Core Laboratories 401(k) match, vesting and fees
What Core Laboratories' 401(k) plan says about matching contributions
Plan features
Match, vesting and enrollment details have not been published from this plan's audit report yet. The figures below come from the structured filing.
| Recordkeeper | Fidelity Investments Institutional | Schedule C ↗ |
| Independent auditor | Ham, Langston & Brezina LLP (unmodified opinion) | Schedule H ↗ |
| Plan type and status | 401(k) · Active | Form 5500 ↗ |
| Late participant contributions | Reported on the filing | Schedule H ↗ |
How the plan compares
Plan year 2025 medians for 19 defined-contribution plans in mining, quarrying, and oil and gas extraction with 500 to 999 participants.
| Core Laboratories: employer contribution per participant | $2,309 | |
| Peer median | $2,715 |
| Core Laboratories: average balance | $166,722 | |
| Peer median | $107,654 |
| Core Laboratories: admin expenses ÷ assets | 0.05% | |
| Peer median | 0.16% |
Admin expenses are the plan's reported administrative expenses divided by its assets; they do not include fund expense ratios.
Plan history
Plan assets went from $177M at the end of plan year 2021 to $159M at the end of plan year 2025.
| Plan year | Participants | Assets | Employer contributions | Per participant | Admin expense ratio | Match formula | Filing |
|---|---|---|---|---|---|---|---|
| 2025 | 1,116 | $159M | $2.2M | $2,309 | 0.05% | Not published | Form 5500 ↗ |
| 2024 | 1,195 | $157M | $2.3M | $2,363 | 0.05% | Not published | Form 5500 ↗ |
| 2023 | 1,251 | $149M | $2M | $1,966 | 0.04% | Not published | Form 5500 ↗ |
| 2022 | 1,275 | $141M | $829K | $801 | 0.07% | Not published | Form 5500 ↗ |
| 2021 | 1,241 | $177M | $0 | $0 | 0.10% | Not published | Form 5500 ↗ |
Other Core Laboratories plans (1)
Each plan files its own Form 5500. Figures are from each plan's latest filing.
Core Laboratories Profit Sharing and Retirement Plan for Employees in Puerto Rico
Plan features
Match, vesting and enrollment details have not been published from this plan's audit report yet. The figures below come from the structured filing.
| Plan type and status | Profit-sharing · Active | Form 5500 ↗ |
Common questions
Does Core Laboratories match 401(k) contributions?
The match terms for the Core Laboratories Profit Sharing and Retirement Plan have not been published from its filing yet. The plan year 2025 filing reports $2.2M in employer contributions, about $2,309 per participant. That total includes any match and profit-sharing; it is not a match formula.
When is the Core Laboratories 401(k) match vested?
The vesting schedule for the Core Laboratories Profit Sharing and Retirement Plan is not in the data published so far. Your Summary Plan Description states it.
Who manages the Core Laboratories 401(k)?
The recordkeeper listed on Schedule C of the plan year 2025 filing is Fidelity Investments Institutional. The plan administrator is Core Laboratories LP.
I left Core Laboratories. How do I find my old 401(k)?
Your account stays in the plan until you move it. Contact the plan administrator (Core Laboratories LP, (713) 328-2673) or the recordkeeper, Fidelity Investments Institutional. The Core Laboratories old 401(k) page lists the contacts from every plan filing. Find an old Core Laboratories 401(k)
Data from the public Form 5500 annual reports Core Laboratories filed with the U.S. Department of Labor (plan years 2021 and 2022 and 2023 and 2024 and 2025) and, where noted, the attached independent auditor's report. Plan terms may have changed since the filing; check your current Summary Plan Description. PlanFacts is not affiliated with Core Laboratories. Not financial advice. Report a correction · Methodology