# Relationship history for MSHA mine 0404493

Current hierarchy: **Fegert Earl R & Peter E Galli → Galli Exploration Associates → Carr Mine**

- 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:** P R Development → Carr Mine; 1981-04-01 to 1983-09-11; source msha-controller-operator-history
- **controller_controls_mine:** Robuck Patrick & David Donnelley → Carr Mine; 1981-04-01 to 1983-09-11; source msha-controller-operator-history
- **controller_controls_operator:** Robuck Patrick & David Donnelley → P R Development; 1981-04-01 to 1983-09-11; source msha-controller-operator-history
- **operator_operates_mine:** Galli Exploration Associates → Carr Mine; 1983-09-12 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Fegert Earl R & Peter E Galli → Carr Mine; 1983-09-12 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Fegert Earl R & Peter E Galli → Galli Exploration Associates; 1983-09-12 to current/open; source msha-controller-operator-history