Open Season Offering Includes Market Access to Rockies Express Pipeline

Tallgrass today announced the launch of a binding open season, commencing July 21, 2025, to solicit commitments for firm transportation service on its previously announced pipeline project from multiple points of receipt in the Permian Basin to Rockies Express Pipeline markets and point(s) of delivery specified in accordance with the open season terms.

The new pipeline project is unique in that it will enable affordable and plentiful natural gas to access markets broadly across the U.S., including multiple major markets that are key hubs of activity for industrial, agricultural, and data center development.

Prior to the commencement of the open season, prospective shippers are encouraged to contact John Garnsey at Permian@Tallgrass.com or by phone at +1 (720) 730-2524 for additional information and to complete a confidentiality agreement. After executing a confidentiality agreement, prospective shippers may review additional details of the pipeline project, including rates, terms and conditions of service available to prospective shippers.

Cautionary Note Concerning Forward-Looking Statements

Disclosures in this news release contain "forward-looking statements." All statements, other than statements of historical fact, included in this news release that address activities, events or developments that management expects, believes, or anticipates will or may occur in the future are forward-looking statements. Without limiting the generality of the foregoing, forward-looking statements contained in this news release specifically include the execution, feasibility, scope, capabilities, benefits and impacts of the new pipeline project and the execution, scope and timing of any open season in connection therewith. Such statements are subject to a number of assumptions, risks, and uncertainties, many of which are beyond the control of Tallgrass, which may cause actual results to differ materially from those implied or expressed by the forward-looking statements, and other important factors that could cause actual results to differ materially from those projected, including those set forth in reports and financial statements made available by Tallgrass. Any forward-looking statement applies only as of the date on which such statement is made, and Tallgrass does not intend to correct or update any forward-looking statement, whether as a result of new information, future events or otherwise, except as required by law.

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