California › Mining › 100 to 249 participants
Form 5500 statement · plan year 1 Jan 2024 to 31 Dec 2024
Oil Well Service Co. Employees 401(k) Plan
Sponsored by Oil Well Service Co., Signal Hill, CA
Form 5500 information is as filed by the plan administrator with the Department of Labor and may be amended. Figures reflect the plan year shown, not current balances. Form 5500 contains no individual account balances. Look up the original filing at EFAST2.
Oil Well Service Co. Employees 401(k) Plan is a 401(k) plan sponsored by Oil Well Service Co. of Signal Hill, California. For the plan year ending 31 Dec 2024 it reported 124 participants, 78 of them active, and net assets of $4.9M.
Net assets came to $39,445 per participant, well below the $60,185 median for defined contribution plans with 100 to 249 participants and well below the $73,121 median for defined contribution plans in mining. The figure is an average across everyone in the plan, including former employees with small balances; Form 5500 holds no individual account data.
Schedule C lists 1 service provider organisation paid $5,000 or more, with reported compensation of $2,184: $17.61 per participant, well below the same-size median of $194. Administrative expenses charged to the plan were $25K. Schedule C does not capture every cost: fees netted from fund returns and fees the employer pays directly are outside it.
Across the filings on record, net assets went from $4.5M in 2009 to $4.9M in 2024 (up 8%), and participants from 215 to 124 (down 42%).
The independent accountant's opinion on the financial statements was unmodified (unqualified), from an audit whose scope was limited under ERISA section 103(a)(3)(C) to exclude investment information certified by a bank or insurer.
Compared with similar plans
| Measure | This plan | Same size | Same industry | All US DC plans |
|---|---|---|---|---|
| Net assets per participant | $39,445 | $60,185 | $73,121 | $53,102 |
| Employer contributions per active participant | — | $2,447 | $4,223 | $2,175 |
| Schedule C compensation per participant | $17.61 | $194 | $126 | $123 |
| Schedule C compensation, share of net assets | 0.04% | 0.32% | 0.20% | 0.26% |
| Administrative expenses per participant | $206 | $176 | $127 | $116 |
Peer columns are medians for plan year 2024 across defined contribution plans with 100 or more participants: 100 to 249 participants (21,996 plans), mining (483) and all US plans (63,460). Fee medians cover plans that report an amount.
Trend by plan year
| Plan year | Participants | Net assets | Per participant | Employer contributions | Participant contributions | Schedule C compensation |
|---|---|---|---|---|---|---|
| 2024 | 124 | $4.9M | $39,444 | — | $392K | $2,000 |
| 2023 | 135 | $4.8M | $35,548 | — | $427K | $19K |
| 2022 | 133 | $4.9M | $36,940 | $6,000 | $435K | $20K |
| 2021 | 123 | $5.4M | $43,675 | — | $334K | $13K |
| 2020 | 151 | $5.3M | $34,775 | — | $329K | $4,000 |
| 2019 | 159 | $5.9M | $37,270 | — | $383K | $11K |
| 2018 | 158 | $5.3M | $33,285 | — | $268K | $9,000 |
| 2017 | 155 | $5.9M | $38,026 | — | $298K | $17K |
| 2016 | 162 | $6.4M | $39,765 | — | $422K | $28K |
| 2015 | 238 | $7.6M | $31,798 | — | $580K | $24K |
| 2014 | 238 | $8.0M | $33,765 | — | $879K | $28K |
| 2013 | 221 | $7.0M | $31,819 | — | $853K | $8,000 |
| 2012 | 216 | $6.0M | $27,884 | $0 | $782K | $14K |
| 2011 | 208 | $5.1M | $24,399 | $0 | $714K | $13K |
| 2010 | 212 | $5.0M | $23,632 | $0 | $760K | $12K |
| 2009 | 215 | $4.5M | $21,033 | — | $749K | $10K |
Years in which the plan filed the full Form 5500 with 100 or more participants, from 2009. Plan year is the year in which the plan year began.
Statement for the year
- Net assets, beginning of year$4,798,603
- Employer contributions—
- Participant contributions$391,623
- Rollovers and other contributions$42,941
- Total contributions$434,564
- Total income, including investment results$986,855
- Benefits paid$866,259
- Administrative expenses$25,490
- Total expenses$894,250
- Net income$92,605
- Net transfers$0
- Net assets, end of year$4,891,208
Participants
- Active participants78
- Retired or separated, receiving benefits2
- Retired or separated, entitled to future benefits44
- Participants with account balances109
- Total participants, end of year124
Fees and service providers
| Organisation | Services reported | Direct | Indirect |
|---|---|---|---|
| John Hancock USA | Recordkeeping and information management; Investment management | $2,184 | $0 |
Schedule C, Part I line 2: providers that received $5,000 or more, with the form's own service codes. Individuals named on Schedule C (plan employees, individual trustees) are never shown and their compensation is excluded. Eligible indirect compensation disclosed by formula carries no dollar amount. See how to read Schedule C fees.
