401(k) · DOL Form 5500 · 2022

Diamondback E & P LLC 401(k) Plan

Data updated 2026-08-25

$167M
Total assets Near avg plan size
897
Participants Near avg headcount
95th
Percentile by assets National rank
$185,895
Avg per participant Above avg balance/head
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Official DOL plan name: Diamondback E & P LLC 401(k) Plan · Sponsored by Diamondback E & P LLC · Oklahoma · Management of Enterprises

$167M in assets, 897 participants

Diamondback E & P LLC's Diamondback E & P LLC 401(k) Plan reported $167M in total assets and 897 participants in its 2022 DOL Form 5500 filing, ranking in the 95th percentile by assets among filed plans. Figures are as reported by the plan sponsor to the Department of Labor, not audited or endorsed by PlainRetire.

  • #993 in Management of Enterprises (1,193 peers)

Where Diamondback E & P LLC 401(k) Plan sits by assets

Diamondback E & P LLC 401(k) Plan sits in the top 5% of all filed plans by assets, $167M for 897 participants (~$185,895/participant), down 16.4% in 2022.

#993
in Management of Enterprises (1,193 peers)
-16.4%
assets change YoY
1.7×
vs typical plan assets (national mean)

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.

Diamondback E & P LLC 401(k) Plan's outsized position by total assets

Diamondback E & P LLC 401(k) Plan vs every filed plan by assets

End-of-year total assets · plan year 2022 · DOL Form 5500

$166,747,782 Top 5% higher than 95% of 139,123 filed plans

This plan $0 $2,050,000,000 every filed plan with reported assets, bucketed by value

Dashed line + filled bar = this entry, among filed plans.

Source U.S. Department of Labor Form 5500 filings (EBSA) · plan year 2022

Diamondback E & P LLC 401(k) Plan among mid-size filed plans by headcount

Plan-year 2022 Form 5500 filings with a reported participant count, partitioned by headcount band, not by assets. Diamondback E & P LLC 401(k) Plan sits mid-pack in the medium band (897 participants).

Form 5500 schedule snapshot

Filing strip 364728559 · Diamondback E & P LLC PY 2022 · 401(k)

Diamondback E & P LLC 401(k) Plan · $167M · 897 · 95th

  • TYPE $167M
  • NET 897
  • BOOK 95th
  • VS-ST 401(k)
  • BOY near Brookshire Brothers Ksop
  • SCH ind #993

Stamps derive from this plan's Form 5500 line items (assets, participants, type, EIN, cohort placement) - not a quality rating of the sponsor. Read with Management of Enterprises retirement plans → · Plans in Oklahoma →

Diamondback E & P LLC 401(k) Plan in the asset neighbourhood

Gp Retirement Savings Plan$167MUnited Refrigeration and Affiliates Retirement and 401(k) PlanUnited Refrigeration and Aff…$167MDiamondback E & P LLC 401(k) PlanDiamondback E & P LLC 401(k)…$167MBrookshire Brothers Ksop$167MAveanna Healthcare 401(k) PlanAveanna Healthcare 401(k) Pl…$167M
End-of-year total assets ($M) among Diamondback E & P LLC 401(k) Plan and nearest nationwide 401(k) peers. Source: DOL Form 5500 plan year 2022.

Scale-class filing particulars (2022)

Total Assets (Beginning of Year)$199M
Net Assets (End of Year)$167M
Net Income-$33M
Employer EIN364728559
Plan Effective Date2007-11-15
Filing StatusFILING RECEIVED

Sponsor Plan History (Diamondback E & P LLC)

Sponsor-wide plan assets over time

All Diamondback E & P LLC plans reported in each filing year

Latest sponsor-wide plan assets
$337M 101.87189476379362% vs 2022
2024 filing year
$100M$200M$300M$400M 202220232024 $167M $337M ▲ +101.9%
Year Plans Participants Total Assets
2022 1 897 $167M
2023 2 2 $187M
2024 3 1,355 $337M

Nearby 401(k) Plans in Oklahoma

Peer 401(k) plans, same state, same plan type, ranked by total assets.

Diamondback E & P LLC 401(k) Plan vs. nearby 401(k) plans in Oklahoma, assets vs. participants Scatter plot of 6 data points. 050001000015000 -101234 Total assets ($B) Participants Diamondback E & P LLC 401(k) Plan, Total assets ($B): 0.166747782 · Participants: 897Diamondback E & P LLC 401(k) PlanQuiktrip Corporation Retirement Plan, Total assets ($B): 3.683382046 · Participants: 10862Quiktrip Corporation Retirement PlanThe Williams Investment Plus Plan, Total assets ($B): 1.385802682 · Participants: 4848The Williams Investment Plus PlanBok Financial 401(k) Plan, Total assets ($B): 0.917245856 · Participants: 4683Bok Financial 401(k) PlanDevon Energy Corporation Incentive Savings Plan, Total assets ($B): 0.791750265 · Participants: 1642Devon Energy Corporation Incentive Savings PlanOne Gas, Inc. 401(k) Plan, Total assets ($B): 0.774155 · Participants: 3586One Gas, Inc. 401(k) Plan
Diamondback E & P LLC 401(k) Plan vs. nearby 401(k) plans in Oklahoma, assets vs. participants
Compare Diamondback E & P LLC 401(k) Plan side-by-side with 3 peers →

Diamondback E & P LLC 401(k) Plan's out-of-state 401(k) peers by assets and headcount

Outside Oklahoma, the nearest 401(k) by assets is Brookshire Brothers Ksop in TX ($167M); by covered participants it is Karsten Manufacturing Corporation and Subsidiaries 401(k) Plan in AZ (897 participants). Same-state nearby plans are listed separately above.

Closest by plan assets

Nearest other-state filings by tot_assets_eoy ($167M here).

Similar participant headcount

Nearest other-state filings by covered participants (897 participants); asset peers above are excluded.

DOL Form 5500 plan year 2022. Asset totals can differ widely at the same headcount; neither axis is a quality rating.

Frequently Asked Questions

How did Diamondback E & P LLC 401(k) Plan assets move in 2022? ▼
Diamondback E & P LLC 401(k) Plan declined sharply - down 16.4% during 2022, from $199M to $167M. Reported net income was -$33M.
How have Diamondback E & P LLC plan assets changed over time? ▼
Across 3 plan years on file (2022-2024), Diamondback E & P LLC's sponsor-wide assets grew 101.9%, from $167M to $337M.
Where does Diamondback E & P LLC 401(k) Plan rank by assets among Form 5500 filers? ▼
Diamondback E & P LLC 401(k) Plan ranks in the 95th percentile by end-of-year assets among 139,126 plans that reported assets for plan year 2022 (in the top 5% of all filed plans by assets).
Which 401(k) plans are similar in size to Diamondback E & P LLC 401(k) Plan? ▼
Among 401(k) plans in other states, the closest by assets is Brookshire Brothers Ksop in TX ($167M, 3,436 participants).
Which 401(k) plans cover a similar participant headcount to Diamondback E & P LLC 401(k) Plan? ▼
Among 401(k) plans in other states, the closest by covered participants is Karsten Manufacturing Corporation and Subsidiaries 401(k) Plan in AZ (897 participants, $224M in assets).

Source: U.S. Department of Labor, Employee Benefits Security Administration (EBSA), Form 5500 public disclosure dataset. Plan year 2022.

Source: DOL EFAST2 filing system (efast.dol.gov) - original filing retrieval by EIN 364728559.

Read our methodology - how this data is sourced, computed, and verified.

Data sourced from U.S. Department of Labor Form 5500 filings (EBSA). See our methodology for details.