Energy companies in Ohio
4 energy companies are indexed in Ohio. Each entry below is built from public sources and links to its filings and identifiers. This is a factual directory, not a ranking.
| Company | Industry | Type | Ticker | Revenue (dated) |
|---|---|---|---|---|
| American Electric Power | Energy | public | AEP | $22B (FY 2025) |
| FirstEnergy | Energy | public | FE | $11B (FY 2021) |
| Marathon Petroleum Company | Energy | public | MPC | $133B (FY 2025) |
| DPL | Energy | subsidiary | — | — |
See all Ohio companies or allenergy companies.