| Civil Construction - 3 Years |
| Commerical Construction - 4 Years |
| Concrete Construction - 10 Years |
| Demolition - 5 Years |
| Drilling Site Construction - 4 Years |
| Marine Construction - 5 Years |
| Offshore Drilling - 5 Years |
| Petrochemical/Oil Refinery Construction - 4 Years |
| Petrochemical/Oil Refinery Maintenance - 3 Years |
| Pipeline Construction - 3 Years |
| Steel Erection - 15 Years |
| Well Site/Frac Site Operations - 2 Years |