| 1. | Repair and maintain automotive and drilling equipment, using hand tools. |
| 2. | Observe and monitor equipment operation during the extraction process in order to detect any problems. |
| 3. | Drive moving equipment in order to transport materials and parts to excavation sites. |
| 4. | Clean up work areas and remove debris after extraction activities are complete. |
| 5. | Organize materials in order to prepare for use. |
| 6. | Provide assistance to extraction craft workers such as earth drillers and derrick operators. |
| 7. | Dismantle extracting and boring equipment used for excavation, using hand tools. |
| 8. | Unload materials, devices and machine parts, using hand tools. |
| 9. | Load materials into well holes or into equipment, using hand tools. |
| 10. | Signal workers to start geological material extraction or boring. |
| 11. | Clean and prepare sites for excavation or boring. |
| 12. | Set up and adjust equipment used to excavate geological materials. |
| 13. | Collect and examine geological matter, using hand tools and testing devices. |