---
schema_version: "secwatch.filing_event.v1"
accession: "0000067716-23-000013"
form_type: "8-K"
ticker: "MDU"
cik: "0000067716"
company_name: "MDU RESOURCES GROUP INC"
filed_at: "2023-02-17T23:59:59+00:00"
generated_at: "2026-06-19T08:24:48.203946+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.55
calibrated_materiality_score: 0.55
confidence: "high"
source: SEC EDGAR
---

# MDU Resources names Brian Gray as Knife River CEO; retention deal for CSG head Thiede

## Summary
- David C. Barney to step down as CEO of Knife River effective March 1, 2023; Brian R. Gray succeeds him.
- Barney will serve as non-executive senior advisor through his retirement on January 3, 2024.
- Barney retains current base salary, 2023 target bonus, and receives 2023 annual equity award.
- CSG President & CEO Jeffrey Thiede enters retention agreement tied to strategic review; $1.1M cash bonus upon closing of a transaction.
- Thiede also gets prorated vesting of 2023 equity, prorated annual bonus, and full deferred comp vesting if transaction closes.

## SEC filing metadata
- accession: 0000067716-23-000013
- form_type: 8-K
- ticker: MDU
- cik: 0000067716
- company_name: MDU RESOURCES GROUP INC
- filed_at: 2023-02-17T23:59:59+00:00
- event_type: leadership
- sentiment: neutral
- materiality_score: 0.55
- calibrated_materiality_score: 0.55
- confidence: high
- sec_items: 5.02, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/67716/000006771623000013/0000067716-23-000013-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/67716/000006771623000013/mdu-20230216.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0000067716-23-000013
- JSON: https://secwatch.observer/filing/0000067716-23-000013.json
- Plain text: https://secwatch.observer/filing/0000067716-23-000013.txt

## Key facts
- Executive change
  David C. Barney resigned as Chief Executive Officer of Knife River Corporation at MDU RESOURCES GROUP INC.
  - Action: resigned
  - Role: Chief Executive Officer of Knife River Corporation
  source text: On February 16, 2023, MDU Resources Group, Inc. (the “Company”) announced that David C. Barney will cease serving in his position as Chief Executive Officer of Knife River Corporation (“Knife River”), the Company’s construction materials subsidiary, effective as of March 1, 2023.
  evidence_url: https://www.sec.gov/Archives/edgar/data/67716/000006771623000013/0000067716-23-000013-index.htm
- Executive change
  Brian R. Gray was appointed as Chief Executive Officer of Knife River Corporation at MDU RESOURCES GROUP INC.
  - Action: appointed
  - Role: Chief Executive Officer of Knife River Corporation
  source text: Brian R. Gray, currently President of Knife River, will assume the Chief Executive Officer role at Knife River.
  evidence_url: https://www.sec.gov/Archives/edgar/data/67716/000006771623000013/0000067716-23-000013-index.htm

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