# Relationship history for MSHA mine 1515999

Current hierarchy: **Kenneth L  Farley → Team Management Inc → Mine No 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: 2026-10-13T11:19:05.459773+00:00

## Valid-time edges

- **controller_controls_mine:** Mullins Dale Et Al → Mine No 1; 1950-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Berwind Corporation → Mine No 1; 1981-11-03 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Roger D  Clevinger → Mine No 1; 1987-01-13 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Jesse Branch Coal Company → Mine No 1; 1987-04-01 to 1987-06-02; source msha-controller-operator-history
- **controller_controls_operator:** Berwind Corporation → Jesse Branch Coal Company; 1987-04-01 to 1987-06-02; source msha-controller-operator-history
- **operator_operates_mine:** Glaco Mining Inc → Mine No 1; 1987-06-03 to 1989-01-15; source msha-controller-operator-history
- **controller_controls_mine:** J D McDonald et al → Mine No 1; 1987-06-03 to 1989-01-15; source msha-controller-operator-history
- **controller_controls_operator:** J D McDonald et al → Glaco Mining Inc; 1987-06-03 to 1989-01-15; source msha-controller-operator-history
- **operator_operates_mine:** Mullins & Sons Coal Company Inc → Mine No 1; 1989-01-16 to 1993-10-04; source msha-controller-operator-history
- **controller_controls_operator:** Mullins Dale Et Al → Mullins & Sons Coal Company Inc; 1989-01-16 to 1993-10-04; source msha-controller-operator-history
- **controller_controls_mine:** Randy  Gilkerson et al → Mine No 1; 1992-09-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Diners' Prospect Inc → Mine No 1; 1993-10-05 to 1993-12-07; source msha-controller-operator-history
- **controller_controls_operator:** Roger D  Clevinger → Diners' Prospect Inc; 1993-10-05 to 1993-12-07; source msha-controller-operator-history
- **operator_operates_mine:** Ember Contracting Inc → Mine No 1; 1993-12-08 to 1995-02-16; source msha-controller-operator-history
- **controller_controls_operator:** Randy  Gilkerson et al → Ember Contracting Inc; 1993-12-08 to 1995-02-16; source msha-controller-operator-history
- **controller_controls_mine:** Harold E  Akers et al → Mine No 1; 1993-12-20 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Oak Hill Mining Company Inc → Mine No 1; 1995-02-17 to 1996-02-05; source msha-controller-operator-history
- **controller_controls_mine:** Hobart  Anderson  et al → Mine No 1; 1995-02-17 to 1996-02-05; source msha-controller-operator-history
- **controller_controls_operator:** Hobart  Anderson  et al → Oak Hill Mining Company Inc; 1995-02-17 to 1996-02-05; source msha-controller-operator-history
- **operator_operates_mine:** Maple Leaf Coal Company → Mine No 1; 1996-02-06 to 1997-03-30; source msha-controller-operator-history
- **controller_controls_mine:** Tony  Smith → Mine No 1; 1996-02-06 to 1997-03-30; source msha-controller-operator-history
- **controller_controls_operator:** Tony  Smith → Maple Leaf Coal Company; 1996-02-06 to 1997-03-30; source msha-controller-operator-history
- **operator_operates_mine:** South Akers Mining Llc → Mine No 1; 1997-03-31 to 1999-11-21; source msha-controller-operator-history
- **controller_controls_operator:** Harold E  Akers et al → South Akers Mining Llc; 1997-03-31 to 1999-11-21; source msha-controller-operator-history
- **controller_controls_operator:** Jim D  Akers et al → South Akers Mining Llc; 1997-03-31 to 1999-11-21; source msha-controller-operator-history
- **operator_operates_mine:** Team Management Inc → Mine No 1; 1999-11-22 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Kenneth L  Farley et al → Mine No 1; 1999-11-22 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Kenneth L  Farley et al → Team Management Inc; 1999-11-22 to current/open; source msha-controller-operator-history