# Relationship history for MSHA mine 1517427

Current hierarchy: **Jimmy W  Tackett → Gemco Energies Inc → #2 Punch Mine**

- 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:** Florida Progress Corporation → #2 Punch Mine; 1989-02-10 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Tackett Jimmy W → #2 Punch Mine; 1992-09-28 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Diamond May Coal Company Inc → #2 Punch Mine; 1993-07-01 to 1993-10-11; source msha-controller-operator-history
- **controller_controls_operator:** Florida Progress Corporation → Diamond May Coal Company Inc; 1993-07-01 to 1993-10-11; source msha-controller-operator-history
- **operator_operates_mine:** Midnight Coal Corp → #2 Punch Mine; 1993-10-12 to 1995-09-26; source msha-controller-operator-history
- **controller_controls_operator:** Tackett Jimmy W → Midnight Coal Corp; 1993-10-12 to 1995-09-26; source msha-controller-operator-history
- **operator_operates_mine:** Gemco Energies Inc → #2 Punch Mine; 1995-09-27 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Jimmy W  Tackett et al → #2 Punch Mine; 1995-09-27 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Jimmy W  Tackett et al → Gemco Energies Inc; 1995-09-27 to current/open; source msha-controller-operator-history