# Relationship history for MSHA mine 4604938

Current hierarchy: **Dulaney Lowell J → Braxton Minerals Inc → Mack Run Surface**

- 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:** Beasley Industries Inc → Mack Run Surface; 1950-01-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Peaker Run Coal Company Inc → Mack Run Surface; 1975-11-12 to 1989-06-06; source msha-controller-operator-history
- **controller_controls_operator:** Beasley Industries Inc → Peaker Run Coal Company Inc; 1975-11-12 to 1989-06-06; source msha-controller-operator-history
- **controller_controls_mine:** Dulaney Lowell J → Mack Run Surface; 1988-12-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Braxton Minerals Inc → Mack Run Surface; 1989-06-07 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Dulaney Lowell J → Braxton Minerals Inc; 1989-06-07 to current/open; source msha-controller-operator-history