Western Oilfields Supply Company 401(k)/Profit Sharing Plan

Reviewed by PlainRetire Editorial, Retirement Plans Editorial Team · June 16, 2026

ERISA Form 5500 plan record drawn from DOL EBSA — verify with linked source filings below.

Sponsored by Western Oilfields Supply Company · California · Utilities

What the 2023 filing shows

Western Oilfields Supply Company 401(k)/Profit Sharing Plan holds $157M for 1,414 participants — about $110,932 per participant, down 17.2% over the 2022 plan year.

$157M
total plan assets (2022 EOY): 1,414
covered participants: $110,932
avg assets per participant: -17.2%
assets change YoY

The plan reported a net loss of $33M for the year — a single-year figure driven by markets and benefit payments, not a measure of plan health.

Total Assets (2023)

$157M

Participants

1,414

State

California

Industry

Utilities

What the Filing Says About Western Oilfields Supply Company 401(k)/Profit Sharing Plan

Western Oilfields Supply Company 401(k)/Profit Sharing Plan is a 401(k) retirement plan sponsored by Western Oilfields Supply Company, headquartered in California. As of the 2022 Form 5500 filing, the plan reports $157M in total end-of-year assets and covers 1,414 participants across the Utilities industry. The sponsor's EIN on file with the U.S. Department of Labor is 951362750, and the plan has been effective since 1993-01-01. Its filing status is currently FILING RECEIVED.

Year over year, total assets moved from $189M at the beginning of 2022 to $157M at year-end — a decline of 17.2%. Net assets (after liabilities) closed the year at $157M, with reported net income of $-32,595,829 driven by investment returns, contributions received, and benefit payments during the period. These figures reflect what the plan administrator certified on Schedule H or Schedule I of the Form 5500 annual return and can be compared against 2 prior plan-year filings from the same sponsor shown below.

Asset totals and participant counts reflect a single plan year snapshot and can change materially with market conditions, plan mergers, or workforce changes. Fields such as "net income" include both realized investment performance and contribution/distribution flows — a single-year figure does not by itself indicate plan health or participant outcomes. This page summarizes public DOL disclosures for research and educational purposes only and is not retirement, tax, legal, or financial advice. Before making decisions about your own retirement benefits or evaluating an employer's plan, verify the underlying filing directly via the DOL EFAST2 system and consult a qualified professional.

Financial Summary (2023)

Total Assets (Beginning of Year)	$189M
Total Assets (End of Year)	$157M
Net Assets (End of Year)	$157M
Net Income	$-32,595,829
Plan Type	401(k)
Employer EIN	951362750
Plan Effective Date	1993-01-01
Filing Status	FILING RECEIVED

Sponsor Plan History (Western Oilfields Supply Company)

Year	Plans	Participants	Total Assets
2022	1	1,414	$157M
2023	1	1,488	$188M
2024	1	1,516	$216M

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Related Data

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Frequently Asked Questions

How much money is in the Western Oilfields Supply Company 401(k)/Profit Sharing Plan? ▼

As of the 2022 Form 5500 filing, Western Oilfields Supply Company 401(k)/Profit Sharing Plan holds $157M in total assets with 1,414 participants. It is sponsored by Western Oilfields Supply Company.

What type of plan is Western Oilfields Supply Company 401(k)/Profit Sharing Plan? ▼

Western Oilfields Supply Company 401(k)/Profit Sharing Plan is a 401(k) plan. It has been effective since 1993-01-01. The plan is filed with the U.S. Department of Labor under EIN 951362750.

Who sponsors the Western Oilfields Supply Company 401(k)/Profit Sharing Plan? ▼

Western Oilfields Supply Company 401(k)/Profit Sharing Plan is sponsored by Western Oilfields Supply Company, located in California. The sponsor's EIN is 951362750 and the plan operates in the Utilities industry.

How did Western Oilfields Supply Company 401(k)/Profit Sharing Plan perform in 2022? ▼

Western Oilfields Supply Company 401(k)/Profit Sharing Plan declined by 17.2% during 2022, moving from $189M to $157M in total assets. Net income was $-32,595,829.

Where can I find official filings for Western Oilfields Supply Company 401(k)/Profit Sharing Plan? ▼

Official Form 5500 filings for Western Oilfields Supply Company 401(k)/Profit Sharing Plan are available through the U.S. Department of Labor's EFAST2 system. Search by EIN 951362750 or plan name at efast.dol.gov.

How does Western Oilfields Supply Company 401(k)/Profit Sharing Plan compare to other plans? ▼

You can compare Western Oilfields Supply Company 401(k)/Profit Sharing Plan against other 401(k) plans on the plan type page, or view plans in California on the state page. PlainRetire tracks the 5,000 largest retirement plans in the U.S. by total assets.