401(k) · DOL Form 5500 · 2022

Marathon Oil Company 401(k) Plan

Data updated 2026-08-25

$835M
Total assets Above avg plan size
1,106
Participants Near avg headcount
99th
Percentile by assets National rank
$755,336
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

$835M in assets, 1,106 participants

Marathon Oil Company's Marathon Oil Company Thrift Plan reported $835M in total assets and 1,106 participants in its 2022 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.

  • #873 in Mining & Oil Extraction (892 peers)

Where Marathon Oil Company Thrift Plan sits by assets

Marathon Oil Company Thrift Plan sits among the largest 1% of all filed plans, $835M for 1,106 participants (~$755,336/participant), down 21.1% in 2022.

#873
in Mining & Oil Extraction (892 peers)
-21.1%
assets change YoY
8.4×
vs typical plan assets (national mean)

The plan reported a net loss of $223M for the year, a single-year figure driven by markets and benefit payments, not a measure of plan health.

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 2022 · DOL Form 5500

$835,401,411 Top 1% higher than 99% of 139,123 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 2022

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

Plan-year 2022 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 (1,106 participants).

Plan-year Form 5500 strip

Filing strip 251410539 · Marathon Oil Company PY 2022 · 401(k)

Marathon Oil Company Thrift Plan · $835M · 1,106 · 99th

  • BOOK $835M
  • BOOK 1,106
  • BOOK 99th
  • BOOK 401(k)
  • BOOK near Idexx Retirement and Incentive Savings Plan
  • BOOK ind #873

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

Constellation Brands, Inc. 401(k) and Profit Sharing PlanConstellation Brands, Inc. 4…$837MPost Holdings, Inc. Savings Investment PlanPost Holdings, Inc. Savings …$837MSoutheastern Grocers 401(k) Savings PlanSoutheastern Grocers 401(k) …$837MMarathon Oil Company Thrift PlanMarathon Oil Company Thrift …$835MIdexx Retirement and Incentive Savings PlanIdexx Retirement and Incenti…$834M
End-of-year total assets ($M) among Marathon Oil Company Thrift Plan and nearest nationwide 401(k) peers. Source: DOL Form 5500 plan year 2022.

Scale-class filing particulars (2022)

Total Assets (Beginning of Year)$1.1B
Net Assets (End of Year)$835M
Net Income-$223M
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. -50000050000100000150000200000 -10010203040 Total assets ($B) Participants Marathon Oil Company Thrift Plan, Total assets ($B): 0.835401411 · Participants: 1106Marathon Oil Company Thrift PlanAT&T Retirement Savings Plan, Total assets ($B): 37.578871 · Participants: 144503AT&T Retirement Savings PlanExxonmobil Savings Plan, Total assets ($B): 21.266 · Participants: 23619Exxonmobil Savings PlanCaterpillar 401(k) Savings Plan, Total assets ($B): 13.794958016 · Participants: 38538Caterpillar 401(k) Savings PlanAmerican Airlines, Inc. 401(k) Plan, Total assets ($B): 12.806443202 · Participants: 85577American Airlines, Inc. 401(k) PlanDell Inc. 401(k) Plan, Total assets ($B): 11.969059 · Participants: 47532Dell Inc. 401(k) 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 Idexx Retirement and Incentive Savings Plan in ME ($834M); by covered participants it is Conestoga Wood Employees' 401(k) Plan in PA (1,106 participants). Same-state nearby plans are listed separately above.

Closest by plan assets

Nearest other-state filings by tot_assets_eoy ($835M here).

Similar participant headcount

Nearest other-state filings by covered participants (1,106 participants); asset peers above are excluded.

DOL Form 5500 plan year 2022. 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 2022? ▼
Marathon Oil Company Thrift Plan declined sharply - down 21.1% during 2022, from $1.1B to $835M. Reported net income was -$223M.
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 99th percentile by end-of-year assets among 139,126 plans that reported assets for plan year 2022 (among the largest 1% of all filed plans).
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 Idexx Retirement and Incentive Savings Plan in ME ($834M, 6,436 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 Conestoga Wood Employees' 401(k) Plan in PA (1,106 participants, $76M in assets).

Source: U.S. Department of Labor, Employee Benefits Security Administration (EBSA), Form 5500 public disclosure dataset. Plan year 2022.

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.