# Relationship history for MSHA mine 4608883

Current hierarchy: **Core Natural Resources Inc → ICG Eastern LLC → Jennie Creek Surface 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: 2026-10-17T05:35:58.500035+00:00

## Valid-time edges

- **controller_controls_mine:** Horizon Natural Resources Incorporated → Jennie Creek Surface Mine; 1998-06-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** C C Coal Company → Jennie Creek Surface Mine; 2001-03-01 to 2004-09-30; source msha-controller-operator-history
- **controller_controls_operator:** Horizon Natural Resources Incorporated → C C Coal Company; 2001-03-01 to 2004-09-30; source msha-controller-operator-history
- **operator_operates_mine:** ICG Eastern LLC → Jennie Creek Surface Mine; 2004-10-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** International Coal Group Inc (ICG) → Jennie Creek Surface Mine; 2004-10-01 to 2011-06-14; source msha-controller-operator-history
- **controller_controls_operator:** International Coal Group Inc (ICG) → ICG Eastern LLC; 2004-10-01 to 2011-06-14; source msha-controller-operator-history
- **controller_controls_mine:** Arch Resources Inc → Jennie Creek Surface Mine; 2011-06-15 to 2025-01-13; source msha-controller-operator-history
- **controller_controls_operator:** Arch Resources Inc → ICG Eastern LLC; 2011-06-15 to 2025-01-13; source msha-controller-operator-history
- **controller_controls_mine:** Core Natural Resources Inc → Jennie Creek Surface Mine; 2025-01-14 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Core Natural Resources Inc → ICG Eastern LLC; 2025-01-14 to current/open; source msha-controller-operator-history