# Relationship history for MSHA mine 4608078

Current hierarchy: **Mc Court Loye → Jack Run Coal Corp Inc → Jack Run**

- 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:** Jack Run Coal Corp Inc → Jack Run; 1991-07-01 to 1993-04-05; source msha-controller-operator-history
- **controller_controls_mine:** Hardway Gordon-Aldon Short Et Al → Jack Run; 1991-07-01 to 1993-04-05; source msha-controller-operator-history
- **controller_controls_operator:** Hardway Gordon-Aldon Short Et Al → Jack Run Coal Corp Inc; 1991-07-01 to 1993-04-05; source msha-controller-operator-history
- **operator_operates_mine:** Jack Run Coal Corp Inc → Jack Run; 1993-04-06 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Mc Court Loye → Jack Run; 1993-04-06 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Mc Court Loye → Jack Run Coal Corp Inc; 1993-04-06 to current/open; source msha-controller-operator-history