# Relationship history for MSHA mine 1512334

Current hierarchy: **Bob  Belcher → T M Fuels Inc → Tm Fuels Inc**

- 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 → Tm Fuels Inc; 1950-01-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Jericol Mining Inc → Tm Fuels Inc; 1980-05-01 to 1990-12-20; source msha-controller-operator-history
- **controller_controls_operator:** James A  Sigmon → Jericol Mining Inc; 1980-05-01 to 1990-12-20; source msha-controller-operator-history
- **controller_controls_mine:** Bob  Belcher → Tm Fuels Inc; 1990-10-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Big Dog Coal Company Inc → Tm Fuels Inc; 1990-12-21 to 1994-04-04; source msha-controller-operator-history
- **controller_controls_mine:** Hicks Robert A → Tm Fuels Inc; 1990-12-21 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Hicks Robert A → Big Dog Coal Company Inc; 1990-12-21 to 1994-04-04; source msha-controller-operator-history
- **operator_operates_mine:** T M Fuels Inc → Tm Fuels Inc; 1994-04-05 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Bob  Belcher → T M Fuels Inc; 1994-04-05 to current/open; source msha-controller-operator-history