# Relationship history for MSHA mine 0202638

Current hierarchy: **Samuel W  Jessop → Double J Sand & Rock LLC → Double J Sand & Rock LLC**

- 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:** Double J Sand & Rock LLC → Double J Sand & Rock LLC; 1995-07-01 to 2009-01-05; source msha-controller-operator-history
- **controller_controls_mine:** Jim  Jones → Double J Sand & Rock LLC; 1995-07-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Jim  Jones → Double J Sand & Rock LLC; 1995-07-01 to 2009-01-05; source msha-controller-operator-history
- **operator_operates_mine:** Double J Sand & Rock LLC → Double J Sand & Rock LLC; 2009-01-06 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Samuel W  Jessop → Double J Sand & Rock LLC; 2009-01-06 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Samuel W  Jessop → Double J Sand & Rock LLC; 2009-01-06 to current/open; source msha-controller-operator-history