HIER DRILLING CO
USDOT 1203310 · Active
Carrier identity
| USDOT Number | 1203310 |
|---|---|
| MC Number | — |
| Legal Name | HIER DRILLING CO |
| DBA Name | — |
| Entity Type | — |
| Phone | 3036883012 |
| Address | 2755 N LIGGETT RD, Castle Rock, CO, 80109 |
Authority & safety
| Operating Status | Active |
|---|---|
| Operation Type | Intrastate (Non-Hazmat) |
| Safety Rating | None on record — most carriers have not received a formal FMCSA safety rating. |
| Hazmat Flag | false |
Safety ratings: S = Satisfactory, C = Conditional, U = Unsatisfactory. A carrier with no rating has not been through a full FMCSA compliance review — this is common and not itself a red flag.
Fleet & operations
| Power Units (trucks) | 8 |
|---|---|
| Drivers | 11 |
| Recent Annual Mileage | 50 |
| Last MCS-150 Filing | 14-MAR-25 |
HIER DRILLING CO operates 8 power units — a larger fleet than 93% of carriers registered in CO.
Other carriers in Castle Rock, CO
- DOUGLAS COUNTY SCHOOL DISTRICT — USDOT 1378849, 263 power units
- DOUGLAS COUNTY GOVERNMENT — USDOT 1144586, 63 power units
- COLORADO POWERLINE INC — USDOT 1599073, 51 power units
- COLORADO PUMP SERVICE & SUPPLY CO — USDOT 1310792, 11 power units
- ADVANCED FLOOR CONCEPTS LLC — USDOT 1134277, 10 power units
Browse all carriers in Castle Rock, CO or all CO carriers.