401(k) · DOL Form 5500 · 2024

Marathon Oil Company 401(k) Plan

Data updated 2026-08-25

$923M
Total assets Above avg plan size
1,279
Participants Near avg headcount
98th
Percentile by assets National rank
$721,796
Avg per participant High balance/head
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Official DOL plan name: Marathon Oil Company Thrift Plan · Sponsored by Marathon Oil Company · Texas · Mining & Oil Extraction

$923M in assets, 1,279 participants

Marathon Oil Company's Marathon Oil Company Thrift Plan reported $923M in total assets and 1,279 participants in its 2024 DOL Form 5500 filing, ranking in the 98th 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.

  • #767 in Mining & Oil Extraction (785 peers)

Where Marathon Oil Company Thrift Plan sits by assets

Marathon Oil Company Thrift Plan sits in the top 5% of all filed plans by assets, $923M for 1,279 participants (~$721,796/participant), up 4.6% in 2024.

#767
in Mining & Oil Extraction (785 peers)
+4.6%
assets growth YoY
9.3×
vs typical plan assets (national mean)

Marathon Oil Company Thrift Plan's outsized position by total assets

Marathon Oil Company Thrift Plan vs every filed plan by assets

End-of-year total assets · plan year 2024 · DOL Form 5500

$923,176,526 Top 2% higher than 98% of 123,620 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 2024

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

Plan-year 2024 Form 5500 filings with a reported participant count, partitioned by headcount band, not by assets. Marathon Oil Company Thrift Plan lands in the large band (1,279 participants).

What changed between DOL Form 5500 filings

plan year 2023 → plan year 2024

  • Marathon Oil Company Thrift Plan reported net income fell from $47M in the plan year 2023 filing to $40M in the plan year 2024 filing.
  • Marathon Oil Company Thrift Plan reported participants rose from 1,177 in the plan year 2023 filing to 1,279 in the plan year 2024 filing.
  • Marathon Oil Company Thrift Plan end-of-year assets rose from $883M in the plan year 2023 filing to $923M in the plan year 2024 filing.

See the national 2023→2024 release diff →

EBSA filing schedule strip

Filing strip 251410539 · Marathon Oil Company PY 2024 · 401(k)

Marathon Oil Company Thrift Plan · $923M · 1,279 · 98th

  • EBSA $923M
  • EBSA 1,279
  • EBSA 98th
  • EBSA 401(k)
  • EBSA near Komatsu Mining Corp. Retirement Savings Plan
  • EBSA ind #767

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 →

Marathon Oil Company Thrift Plan in the asset neighbourhood

Seyfarth Shaw LLP 401(k) Savings and Retirement PlanSeyfarth Shaw LLP 401(k) Sav…$926MArvest Bank 401(k) & Profit Sharing Retirement PlanArvest Bank 401(k) & Profit …$926MKomatsu Mining Corp. Retirement Savings PlanKomatsu Mining Corp. Retirem…$923MMarathon Oil Company Thrift PlanMarathon Oil Company Thrift …$923MBlackstone 401(k) Savings PlanBlackstone 401(k) Savings Pl…$923M
End-of-year total assets ($M) among Marathon Oil Company Thrift Plan and nearest nationwide 401(k) peers. Source: DOL Form 5500 plan year 2024.

Scale-class filing particulars (2024)

Total Assets (Beginning of Year)$883M
Net Assets (End of Year)$923M
Net Income$40M
Employer EIN251410539
Plan Effective Date1953-11-01
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 401(k) Plans in Texas

Peer 401(k) plans, same state, same plan type, ranked by total assets.

Marathon Oil Company Thrift Plan vs. nearby 401(k) plans in Texas, assets vs. participants Scatter plot of 6 data points. -50000050000100000150000 -1001020304050 Total assets ($B) Participants Marathon Oil Company Thrift Plan, Total assets ($B): 0.923176526 · Participants: 1279Marathon Oil Company Thrift PlanAT&T Retirement Savings Plan, Total assets ($B): 43.121795 · Participants: 109889AT&T Retirement Savings PlanExxonmobil Savings Plan, Total assets ($B): 23.711 · Participants: 21990Exxonmobil Savings PlanChevron Employee Savings Investment Plan, Total assets ($B): 20.378704663 · Participants: 21505Chevron Employee Savings Investment PlanCaterpillar 401(k) Savings Plan, Total assets ($B): 18.81200478 · Participants: 43873Caterpillar 401(k) Savings PlanSouthwest Airlines Co. Retirement Savings Plan, Total assets ($B): 16.991748637 · Participants: 67820Southwest Airlines Co. Retirement Savings Plan
Marathon Oil Company Thrift Plan vs. nearby 401(k) plans in Texas, assets vs. participants
Compare Marathon Oil Company Thrift Plan side-by-side with 3 peers →

Marathon Oil Company Thrift Plan's out-of-state 401(k) peers by assets and headcount

Outside Texas, the nearest 401(k) by assets is Komatsu Mining Corp. Retirement Savings Plan in WI ($923M); by covered participants it is Musculoskeletal Transplant Foundation 401(k) Profit Sharing Plan in NJ (1,279 participants). Same-state nearby plans are listed separately above.

Closest by plan assets

Nearest other-state filings by tot_assets_eoy ($923M here).

Similar participant headcount

Nearest other-state filings by covered participants (1,279 participants); asset peers above are excluded.

DOL Form 5500 plan year 2024. Asset totals can differ widely at the same headcount; neither axis is a quality rating.

Frequently Asked Questions

How did Marathon Oil Company Thrift Plan assets move in 2024? ▼
Marathon Oil Company Thrift Plan edged up modestly - up 4.6% during 2024, from $883M to $923M. Reported net income was $40M.
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 Marathon Oil Company Thrift Plan rank by assets among Form 5500 filers? ▼
Marathon Oil Company Thrift Plan ranks in the 98th percentile by end-of-year assets among 123,622 plans that reported assets for plan year 2024 (in the top 5% of all filed plans by assets).
Which 401(k) plans are similar in size to Marathon Oil Company Thrift Plan? ▼
Among 401(k) plans in other states, the closest by assets is Komatsu Mining Corp. Retirement Savings Plan in WI ($923M, 3,840 participants).
Which 401(k) plans cover a similar participant headcount to Marathon Oil Company Thrift Plan? ▼
Among 401(k) plans in other states, the closest by covered participants is Musculoskeletal Transplant Foundation 401(k) Profit Sharing Plan in NJ (1,279 participants, $240M in assets).

Source: U.S. Department of Labor, Employee Benefits Security Administration (EBSA), Form 5500 public disclosure dataset. Plan year 2024.

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.