# Relationship history for MSHA mine 4606735

Current hierarchy: **Iracoal Incorporated → Lodestar Energy Inc → Carlisle Loadout**

- 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:** Graybeal Carl N & Jack L Williams → Carlisle Loadout; 1981-12-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** G & W Equipment Leasing Inc → Carlisle Loadout; 1984-01-01 to 1989-10-15; source msha-controller-operator-history
- **controller_controls_operator:** Graybeal Carl N & Jack L Williams → G & W Equipment Leasing Inc; 1984-01-01 to 1989-10-15; source msha-controller-operator-history
- **controller_controls_mine:** Jack L  Williams → Carlisle Loadout; 1989-01-26 to 1990-10-17; source msha-controller-operator-history
- **operator_operates_mine:** Pax Mining Company → Carlisle Loadout; 1989-10-16 to 1990-10-17; source msha-controller-operator-history
- **controller_controls_operator:** Jack L  Williams → Pax Mining Company; 1989-10-16 to 1990-10-17; source msha-controller-operator-history
- **operator_operates_mine:** Costain Mining Inc → Carlisle Loadout; 1990-10-18 to 1997-01-30; source msha-controller-operator-history
- **controller_controls_mine:** Costain Group PLC → Carlisle Loadout; 1990-10-18 to 1997-01-30; source msha-controller-operator-history
- **controller_controls_operator:** Costain Group PLC → Costain Mining Inc; 1990-10-18 to 1997-01-30; source msha-controller-operator-history
- **operator_operates_mine:** Lodestar Energy Inc → Carlisle Loadout; 1997-01-31 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Iracoal Incorporated → Carlisle Loadout; 1997-01-31 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Iracoal Incorporated → Lodestar Energy Inc; 1997-01-31 to current/open; source msha-controller-operator-history