| Rank | Company | Revenue | Sector | Industry | Country | Exchange |
|---|---|---|---|---|---|---|
| 1 | $17.1B | Energy | Oil & Gas | United States | Nasdaq | |
| 2 | $13.6B | Energy | Oil & Gas | United States | Nasdaq | |
| 3 | $6.32B | Energy | Oil & Gas | United States | Nasdaq | |
| 4 | $4.67B | Energy | Oil & Gas | United States | Nasdaq | |
| 5 | $2.04B | Energy | Oil & Gas | United States | Nasdaq | |
| 6 | $1.79B | Energy | Oil & Gas | United States | Nasdaq | |
| 7 | $894M | Energy | Oil & Gas | United States | Nasdaq | |
| 8 | $636M | Energy | Oil & Gas | United States | Nasdaq | |
| 9 | $343M | Energy | Oil & Gas | United States | Nasdaq | |
| 10 | $192M | Energy | Oil & Gas | United States | Nasdaq | |
| 11 | $179M | Energy | Oil & Gas | United States | Nasdaq | |
| 12 | $104M | Energy | Oil & Gas | United States | Nasdaq | |
| 13 | $67.7M | Energy | Oil & Gas | United States | Nasdaq | |
| 14 | $60.4M | Energy | Oil & Gas | United States | Nasdaq | |
| 15 | $39.9M | Energy | Oil & Gas | United States | Nasdaq | |
| 16 | $6.87M | Energy | Oil & Gas | United States | Nasdaq | |
| 17 | $4.75M | Energy | Oil & Gas | United States | Nasdaq | |
| 18 | $0.90M | Energy | Oil & Gas | United States | Nasdaq |