CLARKE DRILLING operating as a sole owner is licensed in California under CSLB number 956069. The license was first issued in 2010, putting the business at 16 years on the active CSLB roster. It carries a single CSLB classification: C-57 — Well Drilling Contractor. Records show an active surety bond on file with NORTH RIVER INSURANCE COMPANY (THE) and an exempt workers' compensation status (no employees on payroll). The business is based in COVELO, in Mendocino County, California.