Marathon Oil Company 401(k) Review & Grade
Marathon Oil Company Thrift Plan
Houston, TXMining, Oil & Gas1,169 active participantsPlan year 2024✓ Auto-enroll
Estimate from the plan's Form 5500 filing · How we grade
$11,153Employer $ per active participant
$18,313Employee $ saved per active participant
0.03%Direct admin cost, % of plan assets
$923.2MNet plan assets, end of year
$397,749Average balance per account
Score breakdown
- Employer generosity42.6 / 5085th percentile for employer $ per participant
- Low cost23.0 / 2592th percentile for low admin cost vs. same-size plans
- Employee saving14.9 / 1599th percentile for employee $ per participant
- Plan features10 / 10Auto-enrollment, Default investment
Total score91 / 100 · Grade A
This plan vs. peers
Peers: Mining, Oil & Gas plans with 500–2,499 active participants (129 plans).
| Measure | Percentile |
|---|---|
| Employer $ per participant | 85th |
| Lower admin cost | 92th |
| Employee saving | 99th |
| Peers that auto-enroll | 60% |
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Red flags from the filing
No red flags were reported on this filing's compliance questions.
What to do if you're in this plan
- Marathon Oil put in about $11,153 per active participant, more than the typical peer ($4,357). Contribute at least enough to collect the full match. Skipping it leaves part of your pay on the table.
- The filing shows total dollars, not the match formula. Ask HR for the Summary Plan Description so you know the exact match and vesting schedule.
- Fund expense ratios aren't in the filing. Look them up in your 404(a)(5) fee disclosure and favor low-cost index or target-date funds.
- The plan auto-enrolls employees. Check your default contribution rate. Defaults are often lower than what it takes to get the full match.
- Changing jobs? You can usually leave the money in the plan, move it to your new employer's plan, or roll it into an IRA. Don't cash out: you'd owe taxes and possibly a 10% penalty.
The raw numbers from the filing
| Employer contributions | $13,037,603 |
| Participant (employee) contributions | $21,408,210 |
| Other contributions (incl. rollovers in) | $2,790,423 |
| Administrative expenses paid from the plan | $307,495 |
| Investment advisory & management fees | $204,402 |
| Benefits paid out | $132,609,561 |
| Net assets, start / end of year | $882.7M / $923.2M |
| Active participants, start / end of year | 1,279 / 1,059 |
| Participants with account balances | 2,321 |
| Auto-enrollment (feature code 2S) | Yes |
| Auditor | Mcconnell & Jones LLP |
| Employer stock held by plan | $9,385,492 |
Largest service providers (Schedule C)
| Strategic Advisors, Inc. | $204,402 reported compensation |
| Fid Inv Inst Ops Co | $103,464 reported compensation |
Source: DOL EFAST2 Form 5500 filing, acknowledgment ID 20250807091051NAL0002100787001, received 2025-08-07, EIN 25-1410539, plan #003, plan year 2024-01-01 to 2024-12-31. Verify at efast.dol.gov.