# Relationship history for MSHA mine 2601764

Current hierarchy: **Peter  Candy → Walker Lake Minerals Inc → Dead Horse Wells**

- Valid-time bounds: inclusive, date granularity
- Null end: open-ended in the upstream history row; not independent proof of present control
- Transaction-time observation: 2026-10-17T05:35:58.500035+00:00

## Valid-time edges

- **controller_controls_mine:** Aztec Royalty Inc → Dead Horse Wells; 1980-04-01 to 1982-02-02; source msha-controller-operator-history
- **operator_operates_mine:** Empire Minerals → Dead Horse Wells; 1981-06-01 to 1982-02-02; source msha-controller-operator-history
- **controller_controls_operator:** Aztec Royalty Inc → Empire Minerals; 1981-06-01 to 1982-02-02; source msha-controller-operator-history
- **operator_operates_mine:** Walker Lake Minerals Inc → Dead Horse Wells; 1982-02-03 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Peter  Candy → Dead Horse Wells; 1982-02-03 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Peter  Candy → Walker Lake Minerals Inc; 1982-02-03 to current/open; source msha-controller-operator-history