# Relationship history for MSHA mine 4405544

Current hierarchy: **Ricky L  Owens → Four-O-Mining Company Inc → Mine No 6**

- 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:** Coleman Emerlene (Merlene) → Mine No 6; 1950-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Omalene  Deel et al → Mine No 6; 1975-04-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Stoney Lee Coal Company → Mine No 6; 1980-11-01 to 1982-05-06; source msha-controller-operator-history
- **controller_controls_mine:** Deel Nubern & Arnie → Mine No 6; 1980-11-01 to 1982-05-06; source msha-controller-operator-history
- **controller_controls_operator:** Deel Nubern & Arnie → Stoney Lee Coal Company; 1980-11-01 to 1982-05-06; source msha-controller-operator-history
- **operator_operates_mine:** Golden Chip Coal Company Inc → Mine No 6; 1982-05-07 to 1986-07-09; source msha-controller-operator-history
- **controller_controls_operator:** Omalene  Deel et al → Golden Chip Coal Company Inc; 1982-05-07 to 1986-07-09; source msha-controller-operator-history
- **controller_controls_mine:** Ricky L  Owens → Mine No 6; 1982-06-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Coleman & Yates Coal Company Inc → Mine No 6; 1986-07-10 to 1997-04-21; source msha-controller-operator-history
- **controller_controls_operator:** Coleman Emerlene (Merlene) → Coleman & Yates Coal Company Inc; 1986-07-10 to 1997-04-21; source msha-controller-operator-history
- **operator_operates_mine:** Four-O-Mining Company Inc → Mine No 6; 1997-04-22 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Ricky L  Owens → Four-O-Mining Company Inc; 1997-04-22 to current/open; source msha-controller-operator-history