OVERLAND PARK, Kan.– October 14, 2025 – Tortoise Capital today announced that ARIS WATER SOLUTIONS INC (XNYS: ARIS) will be removed from the Tortoise Global Water IndexSM (TGWTR) as a result of its announced acquisition by WESTERN MIDSTREAM PARTNERS (XNYS: WES). As a result, ARIS will be removed from the index at market close on October 14, 2025.
ARIS will be removed, and its weight distributed pro rata to remaining Index constituents.
About Tortoise Capital
With approximately $9.1 billion in assets under management as of August 31, 2025, Tortoise Capital’s solid record of investment experience and research dates back more than 20 years. As one of the earliest investors in midstream energy, Tortoise Capital believes it is well-positioned to be at the forefront of the global energy evolution that is under way. For more information about Tortoise Capital, visitwww.TortoiseCapital.com.
The Tortoise Global Water IndexSM is a proprietary, rules-based, modified capitalization-weighted, float-adjusted index comprised of companies that are materially engaged in the water infrastructure or water management industries.
The index mentioned is are the exclusive property of Tortoise Capital, which has contracted with S&P Opco, LLC (a subsidiary of S&P Dow Jones Indices LLC) to calculate and maintain the Tortoise Global Water IndexSM (the “Index”). The Index is not sponsored by S&P Dow Jones Indices or its affiliates or its third party licensors (collectively, “S&P Dow Jones Indices”). S&P Dow Jones Indices will not be liable for any errors or omissions in calculating the Indices. “Calculated by S&P Dow Jones Indices” and its related stylized mark(s) are service marks of S&P Dow Jones Indices and have been licensed for use by Tortoise Capital and its affiliates. S&P® is a registered trademark of Standard & Poor’s Financial Services LLC (“SPFS”), and Dow Jones® is a registered trademark of Dow Jones Trademark Holdings LLC (“Dow Jones”).
This data is provided for informational purposes only and is not intended for trading purposes. This document shall not constitute an offering of any security, product or service. The addition, removal or inclusion of a security in the index is not a recommendation to buy, sell or hold that security, nor is it investment advice. The information contained in this document is current as of the publication date. Tortoise makes no representations with respect to the accuracy or completeness of these materials and will not accept responsibility for damages, direct or indirect, resulting from an error or omission in this document. The methodology involves rebalancing and maintenance of the index that is made periodically during each year and may not, therefore, reflect real time information.
Safe Harbor Statement
This press release shall not constitute an offer to sell or a solicitation to buy, nor shall there be any sale of these securities in any state or jurisdiction in which such offer or solicitation or sale would be unlawful prior to registration or qualification under the laws of such state or jurisdiction.
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