401(k) · DOL Form 5500 · 2024

Diamondback E & P LLC 401(k) Plan

Data updated 2026-08-25

$251M
Total assets Near avg plan size
1,340
Participants Near avg headcount
95th
Percentile by assets National rank
$187,125
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

$251M in assets, 1,340 participants

Diamondback E & P LLC's Diamondback E & P LLC 401(k) Plan reported $251M in total assets and 1,340 participants in its 2024 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.

  • #970 in Management of Enterprises (1,133 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, $251M for 1,340 participants (~$187,125/participant), up 18.4% in 2024.

#970
in Management of Enterprises (1,133 peers)
+18.4%
assets growth YoY
2.5×
vs typical plan assets (national mean)

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 2024 · DOL Form 5500

$250,748,021 Top 5% higher than 95% of 123,620 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 2024

Diamondback E & P LLC 401(k) Plan's large-plan peer group by participant headcount

Plan-year 2024 Form 5500 filings with a reported participant count, partitioned by headcount band, not by assets. Diamondback E & P LLC 401(k) Plan lands in the large band (1,340 participants).

What changed between DOL Form 5500 filings

plan year 2023 → plan year 2024

  • Diamondback E & P LLC 401(k) Plan reported participants rose from 1 in the plan year 2023 filing to 1,340 in the plan year 2024 filing.
  • Diamondback E & P LLC 401(k) Plan reported net income rose from $1M in the plan year 2023 filing to $39M in the plan year 2024 filing.
  • Diamondback E & P LLC 401(k) Plan end-of-year assets rose from $93M in the plan year 2023 filing to $251M in the plan year 2024 filing.

See the national 2023→2024 release diff →

Published 5500 schedule card

Filing strip 364728559 · Diamondback E & P LLC PY 2024 · 401(k)

Diamondback E & P LLC 401(k) Plan · $251M · 1,340 · 95th

  • VS-ST $251M
  • VS-ST 1,340
  • VS-ST 95th
  • VS-ST 401(k)
  • VS-ST near Hargrove 401(k) Plan and Trust
  • VS-ST ind #970

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

Musarubra US, LLC 401(k) Plan$251MGrundfos Pumps Corporation 401(k) Profit Sharing PlanGrundfos Pumps Corporation 4…$251MFctg Retirement Savings Plan$251MHargrove 401(k) Plan and TrustHargrove 401(k) Plan and Tru…$251MDiamondback E & P LLC 401(k) PlanDiamondback E & P LLC 401(k)…$251M
End-of-year total assets ($M) among Diamondback E & P LLC 401(k) Plan and nearest nationwide 401(k) peers. Source: DOL Form 5500 plan year 2024.

Scale-class filing particulars (2024)

Total Assets (Beginning of Year)$212M
Net Assets (End of Year)$251M
Net Income$39M
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 0246 Total assets ($B) Participants Diamondback E & P LLC 401(k) Plan, Total assets ($B): 0.250748021 · Participants: 1340Diamondback E & P LLC 401(k) PlanQuiktrip Corporation Retirement Plan, Total assets ($B): 4.827423826 · Participants: 13369Quiktrip Corporation Retirement PlanThe Williams Investment Plus Plan, Total assets ($B): 1.978642425 · Participants: 5204The Williams Investment Plus PlanOneok, Inc. 401(k) Plan, Total assets ($B): 1.415489 · Participants: 4756Oneok, Inc. 401(k) PlanBok Financial 401(k) Plan, Total assets ($B): 1.190240873 · Participants: 4907Bok Financial 401(k) PlanDevon Energy Corporation Incentive Savings Plan, Total assets ($B): 1.073833495 · Participants: 1958Devon Energy Corporation Incentive Savings 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 Hargrove 401(k) Plan and Trust in AL ($251M); by covered participants it is Devs Foods, LLC 401(k) Plan in NJ (1,340 participants). Same-state nearby plans are listed separately above.

Closest by plan assets

Nearest other-state filings by tot_assets_eoy ($251M here).

Similar participant headcount

Nearest other-state filings by covered participants (1,340 participants); asset peers above are excluded.

DOL Form 5500 plan year 2024. 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 2024? ▼
Diamondback E & P LLC 401(k) Plan grew sharply - up 18.4% during 2024, from $212M to $251M. Reported net income was $39M.
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 123,622 plans that reported assets for plan year 2024 (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 Hargrove 401(k) Plan and Trust in AL ($251M, 2,477 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 Devs Foods, LLC 401(k) Plan in NJ (1,340 participants, $814K in assets).

Source: U.S. Department of Labor, Employee Benefits Security Administration (EBSA), Form 5500 public disclosure dataset. Plan year 2024.

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.