Largest US Energy Companies
The 20 large US companies in Energy, ordered by market cap. Select a name to see its financial statements.
Data updated: Nov 6, 2026
| Rank | Company | Market cap | Net margin | Revenue growth | Revenue |
|---|---|---|---|---|---|
| 1 | ExxonMobilXOM · Integrated oil & gas | $674.3B | 8.7% | −5.0% | $332.238B |
| 2 | ChevronCVX · Integrated oil & gas | $418.5B | 6.7% | −4.6% | $184.432B |
| 3 | ConocoPhillipsCOP · Oil & gas exploration and production | $160.2B | 13.6% | +7.7% | $58.944B |
| 4 | Marathon PetroleumMPC · Refining | $108.7B | 3.0% | −4.4% | $132.699B |
| 5 | Valero EnergyVLO · Refining | $102.6B | 1.9% | −5.5% | $122.687B |
| 6 | Phillips 66PSX · Refining & petrochemicals | $96.36B | 3.3% | −7.5% | $132.376B |
| 7 | Enterprise Products PartnersEPD · Oil & gas pipelines (partnership) | $79.98B | 11.1% | −6.4% | $52.596B |
| 8 | Williams CompaniesWMB · Natural gas pipelines | $78.77B | 17.6% | +17.9% | $14.899B |
| 9 | EOG ResourcesEOG · Oil & gas exploration and production | $76.50B | 22.0% | −4.5% | $22.632B |
| 10 | SLBSLB · Oilfield services | $73.27B | 9.4% | −1.6% | $35.708B |
| 11 | Kinder MorganKMI · Natural gas pipelines | $67.25B | 18.0% | +12.2% | $16.937B |
| 12 | Cheniere EnergyLNG · LNG exports | $58.46B | 27.4% | +26.3% | $19.464B |
| 13 | Targa ResourcesTRGP · Natural gas processing & transport | $58.30B | 11.3% | +4.0% | $17.0283B |
| 14 | Occidental PetroleumOXY · Oil & gas exploration and production | $56.34B | 11.0% | −5.0% | $21.569B |
| 15 | ONEOKOKE · Natural gas & NGL pipelines | $54.38B | 10.1% | +55.0% | $33.629B |
| 16 | Diamondback EnergyFANG · Oil & gas exploration and production | $50.15B | 11.1% | +35.8% | $15.026B |
| 17 | Devon EnergyDVN · Oil & gas exploration and production | $40.31B | 15.7% | +5.5% | $16.786B |
| 18 | Energy TransferET · Oil & gas pipelines (partnership) | — | 5.2% | +3.5% | $85.536B |
| 19 | Baker HughesBKR · Oilfield services & energy equipment | — | 9.3% | −0.3% | $27.733B |
| 20 | MPLXMPLX · Oil & gas pipelines (partnership) | — | 38.1% | +8.9% | $12.998B |