---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-23-219155"
form_type: "8-K"
ticker: "UTL"
cik: "0000755001"
company_name: "UNITIL CORP"
filed_at: "2023-08-23T23:59:59+00:00"
generated_at: "2026-06-11T05:11:55.258248+00:00"
event_type: "regulatory"
sentiment: "neutral"
materiality_score: 0.6
calibrated_materiality_score: 0.6
confidence: "high"
source: SEC EDGAR
---

# Unitil subsidiary files electric and gas rate cases in Mass., seeking $4.1M electric and $6.8M gas revenue increases

## Summary
- Electric rate case (D.P.U. 23-80) requests increase to address ~$6.8M revenue deficiency, net ~$4.1M after roll-ins.
- Gas rate case (D.P.U. 23-81) requests increase to address ~$10.8M revenue deficiency, net ~$6.8M after GSEP roll-ins.
- Filing includes proposals for Performance Based Ratemaking (PBR) for electric and gas operations.
- Cases subject to comprehensive DPU review over several months; last base rate cases filed in 2019.

## SEC filing metadata
- accession: 0001193125-23-219155
- form_type: 8-K
- ticker: UTL
- cik: 0000755001
- company_name: UNITIL CORP
- filed_at: 2023-08-23T23:59:59+00:00
- event_type: regulatory
- sentiment: neutral
- materiality_score: 0.6
- calibrated_materiality_score: 0.6
- confidence: high
- sec_items: 7.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/755001/000119312523219155/0001193125-23-219155-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/755001/000119312523219155/d525413d8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-23-219155
- JSON: https://secwatch.observer/filing/0001193125-23-219155.json
- Plain text: https://secwatch.observer/filing/0001193125-23-219155.txt

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