1. Operational Oversight: Oversee daily drilling, completion, or workover activities to ensure technical procedures are properly executed by the rig contractor. 2. Safety (HSE): Serve as the ultimate authority in upholding a safety culture, ensuring compliance with environmental regulations, and leading emergency response on-site 3. Cost Management: Control daily expenses, approve vendor timesheets, and ensure efficient resource utilization to avoid cost overruns 4. Reporting: Prepare accurate daily Drilling Reports on work progress, material usage, and incidents to headquarters [1, 5]. Logistics Coordination: Arrange the arrival schedules of crews, equipment, and third-party materials (such as cement or logging services) to avoid wasted waiting time (Non-Productive Time) 5. Decision Making: Provide direct technical instructions when field challenges arise, such as mechanical issues or unexpected rock formations

MPD, IADC, Foet