# Relationship history for MSHA mine 0102951

Current hierarchy: **Otis R  Robison Jr → R J R Mining Company Inc → Majestic Mine No. 2**

- Valid-time bounds: inclusive, date granularity
- Null end: open-ended in the upstream history row; not independent proof of present control
- Transaction-time observation: 2026-10-17T05:35:58.500035+00:00

## Valid-time edges

- **controller_controls_mine:** Blossom  Nelson et al → Majestic Mine No. 2; 1991-03-01 to 2019-10-14; source msha-controller-operator-history
- **operator_operates_mine:** R J R Mining Company Inc → Majestic Mine No. 2; 1992-04-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Blossom  Nelson et al → R J R Mining Company Inc; 1992-04-01 to 2019-10-14; source msha-controller-operator-history
- **controller_controls_operator:** Randy C  Johnson et al → R J R Mining Company Inc; 1992-04-01 to 2019-10-14; source msha-controller-operator-history
- **controller_controls_mine:** Otis R Robison Jr et al → Majestic Mine No. 2; 2019-10-15 to 2020-02-17; source msha-controller-operator-history
- **controller_controls_operator:** Otis R Robison Jr et al → R J R Mining Company Inc; 2019-10-15 to 2020-02-17; source msha-controller-operator-history
- **controller_controls_operator:** Melvin  Bailey et al → R J R Mining Company Inc; 2019-10-15 to 2020-02-17; source msha-controller-operator-history
- **controller_controls_operator:** Randy  Johnson et al → R J R Mining Company Inc; 2019-10-15 to 2020-02-17; source msha-controller-operator-history
- **controller_controls_mine:** Otis R Robison Jr. et al → Majestic Mine No. 2; 2020-02-18 to 2020-07-21; source msha-controller-operator-history
- **controller_controls_operator:** Otis R Robison Jr. et al → R J R Mining Company Inc; 2020-02-18 to 2020-07-21; source msha-controller-operator-history
- **controller_controls_operator:** Melvin  Bailey et al → R J R Mining Company Inc; 2020-02-18 to 2020-07-21; source msha-controller-operator-history
- **controller_controls_mine:** Otis R  Robison Jr → Majestic Mine No. 2; 2020-07-22 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Otis R  Robison Jr → R J R Mining Company Inc; 2020-07-22 to current/open; source msha-controller-operator-history