# Relationship history for MSHA mine 1519710

Current hierarchy: **Jason D Tackett → Tackett Energies LLC → No. 2**

- 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:** Greg  Damron  et al → No. 2; 2007-10-16 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** GR Mining Inc → No. 2; 2013-07-02 to 2014-07-06; source msha-controller-operator-history
- **controller_controls_mine:** Gary D  Boyd → No. 2; 2013-07-02 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Gary D  Boyd → GR Mining Inc; 2013-07-02 to 2014-07-06; source msha-controller-operator-history
- **operator_operates_mine:** Cheyenne Mining, Inc. → No. 2; 2014-07-07 to 2019-04-29; source msha-controller-operator-history
- **controller_controls_operator:** Greg  Damron  et al → Cheyenne Mining, Inc.; 2014-07-07 to 2019-04-29; source msha-controller-operator-history
- **controller_controls_operator:** Henry  Chaney  et al → Cheyenne Mining, Inc.; 2014-07-07 to 2019-04-29; source msha-controller-operator-history
- **operator_operates_mine:** Tackett Energies LLC → No. 2; 2019-04-30 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Jason D Tackett → No. 2; 2019-04-30 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Jason D Tackett → Tackett Energies LLC; 2019-04-30 to current/open; source msha-controller-operator-history