# Relationship history for MSHA mine 4605243

Current hierarchy: **El Paso Energy Corp → Coastal Coal-West Virginia Llc → Plant No 2**

- 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

- **operator_operates_mine:** Clarion Coal Company → Plant No 2; 1976-07-01 to 1978-05-16; source msha-controller-operator-history
- **controller_controls_mine:** Robertson C D → Plant No 2; 1976-07-01 to 1978-05-16; source msha-controller-operator-history
- **controller_controls_operator:** Robertson C D → Clarion Coal Company; 1976-07-01 to 1978-05-16; source msha-controller-operator-history
- **operator_operates_mine:** Wolf Creek Coal Company Inc → Plant No 2; 1978-05-17 to 1979-09-26; source msha-controller-operator-history
- **controller_controls_mine:** B Ray  Thompson → Plant No 2; 1978-05-17 to 1979-09-26; source msha-controller-operator-history
- **controller_controls_operator:** B Ray  Thompson → Wolf Creek Coal Company Inc; 1978-05-17 to 1979-09-26; source msha-controller-operator-history
- **operator_operates_mine:** Oneida Coal Company Inc → Plant No 2; 1979-09-27 to 1992-02-27; source msha-controller-operator-history
- **controller_controls_mine:** Sunoco, Inc. → Plant No 2; 1979-09-27 to 1992-02-27; source msha-controller-operator-history
- **controller_controls_operator:** Sunoco, Inc. → Oneida Coal Company Inc; 1979-09-27 to 1992-02-27; source msha-controller-operator-history
- **controller_controls_mine:** El Paso Energy Corp → Plant No 2; 1979-10-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Oneida Coal Company Inc → Plant No 2; 1992-02-28 to 1995-12-14; source msha-controller-operator-history
- **controller_controls_mine:** Robert E  Murray → Plant No 2; 1992-02-28 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Robert E  Murray → Oneida Coal Company Inc; 1992-02-28 to 1995-12-14; source msha-controller-operator-history
- **operator_operates_mine:** Coastal Coal-West Virginia Llc → Plant No 2; 1995-12-15 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** El Paso Energy Corp → Coastal Coal-West Virginia Llc; 1995-12-15 to current/open; source msha-controller-operator-history