# Relationship history for MSHA mine 1515978

Current hierarchy: **Jody Dale Puckett → Tahiti Energy, Inc. → SPURLOCK 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:** Koch Industries Inc → SPURLOCK PLANT; 1979-05-31 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Samco Mining Company Inc → SPURLOCK PLANT; 1987-04-01 to 1989-04-09; source msha-controller-operator-history
- **controller_controls_mine:** Larry  Thornsberry et al → SPURLOCK PLANT; 1987-04-01 to 1989-04-09; source msha-controller-operator-history
- **controller_controls_operator:** Larry  Thornsberry et al → Samco Mining Company Inc; 1987-04-01 to 1989-04-09; source msha-controller-operator-history
- **operator_operates_mine:** Koch Carbon Inc → SPURLOCK PLANT; 1989-04-10 to 1994-03-30; source msha-controller-operator-history
- **controller_controls_operator:** Koch Industries Inc → Koch Carbon Inc; 1989-04-10 to 1994-03-30; source msha-controller-operator-history
- **controller_controls_mine:** John  Harris → SPURLOCK PLANT; 1992-10-28 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Bull Creek Coal Corporation → SPURLOCK PLANT; 1994-03-31 to 2006-05-14; source msha-controller-operator-history
- **controller_controls_operator:** John  Harris → Bull Creek Coal Corporation; 1994-03-31 to 2006-05-14; source msha-controller-operator-history
- **operator_operates_mine:** Black Diamond Mining Co LLC → SPURLOCK PLANT; 2006-05-15 to 2010-07-15; source msha-controller-operator-history
- **controller_controls_mine:** Harold  Sergent  et al → SPURLOCK PLANT; 2006-05-15 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Harold  Sergent  et al → Black Diamond Mining Co LLC; 2006-05-15 to 2010-07-15; source msha-controller-operator-history
- **operator_operates_mine:** Black Hawk Mining LLC → SPURLOCK PLANT; 2010-07-16 to 2015-06-30; source msha-controller-operator-history
- **controller_controls_mine:** Thomas A  Potter et al → SPURLOCK PLANT; 2010-07-16 to 2013-06-30; source msha-controller-operator-history
- **controller_controls_operator:** Thomas A  Potter et al → Black Hawk Mining LLC; 2010-07-16 to 2013-06-30; source msha-controller-operator-history
- **controller_controls_operator:** John M  Potter et al → Black Hawk Mining LLC; 2010-07-16 to 2013-06-30; source msha-controller-operator-history
- **controller_controls_mine:** Blackhawk Mining LLC → SPURLOCK PLANT; 2013-07-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Blackhawk Mining LLC → Black Hawk Mining LLC; 2013-07-01 to 2015-06-30; source msha-controller-operator-history
- **operator_operates_mine:** Spurlock Mining LLC → SPURLOCK PLANT; 2015-07-01 to 2022-12-01; source msha-controller-operator-history
- **controller_controls_mine:** Blackhawk Mining LLC → SPURLOCK PLANT; 2015-07-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Blackhawk Mining LLC → Spurlock Mining LLC; 2015-07-01 to 2022-12-01; source msha-controller-operator-history
- **controller_controls_mine:** Jody Dale Puckett → SPURLOCK PLANT; 2022-03-30 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Tahiti Energy, Inc. → SPURLOCK PLANT; 2022-12-02 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Jody Dale Puckett → Tahiti Energy, Inc.; 2022-12-02 to current/open; source msha-controller-operator-history