Defined Benefit (Pension) · DOL Form 5500 · 2023

Midamerican Energy Company Pension Plan

Data updated 2026-08-25

$516M
Total assets Above avg plan size
3,002
Participants Above avg headcount
97th
Percentile by assets National rank
$171,870
Avg per participant Above avg balance/head
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Official DOL plan name: Midamerican Energy Company Retirement Plan · Sponsored by Midamerican Energy Company · Iowa · Utilities

$516M in assets, 3,002 participants

Midamerican Energy Company's Midamerican Energy Company Retirement Plan reported $516M in total assets and 3,002 participants in its 2023 DOL Form 5500 filing, ranking in the 97th 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.

  • #594 in Utilities (721 peers)

Coverage in Iowa

Midamerican Energy Company Retirement Plan covers 3,002 participants in Iowa, 4.9x the typical Iowa plan (state average ~609 per filing). Assets: $516M.

#594
in Utilities (721 peers)
+5.3%
assets growth YoY
5.2×
vs typical plan assets (national mean)

Midamerican Energy Company Retirement Plan's outsized position by total assets

Midamerican Energy Company Retirement Plan vs every filed plan by assets

End-of-year total assets · plan year 2023 · DOL Form 5500

$515,952,654 Top 3% higher than 97% of 127,068 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 2023

Midamerican Energy Company Retirement Plan's large-plan peer group by participant headcount

Plan-year 2023 Form 5500 filings with a reported participant count, partitioned by headcount band, not by assets. Midamerican Energy Company Retirement Plan lands in the large band (3,002 participants).

What changed between DOL Form 5500 filings

plan year 2022 → plan year 2023

  • Midamerican Energy Company Retirement Plan reported net income rose from -$213M in the plan year 2022 filing to $26M in the plan year 2023 filing.
  • Midamerican Energy Company Retirement Plan reported participants fell from 3,321 in the plan year 2022 filing to 3,002 in the plan year 2023 filing.
  • Midamerican Energy Company Retirement Plan end-of-year assets rose from $490M in the plan year 2022 filing to $516M in the plan year 2023 filing.

See the national 2022→2023 release diff →

Plan-year Form 5500 strip

Filing strip 421425214 · Midamerican Energy Company PY 2023 · Defined Benefit (Pension)

Midamerican Energy Company Retirement Plan · $516M · 3,002 · 97th

  • BOOK $516M
  • VS-ST 3,002
  • BOY 97th
  • SCH Defined Benefit (Pension)
  • EBSA near Alaska Teamster-Employer Pension Trust
  • PART ind #594

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 Utilities retirement plans → · Plans in Iowa →

Midamerican Energy Company Retirement Plan in the asset neighbourhood

Ericsson US Pension Plan$516MAlaska Teamster-Employer Pension TrustAlaska Teamster-Employer Pen…$516MMidamerican Energy Company Retirement PlanMidamerican Energy Company R…$516MLifespan Corporation Retirement PlanLifespan Corporation Retirem…$515MElevance Health Cash Balance Plan BElevance Health Cash Balance…$515M
End-of-year total assets ($M) among Midamerican Energy Company Retirement Plan and nearest nationwide Defined Benefit (Pension) peers. Source: DOL Form 5500 plan year 2023.

Iowa filing particulars

Total Assets (Beginning of Year)$490M
Net Assets (End of Year)$516M
Net Income$26M
Employer EIN421425214
Plan Effective Date1980-01-01
Filing StatusFILING RECEIVED

Sponsor Plan History (Midamerican Energy Company)

Sponsor-wide plan assets over time

All Midamerican Energy Company plans reported in each filing year

Latest sponsor-wide plan assets
$12.0B 575.5536742641146% vs 2022
2024 filing year
$0B$5B$10B$15B 202220232024 $1.78B $12B ▲ +574.2%
Year Plans Participants Total Assets
2022 2 8,307 $1.8B
2023 2 8,058 $2.2B
2024 10 49,803 $12.0B

Nearby Defined Benefit (Pension) Plans in Iowa

Peer Defined Benefit (Pension) plans, same state, same plan type, ranked by total assets.

