# Relationship history for MSHA mine 0103136

Current hierarchy: **David (Michael)  Jamison → Best Coal Inc → Cooper Mine**

- 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:** Paulette  Trimble  et al → Cooper Mine; 1988-12-01 to 2011-08-31; source msha-controller-operator-history
- **operator_operates_mine:** Best Coal Inc → Cooper Mine; 1998-11-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Paulette  Trimble  et al → Best Coal Inc; 1998-11-01 to 2011-08-31; source msha-controller-operator-history
- **controller_controls_operator:** Blossom B  Nelson  et al → Best Coal Inc; 1998-11-01 to 2011-08-31; source msha-controller-operator-history
- **controller_controls_mine:** Kendall  Robison et al → Cooper Mine; 2011-09-01 to 2017-08-31; source msha-controller-operator-history
- **controller_controls_operator:** Kendall  Robison et al → Best Coal Inc; 2011-09-01 to 2017-08-31; source msha-controller-operator-history
- **controller_controls_operator:** Otis R  Robison et al → Best Coal Inc; 2011-09-01 to 2017-08-31; source msha-controller-operator-history
- **controller_controls_mine:** Michael T  Costello et al → Cooper Mine; 2017-09-01 to 2019-07-31; source msha-controller-operator-history
- **controller_controls_operator:** Michael T  Costello et al → Best Coal Inc; 2017-09-01 to 2019-07-31; source msha-controller-operator-history
- **controller_controls_operator:** Freddy  Hunt et al → Best Coal Inc; 2017-09-01 to 2019-07-31; source msha-controller-operator-history
- **controller_controls_mine:** Michael T  Costello → Cooper Mine; 2019-08-01 to 2021-03-14; source msha-controller-operator-history
- **controller_controls_operator:** Michael T  Costello → Best Coal Inc; 2019-08-01 to 2021-03-14; source msha-controller-operator-history
- **controller_controls_mine:** John  McNab et al → Cooper Mine; 2021-03-15 to 2022-06-16; source msha-controller-operator-history
- **controller_controls_operator:** John  McNab et al → Best Coal Inc; 2021-03-15 to 2022-06-16; source msha-controller-operator-history
- **controller_controls_operator:** David (Michael)  Jamison et al → Best Coal Inc; 2021-03-15 to 2022-06-16; source msha-controller-operator-history
- **controller_controls_mine:** David (Michael)  Jamison → Cooper Mine; 2022-06-17 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** David (Michael)  Jamison → Best Coal Inc; 2022-06-17 to current/open; source msha-controller-operator-history