# Relationship history for MSHA mine 4604388

Current hierarchy: **Henry Paul  Kizer → Hansford Smokeless Collieries Inc → No 4 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

- **operator_operates_mine:** Beckley Basin Company Inc → No 4 Mine; 1974-12-01 to 1976-02-13; source msha-controller-operator-history
- **controller_controls_mine:** CSX Corp → No 4 Mine; 1974-12-01 to 1976-02-13; source msha-controller-operator-history
- **controller_controls_operator:** CSX Corp → Beckley Basin Company Inc; 1974-12-01 to 1976-02-13; source msha-controller-operator-history
- **operator_operates_mine:** Beckley Lick Run Company → No 4 Mine; 1976-02-14 to 1983-09-25; source msha-controller-operator-history
- **controller_controls_mine:** Assoc Technique De L'Importation Charbonniere → No 4 Mine; 1976-02-14 to 1983-09-28; source msha-controller-operator-history
- **controller_controls_operator:** Assoc Technique De L'Importation Charbonniere → Beckley Lick Run Company; 1976-02-14 to 1983-09-25; source msha-controller-operator-history
- **operator_operates_mine:** Beckley Lick Run Company → No 4 Mine; 1983-09-26 to 1987-08-31; source msha-controller-operator-history
- **controller_controls_mine:** CSX Corp → No 4 Mine; 1983-09-26 to 1987-10-05; source msha-controller-operator-history
- **controller_controls_operator:** CSX Corp → Beckley Lick Run Company; 1983-09-26 to 1987-08-31; source msha-controller-operator-history
- **controller_controls_mine:** Henry Paul  Kizer et al → No 4 Mine; 1985-09-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Hansford Smokeless Collieries Inc → No 4 Mine; 1987-09-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Henry Paul  Kizer et al → Hansford Smokeless Collieries Inc; 1987-09-01 to current/open; source msha-controller-operator-history