California contractor license
TRI-VALLEY DRILLING SERVICE INC
- C57 Well Drilling
- C-61 / D09 Drilling, Blasting And Oil Field Work
TRI-VALLEY DRILLING SERVICE INC is a C57 Well Drilling and C-61 / D09 Drilling, Blasting And Oil Field Work contractor in Ventura, Ventura County, licensed in California for 33 years (since 1993). As of Apr 10, 2026, the license is active with an expiration date of May 31, 2027 on record and a license bond is on file.
TRI-VALLEY DRILLING SERVICE INCC57 Well Drilling · C-61 / D09 Drilling, Blasting And Oil Field Work · checked Apr 10, 2026
ActiveLicense number#672005
Licensed sinceMay 27, 1993
Years licensed33 years
Expiration on recordMay 31, 2027
City and countyVentura, Ventura County
License bondOn file
ProjectsNone on file
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Source: California Contractors State License Board (CSLB) and City of Los Angeles permit records. Last updated Apr 10, 2026.