# Relationship history for MSHA mine 1508195

Current hierarchy: **James L  Griffith → Cpg Inc → Bear Branch 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: 2026-10-17T05:35:58.500035+00:00

## Valid-time edges

- **operator_operates_mine:** Bear Branch Coal Company → Bear Branch Mine; 1975-04-01 to 1984-05-01; source msha-controller-operator-history
- **controller_controls_mine:** Price Bobby Lee → Bear Branch Mine; 1975-04-01 to 1984-05-01; source msha-controller-operator-history
- **controller_controls_operator:** Price Bobby Lee → Bear Branch Coal Company; 1975-04-01 to 1984-05-01; source msha-controller-operator-history
- **operator_operates_mine:** Cpg Inc → Bear Branch Mine; 1984-05-02 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** James L  Griffith et al → Bear Branch Mine; 1984-05-02 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** James L  Griffith et al → Cpg Inc; 1984-05-02 to current/open; source msha-controller-operator-history