Exchange
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Entity type
operating
Fiscal year end
Dec 31
Headquarters
Company overview
Northwest Pipeline LLC is a specialized midstream operator whose core services revolve around the transportation and storage of natural gas for industrial and utility customers across its regional network; while the precise SIC code remains unspecified, the company sits squarely in the energy pipeline sector where shared standards and compliance regimes expect operators to balance system reliability with fluctuating supply and demand dynamics. Targeting investor-owned utilities, large industrial users, and gas marketers that rely on predictable capacity, Northwest Pipeline emphasizes infrastructure uptime, safety, and regulatory compliance to meet the demands of an essential commodity. Key material risks stem from federal and state pipeline safety regulations, environmental permitting challenges, and market shifts in natural gas consumption driven by economic conditions or emissions policy, all of which can affect throughput and revenue. Latest filings are not publicly listed at this time, and the company continues to monitor the regulatory environment while providing transportation services; view live SEC filings on Earnings Feed to stay current.
Source: Earnings Feed research · last updated 11/24/2025
Recent filings
- NORTHWEST PIPELINE CORP52.2 KB
NORTHWEST PIPELINE CORP 10-Q
- NORTHWEST PIPELINE CORP51.9 KB
NORTHWEST PIPELINE CORP 10-Q
- NORTHWEST PIPELINE CORP49.8 KB
NORTHWEST PIPELINE CORP 10-Q
- NORTHWEST PIPELINE CORP50.2 KB
NORTHWEST PIPELINE CORP 10-Q
- NORTHWEST PIPELINE CORP45.5 KB
NORTHWEST PIPELINE CORP 10-Q
Former names
- 2007-10-02 – 2013-05-08
NORTHWEST PIPELINE GP
- 1995-05-11 – 2007-09-12
NORTHWEST PIPELINE CORP