# Relationship history for MSHA mine 1504427

Current hierarchy: **Bill  Detherage → Materials Inc → Moss Tipple**

- 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:** Moss Coal Company Inc → Moss Tipple; 1950-01-01 to 1983-10-19; source msha-controller-operator-history
- **controller_controls_mine:** Mc Ghee Jack → Moss Tipple; 1950-01-01 to 1983-10-19; source msha-controller-operator-history
- **controller_controls_operator:** Mc Ghee Jack → Moss Coal Company Inc; 1950-01-01 to 1983-10-19; source msha-controller-operator-history
- **operator_operates_mine:** Coal Technology Corp → Moss Tipple; 1983-10-20 to 1985-03-31; source msha-controller-operator-history
- **controller_controls_mine:** Anderson Dan → Moss Tipple; 1983-10-20 to 1985-03-31; source msha-controller-operator-history
- **controller_controls_operator:** Anderson Dan → Coal Technology Corp; 1983-10-20 to 1985-03-31; source msha-controller-operator-history
- **operator_operates_mine:** Balmont Corp → Moss Tipple; 1985-04-01 to 1988-09-19; source msha-controller-operator-history
- **controller_controls_mine:** John P  Baugues Sr → Moss Tipple; 1985-04-01 to 1992-12-13; source msha-controller-operator-history
- **controller_controls_operator:** John P  Baugues Sr → Balmont Corp; 1985-04-01 to 1988-09-19; source msha-controller-operator-history
- **operator_operates_mine:** Materials Inc → Moss Tipple; 1988-09-20 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Bill  Detherage → Moss Tipple; 1988-09-20 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Bill  Detherage → Materials Inc; 1988-09-20 to current/open; source msha-controller-operator-history