---
schema_version: "secwatch.filing_event.v1"
accession: "0000067716-25-000095"
form_type: "8-K"
ticker: "MDU"
cik: "0000067716"
company_name: "MDU RESOURCES GROUP INC"
filed_at: "2025-12-12T23:59:59+00:00"
generated_at: "2026-05-16T13:25:33.486789+00:00"
event_type: "debt"
sentiment: "neutral"
materiality_score: 0.35
confidence: "high"
source: SEC EDGAR
---

# MDU Resources extends revolving credit maturity to Dec 2030; terms largely unchanged

## Summary
- Maturity extended from May 2028 to December 11, 2030 under amended $200M credit facility.
- Outstanding borrowings of $33.85M and $1M in letters of credit as of December 11, 2025.
- Facility includes $25M standby LC subfacility, $25M swingline, and potential $50M accordion.
- Financial covenant limits funded debt to total capitalization to 65%.
- Facility fee currently 0.175% of commitment, interest rate based on debt rating.

## SEC filing metadata
- accession: 0000067716-25-000095
- form_type: 8-K
- ticker: MDU
- cik: 0000067716
- company_name: MDU RESOURCES GROUP INC
- filed_at: 2025-12-12T23:59:59+00:00
- event_type: debt
- sentiment: neutral
- materiality_score: 0.35
- confidence: high
- sec_items: 1.01, 2.03, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/67716/000006771625000095/0000067716-25-000095-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/67716/000006771625000095/mdu-20251211.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0000067716-25-000095
- JSON: https://secwatch.observer/filing/0000067716-25-000095.json
- Plain text: https://secwatch.observer/filing/0000067716-25-000095.txt

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