Ameren Corp
Statements
Segments
US companies must disclose in their mandatory reports how revenue breaks down across business segments, regions and product lines. We read that breakdown for you straight from the annual and quarterly reports (10-K and 10-Q) of Ameren Corp (AEE). It shows which part of the business is growing — and which one is holding it back.
Revenue by business segment
| Segment | 2020 | 2021 | 2022 |
|---|---|---|---|
| Union Electric Company | $3.11B 52.8% | $3.35B 51.5% · +7.8% | $4.05B 50.0% · +20.7% |
| Ameren Illinois Electric Distribution | $1.50B 25.4% | $1.64B 25.2% · +9.4% | $2.26B 27.9% · +37.6% |
| Ameren Illinois Gas | $760.0M 12.9% | $957.0M 14.7% · +25.9% | $1.18B 14.6% · +23.3% |
| Ameren Transmission | $523.0M 8.9% | $562.0M 8.6% · +7.5% | $615.0M 7.6% · +9.4% |
Large figure: segment revenue. Below it the share of revenue in that period and the change against the prior year.
Revenue by product line
| Segment | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
|---|---|---|---|---|---|---|
| Electric | $4.91B 84.8% | $5.30B 82.8% · +7.9% | $6.58B 82.7% · +24.2% | $6.44B 85.9% · -2.2% | $6.54B 85.8% · +1.6% | $7.67B 87.1% · +17.2% |
| Natural gas | $883.0M 15.2% | $1.10B 17.2% · +24.2% | $1.38B 17.3% · +25.4% | $1.06B 14.1% · -22.9% | $1.08B 14.2% · +2.1% | $1.13B 12.9% · +4.4% |
Large figure: segment revenue. Below it the share of revenue in that period and the change against the prior year.
Segment and region names are the ones the company itself uses and are shown as reported. Change and share refer to revenue.
Data as of: August 7, 2026 · Source: fundamental data & SEC filings (annual and quarterly reports, 10-K/10-Q) · Segment figures: SEC EDGAR (10-K/10-Q reports)
Note: pure fact-based analysis, not investment advice and not a solicitation to buy or sell. All figures without guarantee.