Largest US Oil & Gas Companies by Market Cap
Energy sector, United States only (by company profile tags). Non-U.S. producers excluded.
Sector: EnergyCountry: US · USA
U.S. Energy names only
This list is limited to companies whose company profile has sector Energy and country code US — U.S. integrated oil and gas, E&P, midstream, refining, and related services in our data. Aramco, European majors, and other non-U.S. Energy names are excluded by design. Market cap is from the latest prices we store.
Third-party "oil & gas" screens may use different taxonomies. For a worldwide cap table without a country filter, use the full market cap ranking. For revenue-based size, see the revenue ranking.
Based on the latest closing prices, as of .
U.S. Energy-sector companies ranked by market capitalization
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