# Relationship history for MSHA mine 1516805

Current hierarchy: **Charles  Collins → Calvary Coal Company Inc → Pup'S Branch #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:** Andalex Resources B V → Pup'S Branch #1; 1950-01-01 to 2006-08-08; source msha-controller-operator-history
- **operator_operates_mine:** Andalex Resources Inc → Pup'S Branch #1; 1990-01-01 to 1992-02-04; source msha-controller-operator-history
- **controller_controls_operator:** Andalex Resources B V → Andalex Resources Inc; 1990-01-01 to 1992-02-04; source msha-controller-operator-history
- **operator_operates_mine:** Calvary Coal Company Inc → Pup'S Branch #1; 1992-02-05 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Charles  Collins → Pup'S Branch #1; 1992-02-05 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Charles  Collins → Calvary Coal Company Inc; 1992-02-05 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Robert E  Murray → Pup'S Branch #1; 2006-08-09 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Robert E  Murray → Andalex Resources Inc; 2006-08-09 to 1992-02-04; source msha-controller-operator-history