| 1 | CAT | Caterpillar Inc. | 4.20% |
| 2 | NEE | NextEra Energy, Inc. | 4.12% |
| 3 | UNP | Union Pacific Corporation | 3.85% |
| 4 | PWR | Quanta Services, Inc. | 3.41% |
| 5 | CSX | CSX Corporation | 3.20% |
| 6 | CRH | CRH plc | 2.94% |
| 7 | SO | The Southern Company | 2.92% |
| 8 | DUK | Duke Energy Corporation | 2.75% |
| 9 | NSC | Norfolk Southern Corporation | 2.70% |
| 10 | CEG | Constellation Energy Corporation | 2.53% |
| 11 | WMB | The Williams Companies, Inc. | 2.39% |
| 12 | FIX | Comfort Systems USA, Inc. | 2.01% |
| 13 | URI | United Rentals, Inc. | 1.92% |
| 14 | AEP | American Electric Power Company, Inc. | 1.91% |
| 15 | TSX: TRP | TC Energy Corporation | 1.76% |
| 16 | KMI | Kinder Morgan, Inc. | 1.76% |
| 17 | SRE | Sempra | 1.72% |
| 18 | NUE | Nucor Corporation | 1.61% |
| 19 | OKE | ONEOK, Inc. | 1.54% |
| 20 | VMC | Vulcan Materials Company | 1.49% |
| 21 | MLM | Martin Marietta Materials, Inc. | 1.48% |
| 22 | D | Dominion Energy, Inc. | 1.47% |
| 23 | ETR | Entergy Corporation | 1.37% |
| 24 | EME | EMCOR Group, Inc. | 1.36% |
| 25 | VST | Vistra Corp. | 1.36% |
| View IFRA holdings |