# Relationship history for MSHA mine 1516606

Current hierarchy: **Clearwater Natural Resources LP → Miller Bros Coal LLC → Combs Branch Job**

- 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:** Robert W  Miller Et Al → Combs Branch Job; 1981-07-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Miller Brothers Construction Inc → Combs Branch Job; 1989-04-01 to 2005-08-01; source msha-controller-operator-history
- **controller_controls_operator:** Robert W  Miller Et Al → Miller Brothers Construction Inc; 1989-04-01 to 2005-08-01; source msha-controller-operator-history
- **controller_controls_operator:** Dean  Miller Et Al → Miller Brothers Construction Inc; 1989-04-01 to 2005-08-01; source msha-controller-operator-history
- **operator_operates_mine:** Miller Bros Coal LLC → Combs Branch Job; 2005-08-02 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Clearwater Natural Resources LP → Combs Branch Job; 2005-08-02 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Clearwater Natural Resources LP → Miller Bros Coal LLC; 2005-08-02 to current/open; source msha-controller-operator-history