MAHAFFEY DON H DRILLING CO operating as a corporation is licensed in California under CSLB number 139513. The license was first issued in 1953, putting the business at 73 years on the active CSLB roster. It carries a single CSLB classification: A — General Engineering Contractor. Records show an active surety bond on file with ARCH INSURANCE COMPANY and active workers' compensation coverage from TRAVELERS PROPERTY CASUALTY COMPANY OF AMERICA. The business is based in COMPTON, in Los Angeles County, California.