# Relationship history for MSHA mine 4405527

Current hierarchy: **Cecil T  Brinager → Calico Coal Inc → Mine #6**

- 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

- **operator_operates_mine:** Bear Ridge Coal Company Inc → Mine #6; 1980-10-01 to 1982-04-27; source msha-controller-operator-history
- **controller_controls_mine:** Estil  Stillwell → Mine #6; 1980-10-01 to 1982-04-27; source msha-controller-operator-history
- **controller_controls_operator:** Estil  Stillwell → Bear Ridge Coal Company Inc; 1980-10-01 to 1982-04-27; source msha-controller-operator-history
- **operator_operates_mine:** M C Mining Inc → Mine #6; 1982-04-28 to 1986-08-24; source msha-controller-operator-history
- **controller_controls_mine:** Rash Russell → Mine #6; 1982-04-28 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Rash Russell → M C Mining Inc; 1982-04-28 to 1986-08-24; source msha-controller-operator-history
- **operator_operates_mine:** Fray Resources Inc → Mine #6; 1986-08-25 to 1987-12-28; source msha-controller-operator-history
- **controller_controls_mine:** Raymond  Cline → Mine #6; 1986-08-25 to 1987-12-28; source msha-controller-operator-history
- **controller_controls_operator:** Raymond  Cline → Fray Resources Inc; 1986-08-25 to 1987-12-28; source msha-controller-operator-history
- **operator_operates_mine:** T & C Coal Company → Mine #6; 1987-12-29 to 1989-04-30; source msha-controller-operator-history
- **controller_controls_mine:** Monk Darrell & Robert Ratliff → Mine #6; 1987-12-29 to 1989-04-30; source msha-controller-operator-history
- **controller_controls_operator:** Monk Darrell & Robert Ratliff → T & C Coal Company; 1987-12-29 to 1989-04-30; source msha-controller-operator-history
- **controller_controls_mine:** Keen Larry R → Mine #6; 1988-07-26 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Calico Coal Inc → Mine #6; 1989-05-01 to 1990-10-18; source msha-controller-operator-history
- **controller_controls_mine:** Ernest E  Varney et al → Mine #6; 1989-05-01 to 2012-06-18; source msha-controller-operator-history
- **controller_controls_operator:** Ernest E  Varney et al → Calico Coal Inc; 1989-05-01 to 1990-10-18; source msha-controller-operator-history
- **operator_operates_mine:** Jamie Marcus Coal Company Inc → Mine #6; 1990-10-19 to 1991-03-28; source msha-controller-operator-history
- **controller_controls_operator:** Keen Larry R → Jamie Marcus Coal Company Inc; 1990-10-19 to 1991-03-28; source msha-controller-operator-history
- **operator_operates_mine:** Maverick Coal Company → Mine #6; 1991-03-29 to 1993-01-03; source msha-controller-operator-history
- **controller_controls_mine:** Porter Richard → Mine #6; 1991-03-29 to 1993-01-03; source msha-controller-operator-history
- **controller_controls_operator:** Porter Richard → Maverick Coal Company; 1991-03-29 to 1993-01-03; source msha-controller-operator-history
- **operator_operates_mine:** Calico Coal Inc → Mine #6; 1993-01-04 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Ernest E  Varney et al → Calico Coal Inc; 1993-01-04 to 2012-06-18; source msha-controller-operator-history
- **controller_controls_mine:** Estate of Ernest E Varney → Mine #6; 2012-06-19 to 2014-04-14; source msha-controller-operator-history
- **controller_controls_operator:** Estate of Ernest E Varney → Calico Coal Inc; 2012-06-19 to 1990-10-18; source msha-controller-operator-history
- **controller_controls_operator:** Estate of Ernest E Varney → Calico Coal Inc; 2012-06-19 to 2014-04-14; source msha-controller-operator-history
- **controller_controls_mine:** Cecil T  Brinager → Mine #6; 2014-04-15 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Cecil T  Brinager → Calico Coal Inc; 2014-04-15 to 1990-10-18; source msha-controller-operator-history
- **controller_controls_operator:** Cecil T  Brinager → Calico Coal Inc; 2014-04-15 to current/open; source msha-controller-operator-history