# Relationship history for MSHA mine 3609820

Current hierarchy: **Michael  Shingara, Jr. → Michael Shingara Coal Company LLC → No. 1 Strip**

- 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:** Michael Shingara Coal Co. → No. 1 Strip; 2010-01-12 to 2010-01-20; source msha-controller-operator-history
- **controller_controls_mine:** Michael  Shingara, Jr. → No. 1 Strip; 2010-01-12 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Michael  Shingara, Jr. → Michael Shingara Coal Co.; 2010-01-12 to 2010-01-20; source msha-controller-operator-history
- **operator_operates_mine:** Michael Shingara Coal Company LLC → No. 1 Strip; 2010-01-21 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Michael  Shingara, Jr. → No. 1 Strip; 2010-01-21 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Michael  Shingara, Jr. → Michael Shingara Coal Company LLC; 2010-01-21 to current/open; source msha-controller-operator-history