# Relationship history for MSHA mine 3608341

Current hierarchy: **Jerry W  Lucas Jr → R & K Coal Company Inc → Primrose Slope**

- 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:** Jerry W  Lucas Jr → Primrose Slope; 1987-11-18 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** C & C Coal Company → Primrose Slope; 1992-05-01 to 1994-08-21; source msha-controller-operator-history
- **controller_controls_mine:** Charles  Cress → Primrose Slope; 1992-05-01 to 1994-08-21; source msha-controller-operator-history
- **controller_controls_operator:** Charles  Cress → C & C Coal Company; 1992-05-01 to 1994-08-21; source msha-controller-operator-history
- **operator_operates_mine:** D & D Coal Company → Primrose Slope; 1994-08-22 to 2007-11-18; source msha-controller-operator-history
- **controller_controls_mine:** Darryl W  Lucas Sr → Primrose Slope; 1994-08-22 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Darryl W  Lucas Sr → D & D Coal Company; 1994-08-22 to 2007-11-18; source msha-controller-operator-history
- **operator_operates_mine:** R & K Coal Company Inc → Primrose Slope; 2007-11-19 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Jerry W  Lucas Jr → R & K Coal Company Inc; 2007-11-19 to current/open; source msha-controller-operator-history