Class Code 6206
Oil/Gas Wells – Cementing/Acidizing/Fracturing; Vacuum Truck Svc/Gravel Packing
Class Code 6206 applies to oil and gas well service operations such as cementing, acidizing, hydraulic fracturing, vacuum truck service and gravel packing. This classification captures high-pressure, chemical-handling and well-control activities — the WCIRB pure premium for California effective Sept 1, 2026 is $2.939 per $100 of payroll.
What Class Code 6206 Covers
This classification covers on-site well service work where crews mix, pump and handle cement slurries, acid treatments, fracturing fluids and proppant for stimulation and gravel packing operations. It includes vacuum truck service connected to wellsite cleanup and solids removal and related equipment operation such as high-pressure pumping units, blenders, sand-handling systems and frac tanks. Work performed during set-up, breakdown and maintenance of service equipment at the wellsite, plus personnel who monitor well pressure and well control during these jobs, fall under this code. Routine office, sales or transportation-only activities away from the wellsite are generally excluded and should be separately classified.
Who It Applies To
- Oilfield service companies performing cementing, acidizing or fracturing
- Cementing and frac pump crews and supervisors
- Vacuum truck operators servicing wellsites and pits
- Gravel packing and sand-handling crews
- Third-party contractors hired for well stimulation or well cleanout
Common Job Duties
- Mixing and blending cement, acids and fracturing fluids on-site
- Operating high-pressure pump units and blender systems
- Loading, transporting and metering proppant (sand) and chemicals
- Monitoring well pressure, maintaining well-control equipment and choke operation
- Operating vacuum trucks to remove solids, water and drilling fluids
- Rigging, maintaining and troubleshooting hydraulic and pneumatic systems
- Performing wellsite cleanup, tank emptying and equipment washdown
Common Injury Risks
Understanding the $2.939 Rate
The pure premium of $2.939 per $100 of payroll is the WCIRB's expected loss cost for this class. Insurers multiply that base by their ratemaking factors and apply payroll to compute the premium; employers’ final cost is affected by their experience modification, payroll accuracy, classification splits, schedule credits/debits and state assessments.
Cal/OSHA Compliance Requirements
Cal/OSHA requires written safety programs and site-specific controls for work with hazardous chemicals and high-pressure systems under Title 8. Key areas of compliance for these operations include permit-required confined space procedures, respiratory protection and monitoring for H2S, hazardous communication (GHS) and chemical handling, lockout/tagout for energy isolation, hot work permits, and training on well-control and emergency response. Employers must maintain records, provide PPE, and implement medical surveillance when applicable (e.g., silica or respiratory exposures).
How Key HR Helps Employers Under Class Code 6206
A PEO like Key HR can help employers in this class reduce workers' comp costs by implementing targeted loss-control programs, delivering job-specific training (H2S, confined space, PPE, well-control), managing claims and return-to-work plans, and leveraging group buying power for insurance. Key HR also assists with payroll classification accuracy, safety audits at the wellsite, and documenting compliance to reduce audit exposure and potential premium adjustments.
Get a QuoteFrequently Asked Questions
Does Class Code 6206 include subcontractor pumpers or only direct employees?
Yes — employees and subcontractor crews performing covered on-site cementing, acidizing, fracturing, vacuum truck and gravel packing activities are typically assigned to Class Code 6206; administrative or transport-only subcontractors are usually classified separately.
What practical steps reduce claims and premiums for these operations?
Focus on documented well-control procedures, H2S monitoring and evacuation drills, confined-space entry permits, chemical handling/HazCom training, PPE enforcement, pre-job hazard analyses and preventative maintenance of high-pressure equipment; these reduce frequency and severity of claims and improve your experience modification.
Which Cal/OSHA trainings are most important for crews in this code?
Required and high-priority training includes permit-required confined space entry, respiratory protection and fit-testing, H2S awareness and response, hazardous communication, lockout/tagout, and task-specific training for high-pressure pump operation and rigging. Employers must keep training records and provide refresher training as conditions change.
Quick Facts
- Class Code
- 6206
- Classification
- Oil/Gas Wells – Cementing/Acidizing/Fracturing; Vacuum Truck Svc/Gravel Packing
- Pure Premium Rate
- $2.939 / $100 payroll
- Effective Date
- September 1, 2026
- Source
- WCIRB Approved Filing
Manage Workers' Comp Through a PEO
Key HR provides pay-as-you-go workers' comp for California employers — no large deposits, no audits, better rates.
Get a Quoteor call (800) 922-4133Ready to Simplify Workers' Comp for Class Code 6206?
Key HR provides California employers with pay-as-you-go workers' comp, HR compliance support, and payroll — all through one PEO partnership.