# Relationship history for MSHA mine 4607123

Current hierarchy: **Falk Connie → C P & S Inc → Mudlick Deep Mine**

- 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

- **controller_controls_mine:** Westmoreland Coal Company → Mudlick Deep Mine; 1984-12-21 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** C & C Mining Inc → Mudlick Deep Mine; 1986-04-01 to 1987-01-05; source msha-controller-operator-history
- **controller_controls_mine:** Taylor Chester K & Ming Chung Chen → Mudlick Deep Mine; 1986-04-01 to 1987-01-05; source msha-controller-operator-history
- **controller_controls_operator:** Taylor Chester K & Ming Chung Chen → C & C Mining Inc; 1986-04-01 to 1987-01-05; source msha-controller-operator-history
- **operator_operates_mine:** Elk River Sewell Coal Company → Mudlick Deep Mine; 1987-01-06 to 1987-04-19; source msha-controller-operator-history
- **controller_controls_operator:** Westmoreland Coal Company → Elk River Sewell Coal Company; 1987-01-06 to 1987-04-19; source msha-controller-operator-history
- **operator_operates_mine:** C P & S Inc → Mudlick Deep Mine; 1987-04-20 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Falk Connie → Mudlick Deep Mine; 1987-04-20 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Falk Connie → C P & S Inc; 1987-04-20 to current/open; source msha-controller-operator-history