2024 plan-year Industry rank #16 of 21 DOL Form 5500

Mining & Oil Extraction Retirement Plans

811 ERISA-covered retirement plans in the Mining & Oil Extraction industry, holding $99.7B for 497,709 participants per 2024 Form 5500 filings.

$99.7B across 811 plans

According to DOL Form 5500 filings (plan year 2024), the Mining & Oil Extraction industry sponsors 811 ERISA-covered retirement plans holding $99.7B for 497,709 participants, ranking #16 of 21 industries by plan assets, with 81.8% structured as 401(k)s.

  • #16 of 21 industries
  • 81.8% 401(k) plans

The industry in one line

Mining & Oil Extraction sponsors 811 ERISA-covered retirement plans holding $99.7B for 497,709 participants, the 16th-largest industry by plan assets.

$99.7B
total plan assets
811
employer plans
$123M
average plan size
81.8%
of plans are 401(k)s
Plans
811
401(k) Plans
663
81.8% of plans
Total Assets
$99.7B
Participants
497,709

What the Mining & Oil Extraction Industry Plan Filings Show

The Mining & Oil Extraction industry sponsors 811 ERISA-covered retirement plans according to 2024 Form 5500 filings, ranking #16 of 21 industries on PlainRetire by total plan assets. Within the industry, 81.8% of plans are 401(k) defined-contribution arrangements (663 plans), with the remainder split across defined-benefit pension plans, profit-sharing arrangements, ESOPs, and money-purchase plans. The average plan in Mining & Oil Extraction holds $123M in end-of-year assets and covers 614 participants.

Industry-level totals reflect aggregate sponsor disclosures on Form 5500 Schedule H and Schedule I and provide a useful frame for benchmarking individual employer plans. They are not a substitute for plan-specific Summary Plan Description review when evaluating any single plan. Industry classification is self-reported by sponsors based on the primary economic activity of the sponsoring employer. Plans whose sponsor industry has changed across years (mergers, restructurings) carry the most-recent classification on file.

Plan Type Breakdown (Mining & Oil Extraction)

Plan Type Plans Participants Total Assets
401(k) 663 406,316 $73.8B
Defined Benefit (Pension) 88 40,159 $19.2B
Profit Sharing 31 37,048 $4.5B
Money Purchase 4 10,057 $1.7B
ESOP 21 3,605 $427M
Other 4 524 $130M

Largest Mining & Oil Extraction Plans by Assets

Top 30 Mining & Oil Extraction retirement plans ranked by 2024 end-of-year total assets.

# Plan Sponsor State Type Participants Assets
1 Conocophillips Savings Plan Conocophillips Company TX 401(k) 6,596 $6.7B
2 Halliburton Retirement and Savings Plan Halliburton Company TX 401(k) 15,306 $4.5B
3 Crh Americas 401(k) Plan Crh Americas, Inc. GA Profit Sharing 35,710 $4.2B
4 Baker Hughes Company 401(k) Plan Baker Hughes Holdings LLC TX 401(k) 12,561 $4.0B
5 United Mine Workers of America 1974 Pension Plan Umwa 1974 Pension Trust Board of Trustees DC Defined Benefit (Pension) 58 $3.8B
6 Occidental Petroleum Corporation Savings Plan Occidental Petroleum Corporation TX 401(k) 8,835 $3.5B
7 Aramco U.S. Savings Plan Aramco Shared Benefits Company TX 401(k) 1,865 $2.9B
8 Energy Transfer LP 401(k) Plan Energy Transfer LP TX 401(k) 12,012 $2.8B
9 Freeport-Mcmoran Inc. Employee Capital Accumulation Program Freeport-Mcmoran Inc. AZ 401(k) 13,770 $2.7B
10 Aramco U.S. Retirement Income Plan Aramco Shared Benefits Company TX Defined Benefit (Pension) 1,552 $1.8B
11 Vulcan 401(k) Plan Vulcan Materials Company AL 401(k) 8,628 $1.5B
12 Conocophillips Retirement Plan Conocophillips Company TX Defined Benefit (Pension) 3,746 $1.4B
13 Barrick Retirement Plan Barrick Gold of North America, Inc. NV 401(k) 7,327 $1.3B
14 Eog Resources, Inc. Savings and Retirement Plan Eog Resources, Inc. TX 401(k) 2,963 $1.3B
15 Occidental Petroleum Corporation Retirement Plan Occidental Petroleum Corporation TX Money Purchase 7,877 $1.3B
16 Martin Marietta Pension Plan Martin Marietta Materials, Inc. NC Defined Benefit (Pension) 8,664 $1.3B
17 Transocean U.S. Retirement Plan Transocean International Limited Defined Benefit (Pension) 923 $1.2B
18 Devon Energy Corporation Incentive Savings Plan Devon Energy Corporation OK 401(k) 1,958 $1.1B
19 Marathon Oil Company Thrift Plan Marathon Oil Company TX 401(k) 1,279 $923M
20 Rio Tinto America Inc. Retirement Plan Rio Tinto America Inc. UT Defined Benefit (Pension) 1,564 $916M
21 Martin Marietta Savings and Investment Plan Martin Marietta Materials, Inc. NC 401(k) 8,807 $903M
22 Peabody Investments Corp. Employee Retirement Account Peabody Investments Corp. MO 401(k) 3,644 $864M
23 Pioneer Natural Resources USA, Inc. 401(k) and Matching Plan Pioneer Natural Resources USA, Inc. TX 401(k) 2,198 $850M
24 The Helmerich & Payne, Inc. 401(k)/Thrift Plan Helmerich & Payne, Inc. OK 401(k) 6,288 $844M
25 Transocean U.S. Savings Plan Transocean International Limited 401(k) 2,151 $839M
26 Hilcorp Energy Company 401(k) Savings Plan Hilcorp Energy Company TX 401(k) 3,657 $818M
27 Totalenergies Finance USA, Inc. Employee Savings Plan Totalenergies Finance USA, Inc TX 401(k) 2,423 $788M
28 Nacco Natural Resources Retirement Savings Plan Nacco Natural Resources Corporation TX 401(k) 1,726 $768M
29 Championx 401(k) Plan Championx LLC TX 401(k) 4,304 $724M
30 Apache Corporation 401(k) Savings Plan Apache Corporation TX 401(k) 1,470 $715M

