# Relationship history for MSHA mine 4604989

Current hierarchy: **East William A → Tazewell Energy Inc → Tazewell Energy #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

- **operator_operates_mine:** Moccasin Mining Company Inc → Tazewell Energy #1; 1975-12-01 to 1986-01-06; source msha-controller-operator-history
- **controller_controls_mine:** Mc Clure Wade S → Tazewell Energy #1; 1975-12-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Mc Clure Wade S → Moccasin Mining Company Inc; 1975-12-01 to 1986-01-06; source msha-controller-operator-history
- **controller_controls_mine:** Larry A  Lough et al → Tazewell Energy #1; 1985-05-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Moccasin Mining Company Inc → Tazewell Energy #1; 1986-01-07 to 1986-06-02; source msha-controller-operator-history
- **controller_controls_mine:** Muncy Larry → Tazewell Energy #1; 1986-01-07 to 1990-10-21; source msha-controller-operator-history
- **controller_controls_operator:** Muncy Larry → Moccasin Mining Company Inc; 1986-01-07 to 1986-06-02; source msha-controller-operator-history
- **operator_operates_mine:** Burke Mountain Trucking Company Inc → Tazewell Energy #1; 1986-06-03 to 1990-04-30; source msha-controller-operator-history
- **controller_controls_operator:** Larry A  Lough et al → Burke Mountain Trucking Company Inc; 1986-06-03 to 1990-04-30; source msha-controller-operator-history
- **controller_controls_operator:** Lewis E  Addair et al → Burke Mountain Trucking Company Inc; 1986-06-03 to 1990-04-30; source msha-controller-operator-history
- **controller_controls_mine:** Hagy Thomas → Tazewell Energy #1; 1989-10-01 to 1993-03-09; source msha-controller-operator-history
- **operator_operates_mine:** High Bank Coal Company → Tazewell Energy #1; 1990-05-01 to 1991-05-13; source msha-controller-operator-history
- **controller_controls_mine:** Mullins White Jr → Tazewell Energy #1; 1990-05-01 to 1991-05-13; source msha-controller-operator-history
- **controller_controls_operator:** Mullins White Jr → High Bank Coal Company; 1990-05-01 to 1991-05-13; source msha-controller-operator-history
- **operator_operates_mine:** Dry Fork Coal Company → Tazewell Energy #1; 1991-05-14 to 1991-12-19; source msha-controller-operator-history
- **controller_controls_operator:** Hagy Thomas → Dry Fork Coal Company; 1991-05-14 to 1991-12-19; source msha-controller-operator-history
- **operator_operates_mine:** Tazewell Energy Inc → Tazewell Energy #1; 1991-12-20 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** East William A → Tazewell Energy #1; 1991-12-20 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** East William A → Tazewell Energy Inc; 1991-12-20 to current/open; source msha-controller-operator-history