# Relationship history for MSHA mine 1519390

Current hierarchy: **Jody Dale Puckett → Viper Coal, LLC → #7**

- 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:** TECO Energy Inc → #7; 1991-12-02 to 2015-09-20; source msha-controller-operator-history
- **controller_controls_mine:** Harold E  Akers et al → #7; 1993-12-20 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Jody Dale Puckett → #7; 2007-07-25 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Premier Elkhorn Coal Company → #7; 2009-03-02 to 2009-11-18; source msha-controller-operator-history
- **controller_controls_operator:** TECO Energy Inc → Premier Elkhorn Coal Company; 2009-03-02 to 2009-11-18; source msha-controller-operator-history
- **operator_operates_mine:** South Akers Mining Company, LLC → #7; 2009-11-19 to 2010-08-24; source msha-controller-operator-history
- **controller_controls_operator:** Harold E  Akers et al → South Akers Mining Company, LLC; 2009-11-19 to 2010-08-24; source msha-controller-operator-history
- **controller_controls_operator:** Jim D  Akers et al → South Akers Mining Company, LLC; 2009-11-19 to 2010-08-24; source msha-controller-operator-history
- **operator_operates_mine:** Mercy Mining, LLC → #7; 2010-08-25 to 2011-02-01; source msha-controller-operator-history
- **controller_controls_mine:** Douglas K  Tackett → #7; 2010-08-25 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Douglas K  Tackett → Mercy Mining, LLC; 2010-08-25 to 2011-02-01; source msha-controller-operator-history
- **operator_operates_mine:** Viper Coal, LLC → #7; 2011-02-02 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Jody Dale Puckett → Viper Coal, LLC; 2011-02-02 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** James H  Booth et al → #7; 2015-09-21 to 2019-06-15; source msha-controller-operator-history
- **controller_controls_operator:** James H  Booth et al → Premier Elkhorn Coal Company; 2015-09-21 to 2009-11-18; source msha-controller-operator-history
- **controller_controls_mine:** J Mark  Campbell → #7; 2019-06-16 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** J Mark  Campbell → Premier Elkhorn Coal Company; 2019-06-16 to 2009-11-18; source msha-controller-operator-history