# Relationship history for MSHA mine 3609476

Current hierarchy: **James E  Shingara Sr; Thomas D  Shingara; Albert  Shingara → J A T Mining → J A T Strippings**

- 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:** Shingara Robert R → J A T Strippings; 1979-02-12 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Chestnut Coal Co → J A T Strippings; 2006-10-26 to 2009-02-04; source msha-controller-operator-history
- **controller_controls_operator:** Shingara Robert R → Chestnut Coal Co; 2006-10-26 to 2009-02-04; source msha-controller-operator-history
- **operator_operates_mine:** J A T Mining → J A T Strippings; 2009-02-05 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** James E  Shingara Sr  et al → J A T Strippings; 2009-02-05 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** James E  Shingara Sr  et al → J A T Mining; 2009-02-05 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Albert  Shingara  et al → J A T Mining; 2009-02-05 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Thomas D  Shingara  et al → J A T Mining; 2009-02-05 to current/open; source msha-controller-operator-history