| Rank | Company | Total assets | Sector | Industry | Country | Exchange |
|---|---|---|---|---|---|---|
| 1 | $464B | Energy | Oil & Gas Refining | United States | NYSE | |
| 2 | $370B | Energy | Oil & Gas | United States | NYSE | |
| 3 | $330B | Energy | Oil & Gas Refining | United States | NYSE | |
| 4 | $291B | Energy | Oil & Gas | United States | NYSE | |
| 5 | $279B | Energy | Oil & Gas Refining | United States | NYSE | |
| 6 | $132B | Energy | Oil & Gas Refining | United States | NYSE | |
| 7 | $124B | Energy | Oil & Gas Refining | United States | NYSE | |
| 8 | $94.3B | Energy | Oil & Gas Refining | United States | NYSE | |
| 9 | $81.8B | Energy | Oil & Gas Refining | United States | NYSE | |
| 10 | $70.9B | Energy | Oil & Gas | United States | NYSE | |
| 11 | $70.2B | Energy | Oil & Gas | United States | Nasdaq | |
| 12 | $64.7B | Energy | Oil & Gas Refining | United States | NYSE | |
| 13 | $55.5B | Energy | Oil & Gas | United States | NYSE | |
| 14 | $54.8B | Energy | Oil & Gas | United States | NYSE | |
| 15 | $41.3B | Energy | Oil & Gas | United States | NYSE | |
| 16 | $29.4B | Energy | Oil & Gas Refining | United States | NYSE | |
| 17 | $28.0B | Energy | Oil & Gas | United States | Nasdaq | |
| 18 | $25.8B | Energy | Oil & Gas | United States | NYSE | |
| 19 | $19.3B | Energy | Oil & Gas | United States | NYSE | |
| 20 | $18.9B | Energy | Oil & Gas | United States | NYSE | |
| 21 | $18.5B | Energy | Oil & Gas | United States | NYSE | |
| 22 | $18.0B | Energy | Oil & Gas | United States | Nasdaq | |
| 23 | $15.2B | Energy | Oil & Gas | United States | NYSE | |
| 24 | $15.2B | Energy | Oil & Gas | United States | NYSE | |
| 25 | $14.7B | Energy | Oil & Gas Refining | United States | NYSE | |
| 26 | $13.7B | Energy | Oil & Gas | United States | Nasdaq | |
| 27 | $13.5B | Energy | Oil & Gas | United States | NYSE | |
| 28 | $12.1B | Energy | Oil & Gas | United States | Nasdaq | |
| 29 | $12.0B | Energy | Oil & Gas | United States | NYSE | |
| 30 | $10.3B | Energy | Oil & Gas | United States | NYSE | |
| 31 | $9.14B | Energy | Oil & Gas | United States | NYSE | |
| 32 | $7.56B | Energy | Oil & Gas | United States | NYSE | |
| 33 | $7.55B | Energy | Oil & Gas Refining | United States | NYSE | |
| 34 | $7.52B | Energy | Oil & Gas | United States | NYSE | |
| 35 | $7.24B | Energy | Oil & Gas | United States | NYSE | |
| 36 | $7.11B | Energy | Oil & Gas | United States | NYSE | |
| 37 | $7.10B | Energy | Oil & Gas | United States | NYSE | |
| 38 | $6.29B | Energy | Oil & Gas | United States | NYSE | |
| 39 | $6.12B | Energy | Coal | United States | NYSE | |
| 40 | $6.11B | Energy | Oil & Gas | United States | NYSE | |
| 41 | $5.83B | Energy | Oil & Gas | United States | NYSE | |
| 42 | $5.45B | Energy | Coal | United States | NYSE | |
| 43 | $5.45B | Energy | Oil & Gas | United States | NYSE | |
| 44 | $5.43B | Energy | Oil & Gas | United States | NYSE | |
| 45 | $5.37B | Energy | Oil & Gas | United States | Nasdaq | |
| 46 | $4.53B | Energy | Oil & Gas | United States | NYSE | |
| 47 | $4.49B | Energy | Oil & Gas | United States | NYSE | |
| 48 | $4.42B | Energy | Oil & Gas | United States | NYSE | |
| 49 | $4.31B | Energy | Oil & Gas | United States | NYSE | |
