System Retirement Plan $4.5B · 15,595
- Parker Defined Benefit Plan $3.7B · 191
- Ohio Operating Engineers Pension Plan $3.6B · 10,029
Scale composition for Marathon Petroleum Retirement Plan
Marathon Petroleum Retirement Plan reports $2.1B in end-of-year assets across 17,542 participants (0.017% of the $12.3T held by all Form 5500 filers in the national rollup , and 0.019% of 93,925,755 covered participants) - about $117,402 per participant (85% of the national average assets-per-participant) . Net income for plan year 2023 was $102M.
This plan identity (EIN 311537655, plan #001) has 3 Form 5500 filings on file from 2022 to 2024 , with end-of-year assets moving from $2.0B to $2.2B (+12.7%) while covered participants moved from 17,390 to 17,916 . Single-year sparse filers cannot show that trail.
| Plan year | Participants | EOY assets | Filing |
|---|---|---|---|
| 2022 | 17,390 | $2.0B | Open filing |
| 2023 | 17,542 | $2.1B | This page |
| 2024 · index core | 17,916 | $2.2B | Open filing |
The same sponsor also keeps 3 other index-core plans on PlainRetire:
- Marathon Petroleum Thrift Plan (401(k), $8.3B, 18,199 participants)
- Marathon Petroleum Retirement Plan (Defined Benefit (Pension), $2.2B, 17,916 participants)
- Speedway Retirement Plan (Defined Benefit (Pension), $124M, 63 participants)
Marathon Petroleum Retirement Plan's out-of-state Defined Benefit (Pension) peers by assets and headcount
Outside Ohio, the nearest Defined Benefit (Pension) by assets is Celanese Americas Retirement Pension Plan in TX ($2.1B); by covered participants it is Abbott Laboratories Annuity Retirement Plan in IL (17,382 participants). Same-state nearby plans are listed separately above.
Closest by plan assets
Nearest other-state filings by tot_assets_eoy ($2.1B here).
- Celanese Americas Retirement Pension Plan (TX) $2.1B · 1,192
- Yale University Retirement Plan for Staff Employees (CT) $2.0B · 7,596
- Retirement Program Plan for Employees of Consolidated Nuclear Security, LLC at the U.S. Department of Energy at Oak Ridge, Tennessee (TN) $2.1B · 2,710
- Cleveland-Cliffs Steel LLC Pension Plan (IL) $2.1B · 982
Similar participant headcount
Nearest other-state filings by covered participants (17,542 participants); asset peers above are excluded.
- Abbott Laboratories Annuity Retirement Plan (IL) 17,382 · 160 off
- The Citigroup Pension Plan (CT) 17,283 · 259 off
- Yale-New Haven Hospital Cash Account Pension Plan (CT) 17,187 · 355 off
- N. Atlantic States Carp. Pension Fund (MA) 17,166 · 376 off
DOL Form 5500 plan year 2023. Asset totals can differ widely at the same headcount; neither axis is a quality rating.