---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-23-169531"
form_type: "8-K"
ticker: "NI"
cik: "0001111711"
company_name: "NISOURCE INC."
filed_at: "2023-06-20T23:59:59+00:00"
generated_at: "2026-06-13T20:35:26.911928+00:00"
event_type: "m_and_a"
sentiment: "positive"
materiality_score: 0.8
calibrated_materiality_score: 0.8
confidence: "high"
source: SEC EDGAR
---

# NiSource sells 19.9% of NIPSCO to Blackstone for $2.15B; reaffirms guidance

## Summary
- Blackstone affiliate to acquire 19.9% non-controlling stake in NIPSCO for $2.150 billion; implies NIPSCO equity value of $10.8B.
- NiSource retains 80.1% controlling interest; expects closing by end of 2023, subject to FERC approval.
- Blackstone commits additional $250M equity to fund pro rata ongoing capital; proceeds to de-lever and fund renewable transition.
- NiSource reaffirms 2023 NOEPS guidance $1.54-$1.60, 6-8% growth through 2027, $15B capex plan 2023-2027.

## SEC filing metadata
- accession: 0001193125-23-169531
- form_type: 8-K
- ticker: NI
- cik: 0001111711
- company_name: NISOURCE INC.
- filed_at: 2023-06-20T23:59:59+00:00
- event_type: m_and_a
- sentiment: positive
- materiality_score: 0.8
- calibrated_materiality_score: 0.8
- confidence: high
- sec_items: 1.01, 7.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1111711/000119312523169531/0001193125-23-169531-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1111711/000119312523169531/d448176d8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-23-169531
- JSON: https://secwatch.observer/filing/0001193125-23-169531.json
- Plain text: https://secwatch.observer/filing/0001193125-23-169531.txt

## Key facts
- Material Agreements
  NISOURCE INC. entered into Purchase Agreement with BIP BLUE BUYER L.L.C. valued at $2.150 billion in cash for 19.9% equity interest (effective 2023-06-17).
  - Action: entry
  - Agreement: equity purchase
  - Counterparty: BIP BLUE BUYER L.L.C.
  - Value: $2.150 billion in cash for 19.9% equity interest
  - Effective: 2023-06-17
  source text: On June 17, 2023, NiSource Inc., a Delaware corporation (“ NiSource ”), along with its wholly-owned subsidiary, NIPSCO Holdings II LLC, a Delaware limited liability company (“ Holdings II ”), entered into a purchase and sale agreement (the “ Purchase Agreement ”) with BIP BLUE BUYER L.L.C., an affiliate of Blackstone Infrastructure Partners, an experienced investor in U.S. infrastructure (the “ Investor ”).
  evidence_url: https://www.sec.gov/Archives/edgar/data/1111711/000119312523169531/0001193125-23-169531-index.htm

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