Company: AILIM
Filing Date: 2025-11-06
Form Type: 10-Q
Source: 0001002910-25-000129
Chunk: 139

Company: Ameren Illinois Co
Filing Date: 2025-11-06
Form: 10-Q
Item: Part I, Item 1
Chunk 139
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ably affected by a higher ROE (+$7 million in both periods) due to the absence of the October 2024 FERC order that decreased base ROE for certain historical periods.

Natural Gas Revenues

Ameren

Ameren’s natural gas revenues were comparable for the three months ended September 30, 2025, and increased $32 million, or 4%, for the nine months ended September 30, 2025, compared with the year-ago periods, due to increased revenues at Ameren Illinois Natural Gas and Ameren Missouri, as discussed below. 

Ameren Missouri

Ameren Missouri’s natural gas revenues were comparable for the three months ended September 30, 2025, and increased $6 million, or 6%, for the nine months ended September 30, 2025, compared with the year-ago periods, primarily due to colder winter temperatures.

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Ameren Illinois Natural Gas

Ameren Illinois Natural Gas’ revenues were comparable for the three months ended September 30, 2025, and increased $26 million, or 4%, for the nine months ended September 30, 2025, compared with the year-ago periods. “Cost recovery mechanisms – offset in natural gas purchased for resale” increased revenues $15 million for the nine months ended September 30, 2025, due to a higher collection of natural gas costs previously deferred under the PGA. Changes in natural gas revenues under the PGA are fully offset by changes in natural gas purchased for resale expenses. Revenues increased $7 million for the nine months ended September 30, 2025 due to a change in the timing of revenues recognized under the VBA. Revenues are decoupled from actual sales volumes for residential and small nonresidential customers, and the change in the timing of revenues is not expected to materially impact full-year results.

Fuel and Purchased Power

The following table presents the increases (decreases) by Ameren segment for fuel and purchased power for the three and nine months ended September 30, 2025, compared with the year-ago periods:

Three MonthsAmeren MissouriAmeren IllinoisElectric DistributionAmeren IllinoisNatural GasAmeren TransmissionOther /Intersegment EliminationsAmerenFuel and purchased power change:Energy costs (excluding the estimated effect of weather)$148 $— $— $— $— $148 Retail sales volume (excluding the estimated effect