# Relationship history for MSHA mine 4103173

Current hierarchy: **Mildred E (Beth)  Moody → Moody Sand Pit → Moody Sand 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:** Hester Materials → Moody Sand Pit; 1983-06-01 to 1986-01-13; source msha-controller-operator-history
- **controller_controls_mine:** Paul  Hester → Moody Sand Pit; 1983-06-01 to 1986-01-13; source msha-controller-operator-history
- **controller_controls_operator:** Paul  Hester → Hester Materials; 1983-06-01 to 1986-01-13; source msha-controller-operator-history
- **operator_operates_mine:** Hesco Sand Pit → Moody Sand Pit; 1986-01-14 to 1986-04-22; source msha-controller-operator-history
- **controller_controls_mine:** Robert W  Hester → Moody Sand Pit; 1986-01-14 to 1986-04-22; source msha-controller-operator-history
- **controller_controls_operator:** Robert W  Hester → Hesco Sand Pit; 1986-01-14 to 1986-04-22; source msha-controller-operator-history
- **operator_operates_mine:** Ekp Inc → Moody Sand Pit; 1986-04-23 to 1994-09-18; source msha-controller-operator-history
- **controller_controls_mine:** Pat  Stahl → Moody Sand Pit; 1986-04-23 to 1994-09-18; source msha-controller-operator-history
- **controller_controls_operator:** Pat  Stahl → Ekp Inc; 1986-04-23 to 1994-09-18; source msha-controller-operator-history
- **operator_operates_mine:** Moody Sand Pit → Moody Sand Pit; 1994-09-19 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Mildred E (Beth)  Moody → Moody Sand Pit; 1994-09-19 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Mildred E (Beth)  Moody → Moody Sand Pit; 1994-09-19 to current/open; source msha-controller-operator-history