# Relationship history for MSHA mine 4105453

Current hierarchy: **Robert Aaron Myers; Robert Matt Nobles → Nobles Road Construction, Inc. → Eastland 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

- **controller_controls_mine:** Bobby R  Nobles et al → Eastland Pit; 2003-01-05 to 2025-03-31; source msha-controller-operator-history
- **operator_operates_mine:** Nobles Road Construction, Inc. → Eastland Pit; 2019-08-19 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Bobby R  Nobles et al → Nobles Road Construction, Inc.; 2019-08-19 to 2025-03-31; source msha-controller-operator-history
- **controller_controls_mine:** Robert Matt Nobles et al → Eastland Pit; 2025-04-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Robert Matt Nobles et al → Nobles Road Construction, Inc.; 2025-04-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Robert Aaron Myers et al → Nobles Road Construction, Inc.; 2025-04-01 to current/open; source msha-controller-operator-history