| 50 | $4.26B | Energy | Oil & Gas | United States | NYSE | |
| 51 | $4.24B | Energy | Oil & Gas | United States | NYSE | |
| 52 | $4.11B | Energy | Oil & Gas | United States | NYSE | |
| 53 | $4.08B | Energy | Oil & Gas Refining | United States | NYSE | |
| 54 | $3.94B | Energy | Oil & Gas | United States | NYSE | |
| 55 | $3.68B | Energy | Oil & Gas | United States | NYSE | |
| 56 | $3.63B | Energy | Oil & Gas | United States | NYSE | |
| 57 | $3.48B | Energy | Oil & Gas Refining | United States | NYSE | |
| 58 | $3.17B | Energy | Oil & Gas | United States | Nasdaq | |
| 59 | $3.17B | Energy | Oil & Gas | United States | NYSE | |
| 60 | $3.14B | Energy | Oil & Gas | United States | NYSE | |
| 61 | $2.94B | Energy | Coal | United States | Nasdaq | |
| 62 | $2.90B | Energy | Coal | United States | NYSE | |
| 63 | $2.85B | Energy | Oil & Gas Refining | United States | NYSE | |
| 64 | $2.80B | Energy | Oil & Gas Refining | United States | Nasdaq | |
| 65 | $2.69B | Energy | Oil & Gas | United States | NYSE | |
| 66 | $2.56B | Energy | Oil & Gas | United States | NYSE | |
| 67 | $2.51B | Energy | Oil & Gas | United States | Nasdaq | |
| 68 | $2.26B | Energy | Oil & Gas | United States | NYSE | |
| 69 | $2.26B | Energy | Coal | United States | NYSE | |
| 70 | $2.19B | Energy | Oil & Gas | United States | NYSE | |
| 71 | $2.10B | Energy | Oil & Gas | United States | Nasdaq | |
| 72 | $2.06B | Energy | Oil & Gas | United States | NYSE | |
| 73 | $1.79B | Energy | Oil & Gas | United States | NYSE | |
| 74 | $1.76B | Energy | Oil & Gas | United States | NYSE | |
| 75 | $1.56B | Energy | Oil & Gas | United States | NYSE | |
| 76 | $1.46B | Energy | Oil & Gas | United States | NYSE | |
| 77 | $1.37B | Energy | Oil & Gas | United States | NYSE | |
| 78 | $1.33B | Energy | Oil & Gas | United States | NYSE | |
| 79 | $1.28B | Energy | Oil & Gas | United States | NYSE | |
| 80 | $1.27B | Energy | Oil & Gas | United States | NYSE | |
| 81 | $1.25B | Energy | Oil & Gas | United States | NYSE | |
| 82 | $1.24B | Energy | Oil & Gas | United States | NYSE | |
| 83 | $1.15B | Energy | Oil & Gas | United States | NYSE | |
| 84 | $1.04B | Energy | Oil & Gas | United States | NYSE | |
| 85 | $1.02B | Energy | Coal | United States | Nasdaq | |
| 86 | $1.01B | Energy | Oil & Gas | United States | Nasdaq | |
| 87 | $969M | Energy | Oil & Gas | United States | NYSE | |
| 88 | $960M | Energy | Oil & Gas | United States | NYSE | |
| 89 | $924M | Energy | Oil & Gas | United States | NYSE | |
| 90 | $800M | Energy | Oil & Gas | United States | NYSE | |
| 91 | $758M | Energy | Coal | United States | NYSE | |
| 92 | $718M | Energy | Oil & Gas | United States | NYSE | |
| 93 | $677M | Energy | Coal | United States | NYSE | |
| 94 | $668M | Energy | Oil & Gas | United States | NYSE | |
| 95 | $587M | Energy | Oil & Gas | United States | NYSE | |
| 96 | $576M | Energy | Oil & Gas | United States | NYSE | |
| 97 | $518M | Energy | Oil & Gas | United States | NYSE | |
| 98 | $468M | Energy | Oil & Gas | United States | NYSE | |
| 99 | $433M | Energy | Oil & Gas | United States | NYSE | |
| 100 | $372M | Energy | Oil & Gas | United States | Nasdaq |