# Relationship history for MSHA mine 4608302

Current hierarchy: **Henry Paul  Kizer → Green Mountain Energy Inc → Sugar Camp**

- 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:** Henry Paul  Kizer et al → Sugar Camp; 1989-10-20 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Green Mountain Energy Inc → Sugar Camp; 1993-05-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Henry Paul  Kizer et al → Green Mountain Energy Inc; 1993-05-01 to current/open; source msha-controller-operator-history