# Relationship history for MSHA mine 4105332

Current hierarchy: **GCC SAB de CV → NM Energy LLC → Henderson 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:** Hunter Logistics → Henderson Pit; 2018-03-05 to 2026-07-13; source msha-controller-operator-history
- **controller_controls_mine:** Bobby  Robertson → Henderson Pit; 2018-03-05 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Bobby  Robertson → Hunter Logistics; 2018-03-05 to 2026-07-13; source msha-controller-operator-history
- **controller_controls_mine:** GCC SAB de CV → Henderson Pit; 2024-09-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** NM Energy LLC → Henderson Pit; 2026-07-14 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** GCC SAB de CV → NM Energy LLC; 2026-07-14 to current/open; source msha-controller-operator-history