# Relationship history for MSHA mine 4801353

Current hierarchy: **Peabody Energy Corporation → Peabody Powder River Mining LLC → North Antelope Rochelle 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:** Powder River Coal Company → North Antelope Rochelle Mine; 1981-06-01 to 1998-05-18; source msha-controller-operator-history
- **controller_controls_mine:** Hanson PLC → North Antelope Rochelle Mine; 1981-06-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Hanson PLC → Powder River Coal Company; 1981-06-01 to 1998-05-18; source msha-controller-operator-history
- **operator_operates_mine:** Peabody Powder River Mining LLC → North Antelope Rochelle Mine; 1998-05-19 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Peabody Energy Corporation → North Antelope Rochelle Mine; 1998-05-19 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Peabody Energy Corporation → Peabody Powder River Mining LLC; 1998-05-19 to current/open; source msha-controller-operator-history