# Relationship history for MSHA mine 0103456

Current hierarchy: **Otis R  Robison Jr → Highland Energy, Inc → NO. 5 Mine**

- 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:** Centennial Natural Resources LLC → NO. 5 Mine; 2014-11-11 to 2020-09-16; source msha-controller-operator-history
- **controller_controls_mine:** NACCO Industries Inc → NO. 5 Mine; 2014-11-11 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** NACCO Industries Inc → Centennial Natural Resources LLC; 2014-11-11 to 2020-09-16; source msha-controller-operator-history
- **controller_controls_mine:** Rodney  Mays → NO. 5 Mine; 2018-04-04 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Otis R  Robison Jr → NO. 5 Mine; 2018-11-15 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Mays Mining, Inc. → NO. 5 Mine; 2020-09-17 to 2024-07-23; source msha-controller-operator-history
- **controller_controls_operator:** Rodney  Mays → Mays Mining, Inc.; 2020-09-17 to 2024-07-23; source msha-controller-operator-history
- **operator_operates_mine:** Highland Energy, Inc → NO. 5 Mine; 2024-07-24 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Otis R  Robison Jr → Highland Energy, Inc; 2024-07-24 to current/open; source msha-controller-operator-history