Limited specialty: drilling, blasting and oil field works in Ventura, CA

4 licenses with the C-61/D-9 classification list Ventura (Ventura County) as their address with the state, 4 of them active. Active licenses with nothing flagged come first.

• ✓Clifton O SimonsonA · C-61/D-9 · HAZ · #965312 Ventura · Ventura County Active
• ✓Tri-Valley Drilling Service IncC-57 · C-61/D-9 · #672005 Ventura · Ventura County Active
• ✓Western Wireline IncC-61/D-9 · #832430 Ventura · Ventura County Active
• !CA Well Services LLCA · C-61/D-9 · #1125206 Ventura · Ventura County Active Workers' comp suspension pending

Source: CSLB license file, Nov 8, 2026All trades in Ventura