# Relationship history for MSHA mine 1517992

Current hierarchy: **Clyde  Meenach; Suzette  Meenach → K & M Energy Inc → K & M Energy Inc**

- 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:** K & M Energy Inc → K & M Energy Inc; 1997-10-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Clyde  Meenach  et al → K & M Energy Inc; 1997-10-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Clyde  Meenach  et al → K & M Energy Inc; 1997-10-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Suzette  Meenach et al → K & M Energy Inc; 1997-10-01 to current/open; source msha-controller-operator-history