# Relationship history for MSHA mine 1511926

Current hierarchy: **United  Company → Belfry Coal Corp → Tipple #8**

- 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:** United  Company → Tipple #8; 1977-09-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Palmetto Minerals → Tipple #8; 1979-06-01 to 1980-10-27; source msha-controller-operator-history
- **controller_controls_mine:** Ratliff Walter → Tipple #8; 1979-06-01 to 1980-10-27; source msha-controller-operator-history
- **controller_controls_operator:** Ratliff Walter → Palmetto Minerals; 1979-06-01 to 1980-10-27; source msha-controller-operator-history
- **operator_operates_mine:** Timco Coal Sales → Tipple #8; 1980-10-28 to 1987-09-14; source msha-controller-operator-history
- **controller_controls_mine:** Graham Glen E → Tipple #8; 1980-10-28 to 1987-09-14; source msha-controller-operator-history
- **controller_controls_operator:** Graham Glen E → Timco Coal Sales; 1980-10-28 to 1987-09-14; source msha-controller-operator-history
- **operator_operates_mine:** Genesis Mining Corp → Tipple #8; 1987-09-15 to 1988-04-17; source msha-controller-operator-history
- **controller_controls_mine:** Lowe Moses → Tipple #8; 1987-09-15 to 1988-04-17; source msha-controller-operator-history
- **controller_controls_operator:** Lowe Moses → Genesis Mining Corp; 1987-09-15 to 1988-04-17; source msha-controller-operator-history
- **operator_operates_mine:** Belfry Coal Corp → Tipple #8; 1988-04-18 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** United  Company → Belfry Coal Corp; 1988-04-18 to current/open; source msha-controller-operator-history