# Relationship history for MSHA mine 4605668

Current hierarchy: **Timothy G Elliott → Panther Coal Company Inc → No 1 Plant**

- 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:** G A  Dunham → No 1 Plant; 1977-03-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** P G & H Inc → No 1 Plant; 1977-10-01 to 1987-12-31; source msha-controller-operator-history
- **controller_controls_operator:** G A  Dunham → P G & H Inc; 1977-10-01 to 1987-12-31; source msha-controller-operator-history
- **controller_controls_mine:** Robert L  Varney → No 1 Plant; 1987-09-15 to 1992-10-01; source msha-controller-operator-history
- **operator_operates_mine:** P G & H Inc → No 1 Plant; 1988-01-01 to 1990-06-14; source msha-controller-operator-history
- **controller_controls_mine:** Jack  Kingsmill → No 1 Plant; 1988-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Jack  Kingsmill → P G & H Inc; 1988-01-01 to 1990-06-14; source msha-controller-operator-history
- **operator_operates_mine:** Rebb Energy Inc → No 1 Plant; 1990-06-15 to 1992-10-01; source msha-controller-operator-history
- **controller_controls_operator:** Robert L  Varney → Rebb Energy Inc; 1990-06-15 to 1992-10-01; source msha-controller-operator-history
- **operator_operates_mine:** P G & H Inc → No 1 Plant; 1992-10-02 to 1993-11-10; source msha-controller-operator-history
- **controller_controls_operator:** Jack  Kingsmill → P G & H Inc; 1992-10-02 to 1993-11-10; source msha-controller-operator-history
- **controller_controls_mine:** Laura M  Pieper → No 1 Plant; 1993-09-28 to 1994-11-29; source msha-controller-operator-history
- **operator_operates_mine:** Wet Branch Energy Inc → No 1 Plant; 1993-11-11 to 1994-11-29; source msha-controller-operator-history
- **controller_controls_operator:** Laura M  Pieper → Wet Branch Energy Inc; 1993-11-11 to 1994-11-29; source msha-controller-operator-history
- **controller_controls_mine:** Roger  Ball et al → No 1 Plant; 1994-11-28 to 1996-10-06; source msha-controller-operator-history
- **operator_operates_mine:** Panther Coal Company Inc → No 1 Plant; 1994-11-30 to 1995-01-11; source msha-controller-operator-history
- **controller_controls_mine:** Timothy G Elliott → No 1 Plant; 1994-11-30 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Timothy G Elliott → Panther Coal Company Inc; 1994-11-30 to 1995-01-11; source msha-controller-operator-history
- **operator_operates_mine:** R & J Mining Inc → No 1 Plant; 1995-01-12 to 1995-04-12; source msha-controller-operator-history
- **controller_controls_operator:** Roger  Ball et al → R & J Mining Inc; 1995-01-12 to 1995-04-12; source msha-controller-operator-history
- **operator_operates_mine:** Panther Coal Company Inc → No 1 Plant; 1995-04-13 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Timothy G Elliott → Panther Coal Company Inc; 1995-04-13 to current/open; source msha-controller-operator-history