# Relationship history for MSHA mine 4603365

Current hierarchy: **Hale Vanessa G → W V E Construction → Wyoming & Zenith Haulway**

- 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:** United Pocahontas Coal Company → Wyoming & Zenith Haulway; 1950-01-01 to 1982-06-23; source msha-controller-operator-history
- **controller_controls_mine:** National Bulk Carriers → Wyoming & Zenith Haulway; 1950-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** National Bulk Carriers → United Pocahontas Coal Company; 1950-01-01 to 1982-06-23; source msha-controller-operator-history
- **controller_controls_mine:** White Ulys P & Edward V Cole → Wyoming & Zenith Haulway; 1982-05-03 to 1983-02-23; source msha-controller-operator-history
- **operator_operates_mine:** United Pocahontas Coal Company → Wyoming & Zenith Haulway; 1982-06-24 to 1983-02-23; source msha-controller-operator-history
- **controller_controls_operator:** White Ulys P & Edward V Cole → United Pocahontas Coal Company; 1982-06-24 to 1983-02-23; source msha-controller-operator-history
- **controller_controls_mine:** White Ulys P & Edward V Cole → Wyoming & Zenith Haulway; 1983-02-24 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Sadie Z Coal Company → Wyoming & Zenith Haulway; 1983-02-24 to 1984-10-21; source msha-controller-operator-history
- **controller_controls_mine:** Cole Lonnie W → Wyoming & Zenith Haulway; 1983-02-24 to 1984-10-21; source msha-controller-operator-history
- **controller_controls_operator:** Cole Lonnie W → Sadie Z Coal Company; 1983-02-24 to 1984-10-21; source msha-controller-operator-history
- **operator_operates_mine:** Shoreline Coal Company → Wyoming & Zenith Haulway; 1984-10-22 to 1985-04-16; source msha-controller-operator-history
- **controller_controls_mine:** Webb Raymond R → Wyoming & Zenith Haulway; 1984-10-22 to 1986-06-01; source msha-controller-operator-history
- **controller_controls_operator:** Webb Raymond R → Shoreline Coal Company; 1984-10-22 to 1985-04-16; source msha-controller-operator-history
- **operator_operates_mine:** Black Mountain Coal Company Inc → Wyoming & Zenith Haulway; 1985-04-17 to 1987-09-02; source msha-controller-operator-history
- **controller_controls_operator:** White Ulys P & Edward V Cole → Black Mountain Coal Company Inc; 1985-04-17 to 1987-09-02; source msha-controller-operator-history
- **operator_operates_mine:** W V E Construction → Wyoming & Zenith Haulway; 1987-09-03 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Hale Vanessa G → Wyoming & Zenith Haulway; 1987-09-03 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Hale Vanessa G → W V E Construction; 1987-09-03 to current/open; source msha-controller-operator-history