Defined Benefit (Pension) · DOL Form 5500 · 2023

Marathon Oil Company Pension Plan

Data updated 2026-08-25

$195M
Total assets Near avg plan size
1,170
Participants Near avg headcount
95th
Percentile by assets National rank
$166,586
Avg per participant Above avg balance/head
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Official DOL plan name: Retirement Plan of Marathon Oil Company · Sponsored by Marathon Oil Company · Texas · Mining & Oil Extraction

$195M in assets, 1,170 participants

Marathon Oil Company's Retirement Plan of Marathon Oil Company reported $195M in total assets and 1,170 participants in its 2023 DOL Form 5500 filing, ranking in the 95th 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.

  • #723 in Mining & Oil Extraction (811 peers)

Where Retirement Plan of Marathon Oil Company sits by assets

Retirement Plan of Marathon Oil Company sits in the top 5% of all filed plans by assets, $195M for 1,170 participants (~$166,586/participant), up 12.6% in 2023.

#723
in Mining & Oil Extraction (811 peers)
+12.6%
assets growth YoY
2.0×
vs typical plan assets (national mean)

Retirement Plan of Marathon Oil Company's outsized position by total assets

Retirement Plan of Marathon Oil Company vs every filed plan by assets

End-of-year total assets · plan year 2023 · DOL Form 5500

$194,905,153 Top 5% higher than 95% of 127,068 filed plans

This plan $0 $2,050,000,000 every filed plan with reported assets, bucketed by value

Dashed line + filled bar = this entry, among filed plans.

Source U.S. Department of Labor Form 5500 filings (EBSA) · plan year 2023

Retirement Plan of Marathon Oil Company's large-plan peer group by participant headcount

Plan-year 2023 Form 5500 filings with a reported participant count, partitioned by headcount band, not by assets. Retirement Plan of Marathon Oil Company lands in the large band (1,170 participants).

What changed between DOL Form 5500 filings

plan year 2022 → plan year 2023

  • Retirement Plan of Marathon Oil Company reported net income rose from -$33M in the plan year 2022 filing to $23M in the plan year 2023 filing.
  • Retirement Plan of Marathon Oil Company end-of-year assets rose from $173M in the plan year 2022 filing to $195M in the plan year 2023 filing.
  • Retirement Plan of Marathon Oil Company reported participants rose from 1,103 in the plan year 2022 filing to 1,170 in the plan year 2023 filing.

See the national 2022→2023 release diff →

EBSA filing schedule strip

Filing strip 251410539 · Marathon Oil Company PY 2023 · Defined Benefit (Pension)

Retirement Plan of Marathon Oil Company · $195M · 1,170 · 95th

  • 5500 $195M
  • ASSETS 1,170
  • PCT 95th
  • EIN Defined Benefit (Pension)
  • RANK near Donnelley Financial Pension Plan
  • PHOTO ind #723

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 Mining & Oil Extraction retirement plans → · Plans in Texas →

Retirement Plan of Marathon Oil Company in the asset neighbourhood

Sylvamo Pension Plan$195MRetirement Allowance Plan of the University of PennsylvaniaRetirement Allowance Plan of…$195MRetirement Plan of Marathon Oil CompanyRetirement Plan of Marathon …$195MDonnelley Financial Pension PlanDonnelley Financial Pension …$195MAlaska Plumbing and Pipefitting Industry Pension PlanAlaska Plumbing and Pipefitt…$195M
End-of-year total assets ($M) among Retirement Plan of Marathon Oil Company and nearest nationwide Defined Benefit (Pension) peers. Source: DOL Form 5500 plan year 2023.

