---
schema_version: "secwatch.filing_event.v1"
accession: "0000067716-23-000085"
form_type: "8-K"
ticker: "MDU"
cik: "0000067716"
company_name: "MDU RESOURCES GROUP INC"
filed_at: "2023-07-10T23:59:59+00:00"
generated_at: "2026-06-13T10:47:06.858857+00:00"
event_type: "m_and_a"
sentiment: "positive"
materiality_score: 0.8
calibrated_materiality_score: 0.8
confidence: "high"
source: SEC EDGAR
---

# MDU Resources to pursue tax-advantaged separation of Construction Services business

## Summary
- Board decided to separate wholly owned MDU Construction Services Group in a tax-advantaged transaction, aiming to become pure-play regulated energy utility.
- CSG posted record 2022 revenue of $2.7B and record backlog of $2.13B; 2023 guidance: revenue $2.8-3.0B, EBITDA $200-225M.
- Follows June 2023 spinoff of Knife River; MDU plans $2.5B capex in regulated energy over 5 years, rate base growth 6-7% annually.
- MDU attributes growth opportunities to federal Infrastructure Act and U.S. energy transition; will discuss further on Q2 earnings call in August.

## SEC filing metadata
- accession: 0000067716-23-000085
- form_type: 8-K
- ticker: MDU
- cik: 0000067716
- company_name: MDU RESOURCES GROUP INC
- filed_at: 2023-07-10T23:59:59+00:00
- event_type: m_and_a
- sentiment: positive
- materiality_score: 0.8
- calibrated_materiality_score: 0.8
- confidence: high
- sec_items: 7.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/67716/000006771623000085/0000067716-23-000085-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/67716/000006771623000085/mdu-20230710.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0000067716-23-000085
- JSON: https://secwatch.observer/filing/0000067716-23-000085.json
- Plain text: https://secwatch.observer/filing/0000067716-23-000085.txt

This AI-assisted summary is a reading aid. Review the linked SEC EDGAR filing before relying on any specific claim.