Administrative expenses on Schedule H
- Contract administrator fees$25,490
- Total administrative expenses$25,490
Investment structure
Assets at year end by Schedule H category. The form shows the kind of vehicle holding the money, not the funds on the menu.
- Common/collective trusts$4.5M · 93.0%
- Participant loans$227K · 4.6%
- Insurance company general account$109K · 2.2%
- Cash (interest and non-interest bearing)$5,560 · 0.1%
Audit and compliance answers, as filed
- Accountant's opinionUnmodified (unqualified)
- Audit scope limited under ERISA section 103(a)(3)(C)Yes
- Accounting firmWindes, Inc.
- Participant contributions reported as transmitted lateNo
- Covered by a fidelity bondYes, $1,000,000
- Blackout period during the yearNo
These are the plan administrator's own answers on Schedule H, Part IV. A reported late transmittal is the filer's disclosure of a timing lapse, usually corrected through the Department of Labor's voluntary program; the amount is the total involved, not a loss.
Plan characteristics
2FERISA section 404(c) plan2GTotal participant-directed account plan2JCode section 401(k) feature2KCode section 401(m) arrangement2S401(k) plan or 403(b) plan that provides for automatic enrollment2TTotal or partial participant-directed account plan with a default investment account3DPre-approved pension plan3HPlan sponsor(s) is (are) a member(s) of a controlled group
Codes entered on Form 5500 line 8a, with the labels from the official instructions. Business code 211120: Crude Petroleum Extraction.
Other plans of Oil Well Service Co.
| Plan | Participants | Net assets |
|---|---|---|
| Oil Well Service Co. Employee Stock Ownership Plan | 237 | $18.9M |
Similar plans in California
| Plan | Sponsor | Participants | Net assets | Per participant |
|---|---|---|---|---|
| Signal Hill Petroleum, Inc. 401(k) Employee Savings Plan | Signal Hill Petroleum, Inc. | 134 | $27.6M | $205,714 |
| Howard Energy Tax Deferred Savings Plan | Howard Energy Co., Inc. | 144 | $10.4M | $72,393 |
| Oil Well Service Co. Employee Stock Ownership Plan | Oil Well Service Co. | 237 | $18.9M | $79,737 |
| P.W. Gillibrand Company Tax-Deferred Savings Plan | P.W. Gillibrand Co., Inc. | 243 | $25.2M | $103,775 |
| Thyssen Mining Inc. 401(k) Plan | Thyssen Mining Inc. | 254 | $11.7M | $46,212 |
| E & B Natural Resources Management Corp. 401(k) Plan | E & B Natural Resources Management Corp. | 319 | $21.3M | $66,724 |
Defined contribution plans in mining closest in size.
Questions and answers
How big is Oil Well Service Co. Employees 401(k) Plan?
124 participants at the end of the plan year ending 31 Dec 2024, of whom 78 were active employees, with net assets of $4,891,208. Among defined contribution plans that places it in the 100 to 249 participants band, which held 21,996 plans in plan year 2024.
What does Oil Well Service Co. contribute per participant?
This filing has no Schedule H financial statement, so employer contributions are not reported here.
What fees does the plan pay and how do they compare?
Schedule C reports $2,184 in compensation to service provider organisations, $17.61 per participant or 0.04% of net assets. The same-size median among plans reporting any Schedule C compensation was $194 per participant. Administrative expenses on Schedule H were $25,490. Investment costs deducted inside mutual funds and other pooled vehicles are not itemised on Form 5500, so these figures are a floor rather than a full cost.
Who runs the plan?
The sponsor is Oil Well Service Co.. Recordkeeping or administration: John Hancock USA. Investment advisory or management: John Hancock USA. The financial statements were audited by Windes, Inc.. Form 5500 also names the plan administrator's signer and other individuals; this site publishes organisations only.
Was the audit opinion unqualified?
The filing reports an unmodified (unqualified) opinion from a limited-scope audit, in which the accountant did not audit investment information certified by a bank or insurance company. Unmodified (formerly "unqualified") is the standard clean opinion.
How current is this, and does it show my balance?
This is the Form 5500 for the plan year 1 Jan 2024 to 31 Dec 2024, received by the Department of Labor on 14 Oct 2025. Filings are due seven months after the plan year ends, or nine and a half with an extension, so the public record always runs a year or more behind. It contains plan-level totals only: no individual balances, contributions or names of participants exist in the data.
Provenance
Source: U.S. Department of Labor, Employee Benefits Security Administration, Form 5500 research files (Form 5500, Schedule H, Schedule C) for plan years 2009 to 2025, public domain, with filings received through 24 Aug 2026. This page shows the latest filing on record for EIN 95-1062955, plan 002, received 14 Oct 2025; an amended filing replaces it at the next build. Medians and percentiles are computed by this site; see the methodology. Report an error through corrections.