# Relationship history for MSHA mine 4606565

Current hierarchy: **Horizon Natural Resources Incorporated → Kris-Beth Inc → Kris-Beth Mine No 1**

- 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:** Kris-Beth Inc → Kris-Beth Mine No 1; 1982-08-01 to 1988-06-26; source msha-controller-operator-history
- **controller_controls_mine:** Berry Owen L & Helen → Kris-Beth Mine No 1; 1982-08-01 to 1988-06-26; source msha-controller-operator-history
- **controller_controls_operator:** Berry Owen L & Helen → Kris-Beth Inc; 1982-08-01 to 1988-06-26; source msha-controller-operator-history
- **operator_operates_mine:** Kris-Beth Inc → Kris-Beth Mine No 1; 1988-06-27 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Horizon Natural Resources Incorporated → Kris-Beth Mine No 1; 1988-06-27 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Horizon Natural Resources Incorporated → Kris-Beth Inc; 1988-06-27 to current/open; source msha-controller-operator-history