# Relationship history for MSHA mine 0102505

Current hierarchy: **Chamblee Derrell → Black Creek Land & Mineral Inc → Cordell Creek**

- 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:** John C  Fay Jr → Cordell Creek; 1950-01-01 to 1995-04-30; source msha-controller-operator-history
- **operator_operates_mine:** Mc Wane Coal Company Inc → Cordell Creek; 1982-09-01 to 1995-04-30; source msha-controller-operator-history
- **controller_controls_operator:** John C  Fay Jr → Mc Wane Coal Company Inc; 1982-09-01 to 1995-04-30; source msha-controller-operator-history
- **operator_operates_mine:** Black Creek Land & Mineral Inc → Cordell Creek; 1995-05-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Chamblee Derrell Et Al → Cordell Creek; 1995-05-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Chamblee Derrell Et Al → Black Creek Land & Mineral Inc; 1995-05-01 to current/open; source msha-controller-operator-history