# Relationship history for MSHA mine 2402793

Current hierarchy: **Ty L.  Balbach → Hillside Drilling &Rock Stabilization → Hillside Pit**

- Valid-time bounds: inclusive, date granularity
- Null end: open-ended in the upstream history row; not independent proof of present control
- Transaction-time observation: 2026-10-13T11:19:05.459773+00:00

## Valid-time edges

- **operator_operates_mine:** Paradine Mining → Hillside Pit; 2023-07-21 to 2023-09-10; source msha-controller-operator-history
- **controller_controls_mine:** Scott L Oldroyd → Hillside Pit; 2023-07-21 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Scott L Oldroyd → Paradine Mining; 2023-07-21 to 2023-09-10; source msha-controller-operator-history
- **operator_operates_mine:** Hillside Drilling &Rock Stabilization → Hillside Pit; 2023-09-11 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Ty L.  Balbach → Hillside Pit; 2023-09-11 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Ty L.  Balbach → Hillside Drilling &Rock Stabilization; 2023-09-11 to current/open; source msha-controller-operator-history