Public energy companies by market capitalization; current US$ billions; May 28, 2026, 03:20 UTC.
This ranking compares public energy companies by market capitalization in current US$ billions, using values accessed on May 28, 2026 at 03:20 UTC. It includes 9 ranked public-company rows and uses raw market-cap values, not row shares or a market-wide denominator. Saudi Aramco ranks first at US$1.798T, ahead of Exxon Mobil at US$613.03B. The first-ranked company is 10.4x the market value of the #9 company, Siemens Energy, at US$172.83B.
| Rank | Entry | Value | Period |
|---|---|---|---|
| 1 | Saudi Aramco | US$1.798T | Market-data snapshot accessed 2026-05-28T03:20:23Z |
| 2 | Exxon Mobil | US$613.03B | Market-data snapshot accessed 2026-05-28T03:20:23Z |
| 3 | Chevron | US$363.26B | Market-data snapshot accessed 2026-05-28T03:20:23Z |
| 4 | GE Vernova | US$277.28B | Market-data snapshot accessed 2026-05-28T03:20:23Z |
| 5 | PetroChina | US$250.74B | Market-data snapshot accessed 2026-05-28T03:20:23Z |
| 6 | Shell | US$233.10B | Market-data snapshot accessed 2026-05-28T03:20:23Z |
| 7 | TotalEnergies | US$192.63B | Market-data snapshot accessed 2026-05-28T03:20:23Z |
| 8 | NextEra Energy | US$182.80B | Market-data snapshot accessed 2026-05-28T03:20:23Z |
| 9 | Siemens Energy | US$172.83B | Market-data snapshot accessed 2026-05-28T03:20:23Z |
Source 1: CompaniesMarketCap
Publisher: CompaniesMarketCap
Dataset/table: Energy companies market-cap ranking, USD
Units: USD market capitalization
Date checked: 2026-05-28
Evidence: Supports the energy-company market-cap ranking and the listed USD values.
Market capitalization is a point-in-time equity market value and can move with share prices, share-count updates and currency changes. The values are timestamped market-data snapshots, not live feeds. No percentages are included because no true same-source market-wide denominator was supplied. Energy classification follows the market-data vendor page and can include utility-related or power-equipment companies alongside oil and gas producers.
Rows use the supplied USD market-cap values from the research brief. The numeric plotting value is normalized to current US$ billions, while display labels are formatted with US$ prefixes. Summary strips use only raw row values: top-two combined value, rank-one-minus-rank-two value gap and rank-one-to-rank-N multiple.
All rows use the same vendor sector page, access timestamp and USD market-cap unit.
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