# Relationship history for MSHA mine 1518890

Current hierarchy: **John  Stone → Stacy Equipment and Repairs, Incorporated → Southeastern Auger No. 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: 2026-10-17T05:35:58.500035+00:00

## Valid-time edges

- **operator_operates_mine:** Southeastern Coal Inc. → Southeastern Auger No. 1; 2005-06-21 to 2026-02-11; source msha-controller-operator-history
- **controller_controls_mine:** Kenes P  Roberts → Southeastern Auger No. 1; 2005-06-21 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Kenes P  Roberts → Southeastern Coal Inc.; 2005-06-21 to 2026-02-11; source msha-controller-operator-history
- **controller_controls_mine:** John  Stone → Southeastern Auger No. 1; 2024-02-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Stacy Equipment and Repairs, Incorporated → Southeastern Auger No. 1; 2026-02-12 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** John  Stone → Stacy Equipment and Repairs, Incorporated; 2026-02-12 to current/open; source msha-controller-operator-history