# Relationship history for MSHA mine 4608123

Current hierarchy: **El Paso Energy Corp → Coastal Coal-West Virginia Llc → 5 Pts Deep**

- 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:** El Paso Energy Corp → 5 Pts Deep; 1979-10-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Plaster Jackie L → 5 Pts Deep; 1988-01-06 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** John E  Plaster → 5 Pts Deep; 1988-04-26 to 1993-09-12; source msha-controller-operator-history
- **operator_operates_mine:** Diamond Black Mining Inc → 5 Pts Deep; 1992-01-01 to 1993-02-21; source msha-controller-operator-history
- **controller_controls_operator:** John E  Plaster → Diamond Black Mining Inc; 1992-01-01 to 1993-02-21; source msha-controller-operator-history
- **operator_operates_mine:** P & W Mine Parts & Services Inc → 5 Pts Deep; 1993-02-22 to 1994-07-12; source msha-controller-operator-history
- **controller_controls_operator:** Plaster Jackie L → P & W Mine Parts & Services Inc; 1993-02-22 to 1994-07-12; source msha-controller-operator-history
- **operator_operates_mine:** Coastal Coal-West Virginia Llc → 5 Pts Deep; 1994-07-13 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** El Paso Energy Corp → Coastal Coal-West Virginia Llc; 1994-07-13 to current/open; source msha-controller-operator-history