# Relationship history for MSHA mine 4606196

Current hierarchy: **Mooney James S Sr → Elm Coal Corp → No 2 Surface**

- 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:** Union Carbide Corp → No 2 Surface; 1950-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Mooney James S Sr Et Al → No 2 Surface; 1973-08-02 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Union Carbide Corp-Metals Division → No 2 Surface; 1980-03-01 to 1981-08-26; source msha-controller-operator-history
- **controller_controls_operator:** Union Carbide Corp → Union Carbide Corp-Metals Division; 1980-03-01 to 1981-08-26; source msha-controller-operator-history
- **operator_operates_mine:** Elm Coal Corp → No 2 Surface; 1981-08-27 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Mooney James S Sr Et Al → Elm Coal Corp; 1981-08-27 to current/open; source msha-controller-operator-history