Nationwide industries with similar retirement plan scale

Two DOL Form 5500-derived peer sets for Mining & Oil Extraction: nearest tracked industries by plan filing count (811 plans here) and nearest by aggregate plan assets ($99.7B here). Rows stay link-disjoint so each axis is a distinct neighborhood.

Similar plan count

Nearest other industries by reported employer plan filings.

Similar total assets

Nearest other industries by aggregate end-of-year plan assets (plan-count peers above are excluded).

Questions about Mining & Oil Extraction plans

How many retirement plans are in the Mining & Oil Extraction industry? ▼
Mining & Oil Extraction sponsors 811 ERISA-covered retirement plans according to 2024 Form 5500 filings, including 663 401(k) plans (81.8% of plans in the industry). Total assets across all plans in the industry sum to $99.7B, covering 497,709 participants.
What's the average plan size in the Mining & Oil Extraction industry? ▼
The average Mining & Oil Extraction retirement plan holds $123M in assets and covers 614 participants. This is an arithmetic mean across all 811 plans in the industry, actual plan sizes vary widely, with a small number of very large plans pulling the average up. See the table above for the largest plans by assets.
Where does this industry data come from? ▼
Industry classification comes from each plan sponsor's Form 5500 filing with the U.S. Department of Labor's Employee Benefits Security Administration (EBSA). Sponsors self-classify into one of approximately 20 industry categories based on the primary economic activity of the sponsoring employer. The category labels follow the DOL plan-sponsor industry taxonomy.
What plan types are most common in the Mining & Oil Extraction industry? ▼
In Mining & Oil Extraction, the most common plan type by total assets is 401(k) (663 plans, $73.8B in assets). Other common types include: Defined Benefit (Pension) (88), Profit Sharing (31), Money Purchase (4).

Related guides

See also these PlainRetire explainers for interpreting Form 5500 industry totals and comparing plans.

Explore from Mining & Oil Extraction

Arts, Entertainment & Recreation

Closest peer by total plan assets ($88.6B, 3,189 plans)
Conocophillips Savings Plan

Largest Mining & Oil Extraction plan on file · $6.7B
401(k)

Dominant type here by assets · 663 plans, $73.8B
All industries

Industry #16 of 21 by total Form 5500 plan assets

What to do with Mining & Oil Extraction plan data

811 plans across the Mining & Oil Extraction sector offer a baseline for benchmarking your own plan.

Industry classification is self-reported by plan sponsors on Form 5500. Plans may span multiple sectors.

Source: U.S. Department of Labor EBSA Form 5500 public-disclosure dataset, 2024 plan year. Industry classification self-reported by sponsors.

Reference: IRS Publication 560, Retirement Plans for Small Business.

Every figure on PlainRetire is rendered directly from the Department of Labor's Form 5500 annual return filings, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of 2026-08-25.