Combined Notice of Filings

Document Headings Document headings vary by document type but may contain the following: the agency or agencies that issued and signed a document the number of the CFR title and the number of each part the document amends, proposes to amend, or is directly related to the agency docket number / agency internal file number the RIN which identifies each regulatory action listed in the Unified Agenda of Federal Regulatory and Deregulatory Actions See the Document Drafting Handbook for more details. Department of Energy Federal Energy Regulatory Commission Take notice that the Commission has received the following Natural Gas Pipeline Rate and Refund Report filings: Filings Instituting Proceedings Docket Numbers: PR25-29-000. Applicants: Public Service Company of Colorado. Description: 284.123(g) Rate Filing: Statement of Rates_01-01-2025 to be effective 1/1/2025. Filed Date: 1/31/25. Accession Number: 20250131-5096. Comment Date: 5 p.m. ET 2/21/25. 284.123(g) Protest: 5 p.m. ET 4/1/25. Docket Numbers: PR25-30-000. Applicants: NorthWestern Corporation. Description: 284.123 Rate Filing: Revised Transportation and Storage Rates(Annual Tax Tracker) to be effective. 1/1/2025. Filed Date: 1/31/25. Accession Number: 20250131-5165. Comment Date: 5 p.m. ET 2/21/25. Docket Numbers: RP25-421-000. Applicants: MarkWest Pioneer, L.L.C. Description: Compliance filing: Order No. 587-AA Compliance to be effective 8/1/2025. Filed Date: 1/30/25. Accession Number: 20250130-5158. Comment Date: 5 p.m. ET 2/11/25. Docket Numbers: RP25-422-000. Applicants: Rendezvous Pipeline Company, LLC. Description: Compliance filing: Order No. 587-AA Compliance to be effective 8/1/2025. Filed Date: 1/30/25. Accession Number: 20250130-5159. Comment Date: 5 p.m. ET 2/11/25. Docket Numbers: RP25-423-000. Applicants: Western Gas Interstate Company. Description: Compliance filing: Order No. 587-AA Compliance to be effective 8/1/2025. Filed Date: 1/30/25. Accession Number: 20250130-5163. Comment Date: 5 p.m. ET …