| Characteristic | Churn and diamond drilling | Rotary reverse and circulation drilling | Percussion drilling, other drilling, and trenching |
|---|---|---|---|
| - | - | - | - |
| - | - | - | - |
| - | - | - | - |
| - | - | - | - |
| - | - | - | - |
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Source
Release date
February 2020
Region
United States
Survey time period
2015
Supplementary notes
Absent values correspond to data that has been withheld in order to prevent disclosing proprietary company data.
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