The parties to the settlement include the staff of the Railroad Commission of Texas (RRC) and the cities served by SiEnergy. The settlement was filed with the RRC on Sept. 22 and remains subject to RRC approval.

If approved, the settlement would resolve all items in the general rate case. It provides for an $8.6 million increase in the annual revenue requirement, compared with SiEnergy’s original request of $12.0 million. The settlement also provides for a capital structure of 59.75% equity and 40.25% long-term debt, a return on equity of 9.8%, and an overall cost of capital of 8.0%.

The settlement reflects rate base of $343 million, an increase of $177 million since the last rate case in 2023. It also permits the consolidation of SiEnergy Gas, LLC and its gas distribution entities. If approved, new rates are expected to take effect in November 2026.

The settlement establishes the factors necessary for SiEnergy’s future participation in the Grid Reliability Infrastructure Program (GRIP), which enables interim rate adjustments based upon the change in net plant investments during the prior year. To participate in the program, SiEnergy would need to make its initial GRIP filing within two years of its rate case filing.

"I’m proud of the collaborative process with parties and believe the settlement represents a balanced outcome for our customers and other stakeholders," said June Dively, President of SiEnergy. "Importantly, after the rate case, SiEnergy’s rates are projected to be in line with our peer utilities. The settlement supports continued investment in system reliability while maintaining our focus on growth, affordability and disciplined cost management."

NW Natural Holding Company acquired SiEnergy Operating, LLC on Jan. 8, 2025. SiEnergy Opera