---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-26-232714"
form_type: "8-K"
ticker: null
cik: "0000110019"
company_name: "NORTHWEST PIPELINE LLC"
filed_at: "2026-05-20T20:33:45+00:00"
generated_at: "2026-05-20T20:47:19.600627+00:00"
event_type: "debt"
sentiment: "neutral"
materiality_score: 0.8
calibrated_materiality_score: 0.8
confidence: "high"
source: SEC EDGAR
---

# Williams Companies enters into $3.75B credit agreement and $1.0B 364-day credit agreement

## Summary
- Williams, Northwest Pipeline, and Transco entered a $3.75B second amended and restated credit agreement with Wells Fargo as admin agent on May 19, 2026.
- Borrowers also entered a $1.0B 364-day credit agreement with Citibank as admin agent on same date.
- The $3.75B facility includes a $500M sublimit for Northwest and Transco each, and allows up to $200M swingline borrowings.
- Credit agreements include financial covenants: debt/EBITDA <=5.00x (or 5.50x post-acquisition) and debt-to-capitalization <=65% for Transco and Northwest.
- Borrowers may request extension of maturity up to two times for the $3.75B facility, extending to seven years.

## SEC filing metadata
- accession: 0001193125-26-232714
- form_type: 8-K
- cik: 0000110019
- company_name: NORTHWEST PIPELINE LLC
- filed_at: 2026-05-20T20:33:45+00:00
- event_type: debt
- sentiment: neutral
- materiality_score: 0.8
- calibrated_materiality_score: 0.8
- confidence: high
- sec_items: 1.01, 2.03, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/110019/000119312526232714/0001193125-26-232714-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/99250/000119312526232714/d227957d8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-26-232714
- JSON: https://secwatch.observer/filing/0001193125-26-232714.json
- Plain text: https://secwatch.observer/filing/0001193125-26-232714.txt

## Key facts
- Material Agreements
  NORTHWEST PIPELINE LLC entered into 364-Day Credit Agreement with Citibank, N.A. valued at up to $1.0 billion (effective 2026-05-19).
  - Action: entry
  - Agreement: credit facility
  - Counterparty: Citibank, N.A.
  - Value: up to $1.0 billion
  - Effective: 2026-05-19
  source text: On the Credit Agreement Effective Date, each of the Borrowers also entered into a 364-Day Credit Agreement (the “364-Day Credit Agreement”) with the lenders named therein and Citibank, N.A. (“Citibank”), as administrative agent.
  evidence_url: https://www.sec.gov/Archives/edgar/data/110019/000119312526232714/0001193125-26-232714-index.htm
- Material Agreements
  NORTHWEST PIPELINE LLC entered into Second Amended and Restated Credit Agreement with Wells Fargo Bank, National Association valued at up to $3.75 billion (effective 2026-05-19).
  - Action: entry
  - Agreement: credit facility
  - Counterparty: Wells Fargo Bank, National Association
  - Value: up to $3.75 billion
  - Effective: 2026-05-19
  source text: On May 19, 2026 (the “Credit Agreement Effective Date”), The Williams Companies, Inc. (the “Company”), Northwest Pipeline LLC (“Northwest”) and Transcontinental Gas Pipe Line Company, LLC (“Transco” and, together with the Company and Northwest, the “Borrowers”) entered into a Second Amended and Restated Credit Agreement (the “Credit Agreement”) with the lenders named therein and Wells Fargo Bank, National Association (“Wells Fargo”), as administrative agent.
  evidence_url: https://www.sec.gov/Archives/edgar/data/110019/000119312526232714/0001193125-26-232714-index.htm

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