# Relationship history for MSHA mine 3402248

Current hierarchy: **Miguel  Gonzalez → Rocklahoma llc → Martin #1**

- 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:** Miguel  Gonzalez → Martin #1; 2022-03-08 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Rocklahoma llc → Martin #1; 2025-04-20 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Miguel  Gonzalez → Rocklahoma llc; 2025-04-20 to current/open; source msha-controller-operator-history