Midamerican Energy Company Retirement Plan vs. nearby Defined Benefit (Pension) plans in Iowa, assets vs. participants Scatter plot of 6 data points. 050001000015000 00.511.522.5 Total assets ($B) Participants Midamerican Energy Company Retirement Plan, Total assets ($B): 0.515952654 · Participants: 3002Midamerican Energy Company Retirement PlanTransamerica Pension Plan, Total assets ($B): 2.323730661 · Participants: 6519Transamerica Pension PlanPrincipal Cash Balance Plan, Total assets ($B): 1.699129128 · Participants: 12492Principal Cash Balance PlanEmployers Mutual Casualty Company Retirement Plan, Total assets ($B): 0.346674752 · Participants: 1835Employers Mutual Casualty Company Retirement PlanNon-Contributory Retirement Program for Certain Employees of Wellmark, Inc., Total assets ($B): 0.297274074 · Participants: 1474Non-Contributory Retirement Program for Certain Employees of Wellmark, Inc.Pension Plan of the Plumbers and Steamfitters Local Union No. 33 Retirement Trust, Total assets ($B): 0.293488214 · Participants: 1164Pension Plan of the Plumbers and Steamfitters Local Union No. 33 Retirement Trust
Midamerican Energy Company Retirement Plan vs. nearby Defined Benefit (Pension) plans in Iowa, assets vs. participants
Compare Midamerican Energy Company Retirement Plan side-by-side with 3 peers →

Midamerican Energy Company Retirement Plan's out-of-state Defined Benefit (Pension) peers by assets and headcount

Outside Iowa, the nearest Defined Benefit (Pension) by assets is Alaska Teamster-Employer Pension Trust in AK ($516M); by covered participants it is Plumbers' Pension Fund, Local 130, U.a. in IL (3,000 participants). Same-state nearby plans are listed separately above.

Closest by plan assets

Nearest other-state filings by tot_assets_eoy ($516M here).

Similar participant headcount

Nearest other-state filings by covered participants (3,002 participants); asset peers above are excluded.

DOL Form 5500 plan year 2023. Asset totals can differ widely at the same headcount; neither axis is a quality rating.

Frequently Asked Questions

How did Midamerican Energy Company Retirement Plan assets move in 2023? ▼
Midamerican Energy Company Retirement Plan grew at a solid clip - up 5.3% during 2023, from $490M to $516M. Reported net income was $26M.
How have Midamerican Energy Company plan assets changed over time? ▼
Across 3 plan years on file (2022-2024), Midamerican Energy Company's sponsor-wide assets grew 575.6%, from $1.8B to $12.0B.
Where does Midamerican Energy Company Retirement Plan rank by assets among Form 5500 filers? ▼
Midamerican Energy Company Retirement Plan ranks in the 97th percentile by end-of-year assets among 127,072 plans that reported assets for plan year 2023 (in the top 5% of all filed plans by assets).
Which Defined Benefit (Pension) plans are similar in size to Midamerican Energy Company Retirement Plan? ▼
Among Defined Benefit (Pension) plans in other states, the closest by assets is Alaska Teamster-Employer Pension Trust in AK ($516M, 3,436 participants).
Which Defined Benefit (Pension) plans cover a similar participant headcount to Midamerican Energy Company Retirement Plan? ▼
Among Defined Benefit (Pension) plans in other states, the closest by covered participants is Plumbers' Pension Fund, Local 130, U.a. in IL (3,000 participants, $1.6B in assets).

Source: U.S. Department of Labor, Employee Benefits Security Administration (EBSA), Form 5500 public disclosure dataset. Plan year 2023.

Source: DOL EFAST2 filing system (efast.dol.gov) - original filing retrieval by EIN 421425214.

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.