# Relationship history for MSHA mine 3609975

Current hierarchy: **2010 Irrevocable Kroh Family Trust → LAUREL PREP PLANT LLC → LAUREL  PLANT**

- 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:** JAZ Ventures LP et al → LAUREL  PLANT; 2011-09-07 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** LCT Energy, LP → LAUREL  PLANT; 2017-06-01 to 2022-07-31; source msha-controller-operator-history
- **controller_controls_operator:** JAZ Ventures LP et al → LCT Energy, LP; 2017-06-01 to 2022-07-31; source msha-controller-operator-history
- **operator_operates_mine:** Laurel Prep Plant LLC → LAUREL  PLANT; 2022-08-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** 2010 Irrevocable Kroh Family Trust → LAUREL  PLANT; 2022-08-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** 2010 Irrevocable Kroh Family Trust → Laurel Prep Plant LLC; 2022-08-01 to current/open; source msha-controller-operator-history