# Relationship history for MSHA mine 4601409

Current hierarchy: **Usx Corp → U S Steel Mining Company Llc → Seneca**

- 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:** Consolidation Coal Company → Seneca; 1950-01-01 to 1985-03-12; source msha-controller-operator-history
- **controller_controls_mine:** CONSOL Energy Inc → Seneca; 1950-01-01 to 2013-12-04; source msha-controller-operator-history
- **controller_controls_operator:** CONSOL Energy Inc → Consolidation Coal Company; 1950-01-01 to 1985-03-12; source msha-controller-operator-history
- **controller_controls_mine:** Usx Corp → Seneca; 1950-01-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** U S Steel Mining Company Llc → Seneca; 1985-03-13 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Usx Corp → U S Steel Mining Company Llc; 1985-03-13 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Robert E  Murray → Seneca; 2013-12-05 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Robert E  Murray → Consolidation Coal Company; 2013-12-05 to 1985-03-12; source msha-controller-operator-history