# Relationship history for MSHA mine 3502791

Current hierarchy: **Ronald D  Braxling → Braxling & Braxling Inc → Maco Pit**

- 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:** Braxling & Braxling Inc → Maco Pit; 1950-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Art  Braxling → Maco Pit; 1950-01-01 to 2014-05-31; source msha-controller-operator-history
- **controller_controls_operator:** Art  Braxling → Braxling & Braxling Inc; 1950-01-01 to 2014-05-31; source msha-controller-operator-history
- **controller_controls_mine:** Ronald D  Braxling → Maco Pit; 2014-06-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Ronald D  Braxling → Braxling & Braxling Inc; 2014-06-01 to current/open; source msha-controller-operator-history