# Relationship history for MSHA mine 4406322

Current hierarchy: **Metinvest B V → Kentar Energy Company → Mine No 1**

- 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:** Edward  Horn → Mine No 1; 1950-01-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Prestige Coal Inc → Mine No 1; 1986-09-01 to 1991-06-11; source msha-controller-operator-history
- **controller_controls_mine:** Tolbert P  Mullins → Mine No 1; 1986-09-01 to 1991-06-11; source msha-controller-operator-history
- **controller_controls_operator:** Tolbert P  Mullins → Prestige Coal Inc; 1986-09-01 to 1991-06-11; source msha-controller-operator-history
- **operator_operates_mine:** Horn Construction Company Inc → Mine No 1; 1991-06-12 to 2000-05-08; source msha-controller-operator-history
- **controller_controls_operator:** Edward  Horn → Horn Construction Company Inc; 1991-06-12 to 2000-05-08; source msha-controller-operator-history
- **operator_operates_mine:** Kentar Energy Company → Mine No 1; 2000-05-09 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Kenneth L  Stacy → Mine No 1; 2000-05-09 to 2006-03-22; source msha-controller-operator-history
- **controller_controls_operator:** Kenneth L  Stacy → Kentar Energy Company; 2000-05-09 to 2006-03-22; source msha-controller-operator-history
- **controller_controls_mine:** United  Company → Mine No 1; 2006-03-23 to 2009-04-29; source msha-controller-operator-history
- **controller_controls_operator:** United  Company → Kentar Energy Company; 2006-03-23 to 2009-04-29; source msha-controller-operator-history
- **controller_controls_mine:** Metinvest B V → Mine No 1; 2009-04-30 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Metinvest B V → Kentar Energy Company; 2009-04-30 to current/open; source msha-controller-operator-history