Northwest Pipeline LLC NOTICE #31082 Tariff Filing - 2023 Summer Fuel Filing posted on Feb 28 2023 10:52AM TSP Name: Northwest Pipeline LLC TSP: 67977322 Critical: N Notice Stat Desc: INITIATE Notice Type Desc: RATES AND CHARGES Post D/T: 02/28/2023 10:52 AM MCT Notice Eff D/T: 02/28/2023 10:52 AM MCT Notice End D/T: Reqrd Rsp Desc: No response required Rsp D/T: Notice ID: 23-044 Prior Notice: Subject: Tariff Filing - 2023 Summer Fuel Filing Notice Text: Northwest filed with FERC its semi-annual fuel filing to place into effect new factors on April 1, 2023, for 
fuel gas used and gas lost and unaccounted-for. By this filing, Northwest proposes: (1) no change to the 
1.06% factor for transportation services under Rate Schedules TF-1, TF-2, TI-1, and DEX-1; (2) an increase 
from  0.32% to 0.49% in the factor for underground storage services under Rate Schedules SGS-2F and 
SGS-2I; (3)  an increase from 0.23% to 2.08% in the LNG liquefaction factor under Rate Schedules LS-2F, 
LS-3F, LS-2I, and LD-4I; and, (4) a decrease from 0.30% to 0.09% in the vaporization factor under Rate 
Schedules LS-2F, LS-3F, and LS-2I. These changes are reflected in the tariff record for which Northwest is 
seeking Commission acceptance.

Since no shippers have utilized services under either Rate Schedule LS-3F or Rate Schedule LD-4I Service 
Agreements, Northwest proposes no change to the Rate Schedules LS-3F or LD-4I Service Agreements 
liquefaction charge of $0.58646 during the upcoming April 2023 through March 2024 period.


A copy of the proposed filing is available on Northwest's website under Regulatory/Proposed Tariff 
Filings at the following link: http://www.northwest.williams.com/NWP_Portal/  (click 'Regulatory,' then 
'Proposed Tariff Filings'). Please direct comments and concerns to Michael Heeney (713-215-2424, 
michael.d.heeney@williams.com) or Bela Patel (713-215-2659, bela.patel@williams.com).

mh/bp