Company: AILIM
Filing Date: 2025-11-06
Form Type: 10-Q
Source: 0001002910-25-000129
Chunk: 22

Company: Ameren Illinois Co
Filing Date: 2025-11-06
Form: 10-Q
Item: Part I, Item 2
Chunk 22
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Ameren IllinoisNatural GasAmeren TransmissionOther /Intersegment EliminationsAmerenNatural gas purchased for resale change:Cost recovery mechanisms – offset in natural gas revenue(a)$2 $— $(7)$— $— $(5)Total natural gas purchased for resale change$2 $— $(7)$— $— $(5)Nine MonthsNatural gas purchased for resale change:Effect of weather (estimate)(b)$7 $— $— $— $— $7 Cost recovery mechanisms – offset in natural gas revenue(a)(3)— 15 — — 12 Total natural gas purchased for resale change$4 $— $15 $— $— $19 

(a)Natural gas purchased for resale changes are offset by corresponding changes in “Natural gas revenues” on the statement of income. These items have no overall impact on earnings.

(b)Represents the estimated variation resulting primarily from changes in cooling and heating degree-days on natural gas demand compared with the year-ago periods; this variation is based on temperature readings from the National Oceanic and Atmospheric Administration weather stations at local airports in our service territories.

Ameren

Ameren Missouri and Ameren Illinois are allowed to pass on to customers prudently incurred costs for natural gas purchased for resale. Ameren’s natural gas purchased for resale expenses were comparable for the three months ended September 30, 2025, and increased $19 million, or 9%, for the nine months ended September 30, 2025, compared with the year-ago periods, primarily due to increased natural gas purchased for resale expenses at Ameren Illinois Natural Gas, as discussed below.

Ameren Missouri

Ameren Missouri’s natural gas purchased for resale expenses were comparable for the three and nine months ended September 30, 2025, compared with the year-ago periods.

Ameren Illinois Natural Gas

Ameren Illinois Natural Gas’ natural gas purchased for resale expenses decreased $7 million, or 27%, for the three months ended September 30, 2025, and increased $15 million, or 9%, for the nine months ended September 30, 2025, compared with the year-ago periods, primarily due to the amortization of natural gas costs that were previously deferred under the PGA. Changes in natural gas purchased for resale expenses are fully offset by changes in natural gas revenues under the PGA.

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