Company: AILIM
Filing Date: 2025-08-04
Form Type: 10-Q
Source: 0001002910-25-000112
Chunk: 140

Company: Ameren Illinois Co
Filing Date: 2025-08-04
Form: 10-Q
Item: Part I, Item 1
Chunk 140
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 Ameren Illinois' supplied power, partially offset the increases in purchased power for both periods. The changes to “Cost recovery mechanisms - offset in electric revenue” are fully offset by changes to “Cost recovery mechanisms - offset in fuel and purchased power” in electric revenues.

55

Natural Gas Purchased for Resale

The following table presents the increases (decreases) by Ameren segment for natural gas purchased for resale for the three and six months ended June 30, 2025, compared with the year-ago periods:

Three MonthsAmeren MissouriAmeren IllinoisElectric DistributionAmeren IllinoisNatural GasAmeren TransmissionOther /Intersegment EliminationsAmerenNatural gas purchased for resale change:Effect of weather (estimate)(a)$1 $— $— $— $— $1 Cost recovery mechanisms – offset in natural gas revenue(b)(1)— 6 — — 5 Total natural gas purchased for resale change$— $— $6 $— $— $6 Six MonthsNatural gas purchased for resale change:Effect of weather (estimate)(a)$7 $— $— $— $— $7 Cost recovery mechanisms – offset in natural gas revenue(b)(5)— 22 — — 17 Total natural gas purchased for resale change$2 $— $22 $— $— $24 

(a)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.

(b)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.

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 increased $6 million, or 18%, and $24 million, or 13%, for the three and six months ended June 30, 2025, respectively, compared with the year-ago periods, due primarily 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