JEFFERSON CITY, Mo. — The Missouri Public Service Commission (PSC) has set a November 23, 2026, deadline to intervene in a rate case filed by Spire Missouri Inc. d/b/a Spire requesting to change its natural gas base rates.
On November 2, 2026, Spire filed tariff sheets with the Commission seeking approval of a net increase in annual base rate revenues of approximately $208.56 million, which Spire states will equate to an increase for the average residential customer of approximately $13 per month or 15% for its Spire East service area and approximately $10 per month or 11% for its Spire West service area.
Applications to intervene in this case must be filed with the Secretary of the Missouri Public Service Commission, P.O. Box 360, Jefferson City, Missouri 65102, or by using the Commission’s Electronic Filing and Information System (EFIS) at www.psc.mo.gov . An application to intervene in a case, if granted by the Commission, will make the applicant a formal party to the case to participate in testimony, filings, hearings, and other portions of the case, as set by the Commission.
The public will be given opportunity to be involved in the case through local public hearings scheduled by the Commission. Local public hearings have not yet been scheduled in this case. When scheduled, customers will be notified directly by Spire and by the Commission via its website, social media and press release. Customers may provide comments to the Commission via mail, telephone, email (P.O. Box 360, Jefferson City, Mo. 65102, telephone number 800-392-4211, email pscinfo@psc.mo.gov ) or online via EFIS at
https://efis.psc.mo.gov/PublicComment/EmailForm . Comments should use related submission number GR-
2027-0075.
Customers may also contact the Office of the Public Counsel (Governor Office Building, 200 Madison Street, Suite 650, P.O. Box 2230, Jefferson City, Mo. 65102-2230, telephone number 866-922-2959, email mopco@opc.mo.gov ).
The Office of the Public Counsel represents the public in cases before the Commission.
The Commission typically has 11 months from the date a rate case is filed to make a decision on a rate proposal.
The PSC staff — a group of engineers, economists, analysts and auditors — will conduct an independent on-site, thorough review of the company’s books and records. This can take several months to complete and permits the staff to provide the Commission with a recommendation in the case. Other parties in the case, such as the Office of Public Counsel, consumer groups or industrial customers may also submit recommendations in the case.
For more information about the rate case process, visit the PSC’s website at
https://psc.mo.gov/General/Learn_About_Rate_Cases .