# Relationship history for MSHA mine 1001311

Current hierarchy: **Scott R Neil → Haystack Mine Inc → Haystack 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:** Mabel Crofoot → Haystack Mine; 1950-01-01 to 1981-05-07; source msha-controller-operator-history
- **controller_controls_mine:** Crofoot Mabel → Haystack Mine; 1950-01-01 to 1981-05-07; source msha-controller-operator-history
- **controller_controls_operator:** Crofoot Mabel → Mabel Crofoot; 1950-01-01 to 1981-05-07; source msha-controller-operator-history
- **operator_operates_mine:** Haystack Mine Inc → Haystack Mine; 1981-05-08 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Scott R Neil → Haystack Mine; 1981-05-08 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Scott R Neil → Haystack Mine Inc; 1981-05-08 to current/open; source msha-controller-operator-history