Company: AILIM
Filing Date: 2025-05-05
Form Type: 10-Q
Source: 0001002910-25-000098
Chunk: 116

Company: Ameren Illinois Co
Filing Date: 2025-05-05
Form: 10-Q
Item: Part I, Item 1
Chunk 116
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 and heating degree-days on natural gas demand compared with the year-ago period; 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 $18 million, or 12%, for the three months ended March 31, 2025, compared with the year-ago period, due to increased natural gas purchased for resale expenses at Ameren Illinois Natural Gas and Ameren Missouri, as discussed below.

Ameren Missouri

Ameren Missouri’s natural gas purchased for resale expenses were comparable for the three months ended March 31, 2025, compared with the year-ago period. Colder winter temperatures increased natural gas costs $6 million as heating degree days increased 21%. “Cost recovery mechanisms — offset in natural gas revenue” decreased natural gas costs $4 million due to lower amortization of natural gas costs that were previously deferred under the PGA.

Ameren Illinois Natural Gas

Ameren Illinois Natural Gas’ natural gas purchased for resale expenses increased $16 million, or 13%, for the three months ended March 31, 2025, compared with the year-ago period, 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.

49

Other Operations and Maintenance Expenses

Increase (Decrease) by SegmentTotal by Segment(a)Overall Ameren Increase of $15 Million

(a)Includes other/intersegment eliminations of $(5) million and $3 million in the three months ended March 31, 2025 and 2024, respectively.

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

Ameren

Other operations and maintenance expenses increased $15 million in the three months ended March 31, 2025, compared with the year-ago period, due to the changes discussed below. In addition to changes by segments discussed below, other operations and maintenance expenses decreased $8 million in the three months