MountainWest Overthrust Pipeline Motion to Vacate Certificate in Part

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MountainWest Overthrust Pipeline, LLC; Notice of Motion To Vacate Certificate in Part

A Notice by the Federal Energy Regulatory Commission on 04/13/2026

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• Document Details Published Content - Document Details Agencies Department of Energy Federal Energy Regulatory Commission Agency/Docket Number Docket No. CP24-13-000 Document Citation 91 FR 18843 Document Number 2026-07123 Document Type Notice Pages 18843-18845
  (3 pages) Publication Date 04/13/2026 Published Content - Document Details

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• Document Details Published Content - Document Details Agencies Department of Energy Federal Energy Regulatory Commission Agency/Docket Number Docket No. CP24-13-000 Document Citation 91 FR 18843 Document Number 2026-07123 Document Type Notice Pages 18843-18845
  (3 pages) Publication Date 04/13/2026 Published Content - Document Details

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| Docket No. CP24-13-000
(5 Documents) | | | |
| --- | | | |
| Date | | Action | Title |
| | 2026-04-13 | | MountainWest Overthrust Pipeline, LLC; Notice of Motion To Vacate Certificate in Part |
| | 2024-07-01 | | MountainWest Overthrust Pipeline, LLC; Notice of Availability of the Environmental Assessment for the Proposed Westbound Compression Expansion Project |
| | 2024-01-23 | | MountainWest Overthrust Pipeline, LLC; Notice of Schedule for the Preparation of an Environmental Assessment for the Westbound Compression Expansion Project |
| | 2023-12-20 | | MountainWest Overthrust Pipeline, LLC; Notice of Scoping Period Requesting Comments on Environmental Issues for the Proposed Westbound Compression Expansion Project |
| | 2023-11-21 | | MountainWest Overthrust Pipeline, LLC; Notice of Application and Establishing Intervention Deadline |

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Department of Energy

Federal Energy Regulatory Commission

1. [Docket No. CP24-13-000] Take notice that on March 11, 2026, MountainWest Overthrust Pipeline, LLC (Overthrust), 650 South Main Street, Suite 300, Salt Lake City, Utah 84101, filed in the above-referenced docket a motion to vacate a portion of the certificate authority granted by the Commission on October 17, 2024. [1 ] In the Certificate Order, the Commission granted Overthrust a certificate of public convenience and necessity to construct the Westbound Compression Expansion Project (Project) located in Lincoln and Sweetwater Counties, Wyoming. The Project created 325,000 dekatherms per day of incremental firm transportation capacity from Overthrust's existing Wamsutter Interconnect to a new Kern River Gas Transmission Company (Kern River) delivery point near Overthrust's existing Roberson Compressor Station.

In its motion, Overthrust states that it has constructed most of the certificated facilities, with the exception of a pig launcher at its existing Cabin 31 Interconnect Pipeline Facility (Cabin 31). On November 13, 2025, Commission staff authorized Overthrust to place the completed facilities into service, noting that Overthrust reported that it would be able to provide the full project capacity without completion of the pig launcher. Overthrust states that, due to a delay in receiving the revised right-of-way grant from the Kemmerer Bureau of Land Management and not yet reaching agreement with a private landowner, Overthrust has not begun construction at Cabin 31. Overthrust explains that these facilities are auxiliary and not necessary to provide the full capacity, but that it will continue efforts to install the Cabin 31 facilities at a later time for future maintenance and safety of the pipeline. Therefore, Overthrust requests that the Commission vacate the portion of the certificate for the project that authorizes the Cabin 31 facilities. ( printed page 18844)

In addition to publishing the full text of this document in the Federal Register, the Commission provides all interested persons an opportunity to view and/or print the contents of this document via the internet through the Commission's Home Page (http://www.ferc.gov). From the Commission's Home Page on the internet, this information is available on eLibrary. The full text of this document is available on eLibrary in PDF and Microsoft Word format for viewing, printing, and/or downloading. To access this document in eLibrary, type the docket number excluding the last three digits of this document in the docket number field.

User assistance is available for eLibrary and the Commission's website during normal business hours from FERC Online Support at (202) 502-6652 (toll free at 1-866-208-3676) or email at ferconlinesupport@ferc.gov, or the Public Reference Room at (202) 502-8371, TTY (202) 502-8659. Email the Public Reference Room at public.referenceroom@ferc.gov.

