# Relationship history for MSHA mine 1518172

Current hierarchy: **John  Keeton → K H P Mining Inc → Khp Mining Inc #3**

- 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:** John  Keeton et al → Khp Mining Inc #3; 1998-08-11 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** K H P Mining Inc → Khp Mining Inc #3; 1999-06-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** John  Keeton et al → K H P Mining Inc; 1999-06-01 to current/open; source msha-controller-operator-history