# Relationship history for MSHA mine 4607942

Current hierarchy: **Walter Energy Incorporated → Atlantic Leaseco LLC → King Coal Surface 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

- **controller_controls_mine:** Occidental Petroleum Corp → King Coal Surface Mine No 1; 1950-01-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Island Creek Coal Company → King Coal Surface Mine No 1; 1990-09-01 to 1995-11-30; source msha-controller-operator-history
- **controller_controls_operator:** Occidental Petroleum Corp → Island Creek Coal Company; 1990-09-01 to 1995-11-30; source msha-controller-operator-history
- **operator_operates_mine:** Gauley Eagle Holdings Inc → King Coal Surface Mine No 1; 1995-12-01 to 2005-10-30; source msha-controller-operator-history
- **controller_controls_mine:** S & P Holding Company Inc → King Coal Surface Mine No 1; 1995-12-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** S & P Holding Company Inc → Gauley Eagle Holdings Inc; 1995-12-01 to 2005-10-30; source msha-controller-operator-history
- **controller_controls_mine:** Cambrian Mining PLC → King Coal Surface Mine No 1; 2005-06-10 to 2011-03-31; source msha-controller-operator-history
- **operator_operates_mine:** Atlantic Leaseco LLC → King Coal Surface Mine No 1; 2005-10-31 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Cambrian Mining PLC → Atlantic Leaseco LLC; 2005-10-31 to 2011-03-31; source msha-controller-operator-history
- **controller_controls_mine:** Walter Energy Incorporated → King Coal Surface Mine No 1; 2011-04-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Walter Energy Incorporated → Atlantic Leaseco LLC; 2011-04-01 to current/open; source msha-controller-operator-history