Any questions regarding the application should be directed to Nicole M. Turpen, Senior Counsel, MountainWest Overthrust Pipeline, LLC, P.O. Box 1396, Houston, Texas 77251-1396, by phone at (346) 415-5242, or by email at nicole.turpen@williams.com.

Public Participation

There are three ways to become involved in the Commission's review of Overthrust's request: you can file comments on the application, you can protest the filing, and you can file a motion to intervene in the proceeding. There is no fee or cost for filing comments or intervening. The deadline for filing a motion to intervene is 5:00 p.m. Eastern Time on April 28, 2026. How to file protests, motions to intervene, and comments is explained below.

For public inquiries and assistance with making filings such as interventions, comments, or requests for rehearing, contact the Office of Public Participation (OPP) at (202) 502-6595 or OPP@ferc.gov.

Comments

Any person wishing to comment on the application may do so. Comments may include statements of support or objections, to the application as a whole or specific aspects of the application. The more specific your comments, the more useful they will be.

Protests

Pursuant to sections 157.10(a)(4) [2 ] and 385.211 [3 ] of the Commission's regulations under the NGA, any person [4 ] may file a protest to the application. Protests must comply with the requirements specified in section 385.2001 [5 ] of the Commission's regulations. A protest may also serve as a motion to intervene so long as the protestor states it also seeks to be an intervenor.

To ensure that your comments or protests are timely and properly recorded, please submit your comments on or before 5:00 p.m. Eastern Time on April 28, 2026.

There are three methods you can use to submit your comments or protests to the Commission. In all instances, please reference the Project docket number CP24-13-000 in your submission.

(1) You may file your comments electronically by using the eComment feature, which is located on the Commission's website at www.ferc.gov under the link to Documents and Filings. Using eComment is an easy method for interested persons to submit brief, text-only comments on a project;

(2) You may file your comments or protests electronically by using the eFiling feature, which is located on the Commission's website (www.ferc.gov) under the link to Documents and Filings. With eFiling, you can provide comments in a variety of formats by attaching them as a file with your submission. New eFiling users must first create an account by clicking on “eRegister.” You will be asked to select the type of filing you are making; first select “General” and then select “Comment on a Filing”; or

(3) You can file a paper copy of your comments or protests by mailing them to the following address below. Your written comments must reference the Project docket number (CP24-13-000).

To file via USPS: Debbie-Anne A. Reese, Secretary, Federal Energy Regulatory Commission, 888 First Street NE, Washington, DC 20426.

To file via any other courier: Debbie-Anne A. Reese, Secretary, Federal Energy Regulatory Commission, 12225 Wilkins Avenue, Rockville, Maryland 20852.

The Commission encourages electronic filing of comments (options 1 and 2 above) and has eFiling staff available to assist you at (202) 502-8258 or FercOnlineSupport@ferc.gov.

The Commission considers all comments received about the project in determining the appropriate action to be taken. However, the filing of a comment alone will not serve to make the filer a party to the proceeding. To become a party, you must intervene in the proceeding. For instructions on how to intervene, see below.

Interventions

Any person, which includes individuals, organizations, businesses, municipalities, and other entities, [6 ] has the option to file a motion to intervene in this proceeding. Only intervenors have the right to request rehearing of Commission orders issued in this proceeding and to subsequently challenge the Commission's orders in the U.S. Circuit Courts of Appeal.

To intervene, you must submit a motion to intervene to the Commission in accordance with Rule 214 of the Commission's Rules of Practice and Procedure [7 ] and the regulations under the NGA [8 ] by the intervention deadline for the project, which is 5:00 p.m. Eastern Time on April 28, 2026. As described further in Rule 214, your motion to intervene must state, to the extent known, your position regarding the proceeding, as well as your interest in the proceeding. For an individual, this could include your status as a landowner, ratepayer, resident of an impacted community, or recreationist. You do not need to have property directly impacted by the project in order to intervene. For more information about motions to intervene, refer to the FERC website at https://www.ferc.gov/​resources/​guides/​how-to/​intervene.asp.

