# Relationship history for MSHA mine 4406452

Current hierarchy: **J Mark  Campbell → Clintwood Elkhorn Mining Company Inc → Mine #3**

- 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:** Justus Kerry Shawn & Charles Blankenship → Mine #3; 1986-05-09 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** TECO Energy Inc → Mine #3; 1988-04-26 to 2015-09-20; source msha-controller-operator-history
- **operator_operates_mine:** Shorty Mining Company → Mine #3; 1988-05-01 to 1991-10-20; source msha-controller-operator-history
- **controller_controls_operator:** Justus Kerry Shawn & Charles Blankenship → Shorty Mining Company; 1988-05-01 to 1991-10-20; source msha-controller-operator-history
- **controller_controls_mine:** MAPCO Inc → Mine #3; 1989-10-25 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** B & B Coal Company → Mine #3; 1991-10-21 to 1992-09-14; source msha-controller-operator-history
- **controller_controls_mine:** Blankenship Bradley & Becky Justus → Mine #3; 1991-10-21 to 1992-09-14; source msha-controller-operator-history
- **controller_controls_operator:** Blankenship Bradley & Becky Justus → B & B Coal Company; 1991-10-21 to 1992-09-14; source msha-controller-operator-history
- **operator_operates_mine:** Race Fork Coal Corp → Mine #3; 1992-09-15 to 1993-01-03; source msha-controller-operator-history
- **controller_controls_operator:** MAPCO Inc → Race Fork Coal Corp; 1992-09-15 to 1993-01-03; source msha-controller-operator-history
- **operator_operates_mine:** Ace Mining Inc → Mine #3; 1993-01-04 to 1997-09-15; source msha-controller-operator-history
- **controller_controls_mine:** Smith Glen A → Mine #3; 1993-01-04 to 1997-09-15; source msha-controller-operator-history
- **controller_controls_operator:** Smith Glen A → Ace Mining Inc; 1993-01-04 to 1997-09-15; source msha-controller-operator-history
- **controller_controls_mine:** Alliance Resource Partners LP → Mine #3; 1996-10-24 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Venture Mining Inc → Mine #3; 1997-09-16 to 1998-09-28; source msha-controller-operator-history
- **controller_controls_mine:** Blankenship Carter → Mine #3; 1997-09-16 to 1998-09-28; source msha-controller-operator-history
- **controller_controls_operator:** Blankenship Carter → Venture Mining Inc; 1997-09-16 to 1998-09-28; source msha-controller-operator-history
- **operator_operates_mine:** Race Fork Coal Corp → Mine #3; 1998-09-29 to 1999-07-14; source msha-controller-operator-history
- **controller_controls_operator:** Alliance Resource Partners LP → Race Fork Coal Corp; 1998-09-29 to 1999-07-14; source msha-controller-operator-history
- **operator_operates_mine:** Clintwood Elkhorn Mining Company Inc → Mine #3; 1999-07-15 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** TECO Energy Inc → Clintwood Elkhorn Mining Company Inc; 1999-07-15 to 2015-09-20; source msha-controller-operator-history
- **controller_controls_mine:** James H  Booth et al → Mine #3; 2015-09-21 to 2019-06-15; source msha-controller-operator-history
- **controller_controls_operator:** James H  Booth et al → Clintwood Elkhorn Mining Company Inc; 2015-09-21 to 2019-06-15; source msha-controller-operator-history
- **controller_controls_mine:** J Mark  Campbell → Mine #3; 2019-06-16 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** J Mark  Campbell → Clintwood Elkhorn Mining Company Inc; 2019-06-16 to current/open; source msha-controller-operator-history