An energy company is a company which operates within the energy industry, which can be involved in the production and sale of energy, including fuel extraction, manufacturing, refining and distribution. The energy industry can be sub-divided into further, more specific areas – such as: the petroleum industry (oil companies, petroleum refiners, fuel transport and end-user sales at gas stations), gas and coal industry, as well as renewable energy companies. Also included are energy industry service companies as well as those which fall under the energy service company umbrella.
Here are the top 10 largest energy companies in the world.
| Rank | Company | Revenues |
| 1. | Sinopec Group | $407.01 billion |
| 2. | State Grid | $383.91 billion |
| 3. | China National Petroleum | $379.13 billion |
| 4. | Royal Dutch Shell | $352.11 billion |
| 5. | Saudi Aramco | $329.78 billion |
| 6. | BP | $282.62 billion |
| 7. | Exxon Mobil | $264.94 billion |
| 8. | Glencore | $215.11 billion |
| 9. | Total | $176.25 billion |
| 10. | Chevron | $146.52 billion |
