# Relationship history for MSHA mine 0203246

Current hierarchy: **Clay  Worst → The Old Wasp Mine → The Old Wasp Mine**

- 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:** The Old Wasp Mine → The Old Wasp Mine; 2009-04-27 to 2013-06-20; source msha-controller-operator-history
- **controller_controls_mine:** Clay  Worst → The Old Wasp Mine; 2009-04-27 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Clay  Worst → The Old Wasp Mine; 2009-04-27 to 2013-06-20; source msha-controller-operator-history
- **operator_operates_mine:** Apache Mining Services LLC → The Old Wasp Mine; 2013-06-21 to 2016-10-04; source msha-controller-operator-history
- **controller_controls_mine:** Jan  Ross → The Old Wasp Mine; 2013-06-21 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Jan  Ross → Apache Mining Services LLC; 2013-06-21 to 2016-10-04; source msha-controller-operator-history
- **operator_operates_mine:** The Old Wasp Mine → The Old Wasp Mine; 2016-10-05 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Clay  Worst → The Old Wasp Mine; 2016-10-05 to current/open; source msha-controller-operator-history