# Relationship history for MSHA mine 0102872

Current hierarchy: **Randy C  Johnson; Blossom  Nelson → New Castle Mining Inc → Five Mile Creek**

- 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:** New Castle Mining Inc → Five Mile Creek; 1990-09-01 to 1991-01-31; source msha-controller-operator-history
- **controller_controls_mine:** Otis R  Robison Jr → Five Mile Creek; 1990-09-01 to 1991-03-28; source msha-controller-operator-history
- **controller_controls_operator:** Otis R  Robison Jr → New Castle Mining Inc; 1990-09-01 to 1991-01-31; source msha-controller-operator-history
- **operator_operates_mine:** New Castle Mining Inc → Five Mile Creek; 1991-02-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Blossom  Nelson et al → Five Mile Creek; 1991-02-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Blossom  Nelson et al → New Castle Mining Inc; 1991-02-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Randy C  Johnson et al → New Castle Mining Inc; 1991-02-01 to current/open; source msha-controller-operator-history