There are two ways to submit your motion to intervene. In both instances, please reference the Project docket number CP24-13-000 in your submission.

(1) You may file your motion to intervene by using the Commission's eFiling feature, which is located on the Commission's website (www.ferc.gov) under the link to Documents and Filings. New eFiling users must first create an account by clicking on “eRegister.” You will be asked to select the type of filing you are making; first select “General” and then select “Intervention.” The eFiling feature includes a document-less intervention option; for more information, visit https://www.ferc.gov/​docs-filing/​efiling/​document-less-intervention.pdf.; or

(2) You can file a paper copy of your motion to intervene, along with three ( printed page 18845) copies, by mailing the documents to the address below. Your motion to intervene must reference the Project docket number CP24-13-000.

To file via USPS: Debbie-Anne A. Reese, Secretary, Federal Energy Regulatory Commission, 888 First Street NE, Washington, DC 20426.

To file via any other courier: Debbie-Anne A. Reese, Secretary, Federal Energy Regulatory Commission, 12225 Wilkins Avenue, Rockville, Maryland 20852.

The Commission encourages electronic filing of motions to intervene (option 1 above) and has eFiling staff available to assist you at (202) 502-8258 or FercOnlineSupport@ferc.gov.

Protests and motions to intervene must be served on the applicant either by mail at: Nicole M. Turpen, Senior Counsel, MountainWest Overthrust Pipeline, LLC, P.O. Box 1396, Houston, Texas 77251-1396, or by email (with a link to the document) at nicole.turpen@williams.com..

Any subsequent submissions by an intervenor must be served on the applicant and all other parties to the proceeding. Contact information for parties can be downloaded from the service list at the eService link on FERC Online. Service can be via email with a link to the document.

All timely, unopposed [9 ] motions to intervene are automatically granted by operation of Rule 214(c)(1). [10 ] Motions to intervene that are filed after the intervention deadline are untimely, and may be denied. Any late-filed motion to intervene must show good cause for being late and must explain why the time limitation should be waived and provide justification by reference to factors set forth in Rule 214(d) of the Commission's Rules and Regulations. [11 ] A person obtaining party status will be placed on the service list maintained by the Secretary of the Commission and will receive copies (paper or electronic) of all documents filed by the applicant and by all other parties.

Tracking the Proceeding

Throughout the proceeding, additional information about the project will be available from OPP at (202) 502-6595 or on the FERC website at www.ferc.gov using the “eLibrary” link as described above. The eLibrary link also provides access to the texts of all formal documents issued by the Commission, such as orders, notices, and rulemakings.

In addition, the Commission offers a free service called eSubscription which allows you to keep track of all formal issuances and submittals in specific dockets. This can reduce the amount of time you spend researching proceedings by automatically providing you with notification of these filings, document summaries, and direct links to the documents. For more information and to register, go to www.ferc.gov/​docs-filing/​esubscription.asp.

Intervention Deadline: 5:00 p.m. Eastern Time on April 28, 2026.

(Authority: 18 CFR 2.1)

Dated: April 7, 2026.

Debbie-Anne A. Reese,

Secretary.

Footnotes

1. MountainWest Overthrust Pipeline, LLC, 189 FERC ¶ 61,046 (2024) (Certificate Order).

Back to Citation 2. 18 CFR 157.10(a)(4).

Back to Citation 3. 18 CFR 385.211.

Back to Citation 4.

                     Persons include individuals, organizations, businesses, municipalities, and other entities. [18 CFR 385.102(d)](https://www.ecfr.gov/current/title-18/section-385.102#p-385.102(d)).

Back to Citation 5. 18 CFR 385.2001.

Back to Citation 6. 18 CFR 385.102(d).

Back to Citation 7. 18 CFR 385.214.

Back to Citation 8. 18 CFR 157.10.

Back to Citation 9.

                     The applicant has 15 days from the submittal of a motion to intervene to file a written objection to the intervention.

Back to Citation 10. 18 CFR 385.214(c)(1).

Back to Citation 11. 18 CFR 385.214(b)(3) and (d).

Back to Citation [FR Doc. 2026-07123 Filed 4-10-26; 8:45 am]

BILLING CODE 6717-01-P

Published Document: 2026-07123 (91 FR 18843)