# Relationship history for MSHA mine 4103890

Current hierarchy: **Larry  Mann → Valley Aggregate → LEMENS**

- 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

- **operator_operates_mine:** Triple W Ranch → LEMENS; 1996-02-01 to 1998-02-02; source msha-controller-operator-history
- **controller_controls_mine:** Larry V  Witt et al → LEMENS; 1996-02-01 to 1998-02-02; source msha-controller-operator-history
- **controller_controls_operator:** Larry V  Witt et al → Triple W Ranch; 1996-02-01 to 1998-02-02; source msha-controller-operator-history
- **operator_operates_mine:** Valley Aggregate → LEMENS; 1998-02-03 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Larry  Mann → LEMENS; 1998-02-03 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Larry  Mann → Valley Aggregate; 1998-02-03 to current/open; source msha-controller-operator-history