| Rank | Company | Total assets | Sector | Industry | Country | Exchange |
|---|---|---|---|---|---|---|
| 1 | $6.12B | Energy | Coal | United States | NYSE | |
| 2 | $5.45B | Energy | Coal | United States | NYSE | |
| 3 | $2.94B | Energy | Coal | United States | Nasdaq | |
| 4 | $2.90B | Energy | Coal | United States | NYSE | |
| 5 | $2.26B | Energy | Coal | United States | NYSE | |
| 6 | $1.02B | Energy | Coal | United States | Nasdaq | |
| 7 | $758M | Energy | Coal | United States | NYSE | |
| 8 | $677M | Energy | Coal | United States | NYSE | |
| 9 | $169M | Energy | Coal | United States | Nasdaq |