Scale-class filing particulars (2023)

Total Assets (Beginning of Year)$173M
Net Assets (End of Year)$194M
Net Income$23M
Employer EIN251410539
Plan Effective Date1936-01-01
Filing StatusFILING RECEIVED

Sponsor Plan History (Marathon Oil Company)

Sponsor-wide plan assets over time

All Marathon Oil Company plans reported in each filing year

Latest sponsor-wide plan assets
$1.2B 15.45082939902673% vs 2022
2024 filing year
$0.95B$1B$1.05B$1.1B$1.15B$1.2B 202220232024 $1.01B $1.16B ▲ +14.9%
Year Plans Participants Total Assets
2022 2 2,209 $1.0B
2023 2 2,347 $1.1B
2024 2 2,552 $1.2B

Nearby Defined Benefit (Pension) Plans in Texas

Peer Defined Benefit (Pension) plans, same state, same plan type, ranked by total assets.

Retirement Plan of Marathon Oil Company vs. nearby Defined Benefit (Pension) plans in Texas, assets vs. participants Scatter plot of 6 data points. -50000050000100000150000 -10010203040 Total assets ($B) Participants Retirement Plan of Marathon Oil Company, Total assets ($B): 0.194905153 · Participants: 1170Retirement Plan of Marathon Oil CompanyAT&T Pension Benefit Plan, Total assets ($B): 30.018512 · Participants: 107859AT&T Pension Benefit PlanShell Pension Plan, Total assets ($B): 15.133347097 · Participants: 12215Shell Pension PlanExxonmobil Pension Plan, Total assets ($B): 12.015 · Participants: 22551Exxonmobil Pension PlanCaterpillar Inc. Retirement Income Plan, Total assets ($B): 9.803014695 · Participants: 12138Caterpillar Inc. Retirement Income PlanBp Retirement Accumulation Plan, Total assets ($B): 5.493677099 · Participants: 9360Bp Retirement Accumulation Plan
Retirement Plan of Marathon Oil Company vs. nearby Defined Benefit (Pension) plans in Texas, assets vs. participants
Compare Retirement Plan of Marathon Oil Company side-by-side with 3 peers →

Retirement Plan of Marathon Oil Company's out-of-state Defined Benefit (Pension) peers by assets and headcount

Outside Texas, the nearest Defined Benefit (Pension) by assets is Donnelley Financial Pension Plan in IL ($195M); by covered participants it is The Hospital for Special Surgery Retirement Plan in NY (1,169 participants). Same-state nearby plans are listed separately above.

Closest by plan assets

Nearest other-state filings by tot_assets_eoy ($195M here).

Similar participant headcount

Nearest other-state filings by covered participants (1,170 participants); asset peers above are excluded.

DOL Form 5500 plan year 2023. Asset totals can differ widely at the same headcount; neither axis is a quality rating.

Frequently Asked Questions

How did Retirement Plan of Marathon Oil Company assets move in 2023? ▼
Retirement Plan of Marathon Oil Company grew at a solid clip - up 12.6% during 2023, from $173M to $195M. Reported net income was $23M.
How have Marathon Oil Company plan assets changed over time? ▼
Across 3 plan years on file (2022-2024), Marathon Oil Company's sponsor-wide assets grew 15.5%, from $1.0B to $1.2B.
Where does Retirement Plan of Marathon Oil Company rank by assets among Form 5500 filers? ▼
Retirement Plan of Marathon Oil Company ranks in the 95th percentile by end-of-year assets among 127,072 plans that reported assets for plan year 2023 (in the top 5% of all filed plans by assets).
Which Defined Benefit (Pension) plans are similar in size to Retirement Plan of Marathon Oil Company? ▼
Among Defined Benefit (Pension) plans in other states, the closest by assets is Donnelley Financial Pension Plan in IL ($195M, 647 participants).
Which Defined Benefit (Pension) plans cover a similar participant headcount to Retirement Plan of Marathon Oil Company? ▼
Among Defined Benefit (Pension) plans in other states, the closest by covered participants is The Hospital for Special Surgery Retirement Plan in NY (1,169 participants, $400M in assets).

Source: U.S. Department of Labor, Employee Benefits Security Administration (EBSA), Form 5500 public disclosure dataset. Plan year 2023.

Source: DOL EFAST2 filing system (efast.dol.gov) - original filing retrieval by EIN 251410539.

Read our methodology - how this data is sourced, computed, and verified.

Data sourced from U.S. Department of Labor Form 5500 filings (EBSA). See our methodology for details.