Company: AILIM
Filing Date: 2025-08-04
Form Type: 10-Q
Source: 0001002910-25-000112
Chunk: 23

Company: Ameren Illinois Co
Filing Date: 2025-08-04
Form: 10-Q
Item: Part I, Item 2
Chunk 23
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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 the three and six months ended June 30, 2025, compared with the year-ago periods. Colder winter temperatures increased natural gas costs $7 million for the six months ended June 30, 2025 as heating degree days increased 22%, while “Cost recovery mechanisms — offset in natural gas revenue” decreased natural gas costs $5 million due to lower amortization of natural gas costs that were previously deferred under the PGA for the six months ended June 30, 2025.

Ameren Illinois Natural Gas

Ameren Illinois Natural Gas’ natural gas purchased for resale expenses increased $6 million, or 25%, and $22 million, or 15%, for the three and six months ended June 30, 2025, respectively, compared with the year-ago periods, primarily due to higher 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.

56

Other Operations and Maintenance Expenses

Increase (Decrease) by SegmentOverall Ameren Decrease of $5 Million (QTD YoY)Overall Ameren Increase of $10 Million (YTD YoY)Total by Segment(a)

(a)Includes $18 million and $16 million at Ameren Transmission in the three months ended June 30, 2025 and 2024, respectively. Includes other/intersegment eliminations of $(7) million and $(10) million in the three months ended June 30, 2025 and 2024, respectively. Also includes other/intersegment eliminations of $(12) million and $(7) million in the six months ended June 30, 2025 and 2024, respectively. 

Ameren MissouriAmeren Illinois Natural GasOther/Intersegment EliminationsAmeren Illinois Electric DistributionAmeren Transmission

Ameren

Other operations and maintenance expenses decreased $5 million in the three months ended June 30, 2025, and increased $10 million in the six months ended June 30, 2025, due to the changes discussed below. In addition to changes by segments discussed below, other operations and maintenance expenses increased $3