Workers comp rates for code 6411: Oil/Gas Well Drilling
NCCI class code 6411 covers Oil/Gas Well Drilling in the mining industry. The filed rate in Washington is $0.329 per $100 payroll, per the state's most recent rate filing.
Also known as: Oil Well Driller · Gas Well Contractor
What does NCCI class code 6411 cover?
Class code 6411 classifies employees performing Oil/Gas Well Drilling, also known as Oil Well Driller, Gas Well Contractor. The NCCI classification system groups occupations by similar workplace exposure, loss-experience patterns, and operational characteristics. Code 6411 falls within the mining industry group and is filed in Washington.
NCCI's governing classification rules state that a single-classification employer with at least 51% of payroll in this occupation generally classifies all employees under code 6411, with two standard exceptions: clerical office work (segregated payroll records required, reported under code 8810) and outside sales / collectors (code 8742). If your operation has multiple distinct activities, ask your underwriter about a multi-class split before accepting a single-code rating.
Why code 6411 only appears in Washington
Some class codes are state-specials: classifications a single rating bureau maintains for an occupation that other states fold into broader codes. Code 6411 currently has a filed rate only in Washington ($0.329 per $100 payroll). If you operate in another state, your insurer will classify the same work under a different code, use the class-code finder to locate the equivalent for your state.
How to use this code 6411 rate data
- Identify the right state filing. Use the table below to find your state's filed rate. If your carrier is quoting at a higher rate, the difference is either schedule debit, EMR, deductible loading, or a state-fund surcharge, ask which.
- Calculate your effective rate. Effective rate = base rate × EMR ± schedule credit/debit ± deductible loading. Two carriers quoting code 6411 at the same base can vary 30%+ on effective rate after these adjustments.
- Build a 3-year EMR strategy. A 0.85 EMR cuts base rate by 15%; the difference between 0.85 and 1.25 EMR on the same code is a 47% premium difference. Frequency control (preventing every claim, even small ones) drives EMR more than severity control.
Code 6411 rates in all 1 states
| State | Code | Rate per $100 | vs peers | Source |
|---|---|---|---|---|
| Washington monopolistic | 6411 | $0.329 | - | view |
Bottom quartile (cheap) Mid Top quartile (expensive)
What types of claims drive code 6411 rates?
Workers comp rate filings for code 6411 reflect what's actually happening on the job, not just generic occupation hazard. NCCI publishes loss-cost analyses showing which injury categories account for the bulk of indemnity (lost-wage) and medical claim cost. For Oil/Gas Well Drilling, the top drivers are typically:
- Musculoskeletal strain, lifting, twisting, and repetitive motion, is the most-common claim type across occupations.
- Slips, trips, and falls on workplace surfaces account for 15-25% of typical workplace injuries.
- Struck-by objects, falling and moving items, produce significant medical-only and indemnity claims.
- Cumulative trauma conditions develop over years and produce long-tail claim costs in many occupations.
Targeting these drivers in your safety program produces the largest EMR improvement. Frequency control (preventing every claim, including small medical-only incidents) drives the modifier more than severity control. A documented written safety program addressing the top two drivers above is typically the highest-ROI intervention for employers paying for code 6411.
FAQs about NCCI 6411
What occupation is NCCI class code 6411?
Class code 6411 is "Oil/Gas Well Drilling" (also known as Oil Well Driller, Gas Well Contractor), in the mining industry. The code is filed in Washington.
What is the average workers comp rate for code 6411?
In Washington, the filed rate for code 6411 is $0.329 per $100 of payroll, per the state's most recent rate filing.
Why does code 6411 cost more in some states than others?
Workers comp rates reflect each state's loss experience for that occupation, the rating bureau's methodology (NCCI vs. independent), schedule rating credits, and the state's medical-cost inflation. Some states are monopolistic (only the state fund writes coverage) while others are open competitive markets.