| Rank | Company | Operating income | Sector | Industry | Country | Exchange |
|---|---|---|---|---|---|---|
| 1 | $8.90B | Energy | Oil & Gas | United States | NYSE | |
| 2 | $4.05B | Energy | Oil & Gas | United States | NYSE | |
| 3 | $3.66B | Energy | Oil & Gas | United States | Nasdaq | |
| 4 | $2.56B | Energy | Oil & Gas | United States | NYSE | |
| 5 | $2.06B | Energy | Oil & Gas | United States | NYSE | |
| 6 | $1.63B | Energy | Oil & Gas | United States | NYSE | |
| 7 | $1.51B | Energy | Oil & Gas | United States | NYSE | |
| 8 | $1.20B | Energy | Oil & Gas | United States | Nasdaq | |
| 9 | $1.17B | Energy | Oil & Gas | United States | NYSE | |
| 10 | $1.16B | Energy | Oil & Gas | United States | NYSE | |
| 11 | $1.08B | Energy | Oil & Gas | United States | Nasdaq | |
| 12 | $1.00B | Energy | Oil & Gas | United States | NYSE | |
| 13 | $949M | Energy | Oil & Gas | United States | NYSE | |
| 14 | $886M | Energy | Oil & Gas | United States | NYSE | |
| 15 | $692M | Energy | Oil & Gas | United States | NYSE | |
| 16 | $653M | Energy | Oil & Gas | United States | NYSE | |
| 17 | $628M | Energy | Oil & Gas | United States | NYSE | |
| 18 | $563M | Energy | Oil & Gas | United States | NYSE | |
| 19 | $558M | Energy | Oil & Gas | United States | NYSE | |
| 20 | $391M | Energy | Oil & Gas | United States | NYSE | |
| 21 | $349M | Energy | Oil & Gas | United States | NYSE | |
| 22 | $298M | Energy | Oil & Gas | United States | NYSE | |
| 23 | $296M | Energy | Oil & Gas | United States | NYSE | |
| 24 | $251M | Energy | Oil & Gas | United States | Nasdaq | |
| 25 | $241M | Energy | Oil & Gas | United States | NYSE | |
| 26 | $214M | Energy | Oil & Gas | United States | NYSE | |
| 27 | $195M | Energy | Oil & Gas | United States | NYSE | |
| 28 | $186M | Energy | Oil & Gas | United States | NYSE | |
| 29 | $137M | Energy | Oil & Gas | United States | NYSE | |
| 30 | $132M | Energy | Oil & Gas | United States | Nasdaq | |
| 31 | $119M | Energy | Oil & Gas | United States | NYSE | |
| 32 | $112M | Energy | Oil & Gas | United States | NYSE | |
| 33 | $89.9M | Energy | Oil & Gas | United States | NYSE | |
| 34 | $74.0M | Energy | Oil & Gas | United States | NYSE | |
| 35 | $52.5M | Energy | Oil & Gas | United States | NYSE | |
| 36 | $50.2M | Energy | Oil & Gas | United States | NYSE | |
| 37 | $47.8M | Energy | Oil & Gas | United States | NYSE | |
| 38 | $42.3M | Energy | Oil & Gas | United States | NYSE | |
| 39 | $40.9M | Energy | Oil & Gas | United States | NYSE | |
| 40 | $37.0M | Energy | Oil & Gas | United States | NYSE | |
| 41 | $34.2M | Energy | Oil & Gas | United States | NYSE | |
| 42 | $22.7M | Energy | Oil & Gas | United States | NYSE | |
| 43 | $19.9M | Energy | Oil & Gas | United States | NYSE | |
| 44 | $16.3M | Energy | Oil & Gas | United States | NYSE | |
| 45 | $11.6M | Energy | Oil & Gas | United States | Nasdaq | |
| 46 | $5.56M | Energy | Oil & Gas | United States | NYSE | |
| 47 | $4.78M | Energy | Oil & Gas | United States | Nasdaq | |
| 48 | $3.48M | Energy | Oil & Gas | United States | NYSE | |
| 49 | $3.32M | Energy | Oil & Gas | United States | NYSE | |
| 50 | $1.51M | Energy | Oil & Gas | United States | NYSE | |
| 51 | $0.67M | Energy | Oil & Gas | United States | Nasdaq |