# Relationship history for MSHA mine 1518626

Current hierarchy: **Troy L Lester → Lester And Sons Inc. → Mine # 1**

- Valid-time bounds: inclusive, date granularity
- Null end: open-ended in the upstream history row; not independent proof of present control
- Transaction-time observation: 2026-10-17T05:35:58.500035+00:00

## Valid-time edges

- **controller_controls_mine:** Harold E  Akers et al → Mine # 1; 2001-12-19 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Jessica R  Lester et al → Mine # 1; 2003-02-26 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Hubble Mining Company, LLC → Mine # 1; 2003-04-07 to 2014-07-29; source msha-controller-operator-history
- **controller_controls_operator:** Harold E  Akers et al → Hubble Mining Company, LLC; 2003-04-07 to 2014-07-29; source msha-controller-operator-history
- **controller_controls_operator:** Jim D  Akers et al → Hubble Mining Company, LLC; 2003-04-07 to 2014-07-29; source msha-controller-operator-history
- **operator_operates_mine:** Black Ridge Mining Inc. → Mine # 1; 2014-07-30 to 2015-12-07; source msha-controller-operator-history
- **controller_controls_mine:** Robert B  Hughes → Mine # 1; 2014-07-30 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Robert B  Hughes → Black Ridge Mining Inc.; 2014-07-30 to 2015-12-07; source msha-controller-operator-history
- **operator_operates_mine:** Inspiration Resources Inc. → Mine # 1; 2015-12-08 to 2018-02-28; source msha-controller-operator-history
- **controller_controls_operator:** Jessica R  Lester et al → Inspiration Resources Inc.; 2015-12-08 to 2018-02-28; source msha-controller-operator-history
- **operator_operates_mine:** Lester And Sons Inc. → Mine # 1; 2018-03-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Troy L Lester → Mine # 1; 2018-03-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Troy L Lester → Lester And Sons Inc.; 2018-03-01 to current/open; source msha-controller-operator-history