# Relationship history for MSHA mine 1512057

Current hierarchy: **James A  Sigmon → Jericol Mining Inc → Creech No 1**

- 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:** James A  Sigmon → Creech No 1; 1950-01-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Jericol Mining Inc → Creech No 1; 1979-10-01 to 1995-03-12; source msha-controller-operator-history
- **controller_controls_operator:** James A  Sigmon → Jericol Mining Inc; 1979-10-01 to 1995-03-12; source msha-controller-operator-history
- **controller_controls_mine:** Bob  Belcher → Creech No 1; 1990-10-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** T M Fuels Inc → Creech No 1; 1995-03-13 to 1995-06-14; source msha-controller-operator-history
- **controller_controls_operator:** Bob  Belcher → T M Fuels Inc; 1995-03-13 to 1995-06-14; source msha-controller-operator-history
- **operator_operates_mine:** Jericol Mining Inc → Creech No 1; 1995-06-15 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** James A  Sigmon → Jericol Mining Inc; 1995-06-15 to current/open; source msha-controller-operator-history