# Relationship history for MSHA mine 4607284

Current hierarchy: **Stephen  Hairston → Kazin Coal Inc → 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:** Compton Kennie D → No 1; 1986-10-30 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Arb Mining Inc → No 1; 1987-04-01 to 1987-08-31; source msha-controller-operator-history
- **controller_controls_mine:** Breeden Elden H → No 1; 1987-04-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Breeden Elden H → Arb Mining Inc; 1987-04-01 to 1987-08-31; source msha-controller-operator-history
- **operator_operates_mine:** Blue Cod Coal Inc → No 1; 1987-09-01 to 1988-11-01; source msha-controller-operator-history
- **controller_controls_mine:** Harvey Ervin → No 1; 1987-09-01 to 1988-11-01; source msha-controller-operator-history
- **controller_controls_operator:** Harvey Ervin → Blue Cod Coal Inc; 1987-09-01 to 1988-11-01; source msha-controller-operator-history
- **operator_operates_mine:** Southern Coal & Bituminous Inc → No 1; 1988-11-02 to 1989-04-16; source msha-controller-operator-history
- **controller_controls_mine:** Dorsey Wiley E → No 1; 1988-11-02 to 1989-04-16; source msha-controller-operator-history
- **controller_controls_operator:** Dorsey Wiley E → Southern Coal & Bituminous Inc; 1988-11-02 to 1989-04-16; source msha-controller-operator-history
- **operator_operates_mine:** War Eagle Construction Company Inc → No 1; 1989-04-17 to 1992-07-15; source msha-controller-operator-history
- **controller_controls_operator:** Compton Kennie D → War Eagle Construction Company Inc; 1989-04-17 to 1992-07-15; source msha-controller-operator-history
- **controller_controls_mine:** Stephen  Hairston → No 1; 1992-02-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Kazin Coal Inc → No 1; 1992-07-16 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Stephen  Hairston → Kazin Coal Inc; 1992-07-16 to current/open; source msha-controller-operator-history