# Relationship history for MSHA mine 4403534

Current hierarchy: **Ratliff Arnold → Honaker Coal Company → No 1 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: 2026-10-13T11:19:05.459773+00:00

## Valid-time edges

- **controller_controls_mine:** Mc Clanahan Roy → No 1 Mine; 1950-01-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Energy Coal Corp → No 1 Mine; 1973-01-01 to 1975-07-16; source msha-controller-operator-history
- **controller_controls_mine:** Energy Coal Corp → No 1 Mine; 1973-01-01 to 1975-07-16; source msha-controller-operator-history
- **controller_controls_operator:** Energy Coal Corp → Energy Coal Corp; 1973-01-01 to 1975-07-16; source msha-controller-operator-history
- **operator_operates_mine:** R & S Coal Company → No 1 Mine; 1975-07-17 to 1975-10-03; source msha-controller-operator-history
- **controller_controls_mine:** Ratliff Arnold & Buster Street → No 1 Mine; 1975-07-17 to 1975-10-03; source msha-controller-operator-history
- **controller_controls_operator:** Ratliff Arnold & Buster Street → R & S Coal Company; 1975-07-17 to 1975-10-03; source msha-controller-operator-history
- **operator_operates_mine:** R M Coal Company → No 1 Mine; 1975-10-04 to 1975-11-20; source msha-controller-operator-history
- **controller_controls_operator:** Mc Clanahan Roy → R M Coal Company; 1975-10-04 to 1975-11-20; source msha-controller-operator-history
- **operator_operates_mine:** Honaker Coal Company → No 1 Mine; 1975-11-21 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Ratliff Arnold → No 1 Mine; 1975-11-21 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Ratliff Arnold → Honaker Coal Company; 1975-11-21 to current/open; source msha-controller-operator-history