# Relationship history for MSHA mine 0102978

Current hierarchy: **Powell Greg → P B Coal Inc → Antioch 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:** Stanley Steven T → Antioch Mine; 1988-05-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Blossom B  Nelson  et al → Antioch Mine; 1988-12-01 to 2011-08-31; source msha-controller-operator-history
- **operator_operates_mine:** Best Coal Inc → Antioch Mine; 1992-11-01 to 1993-01-19; source msha-controller-operator-history
- **controller_controls_operator:** Blossom B  Nelson  et al → Best Coal Inc; 1992-11-01 to 1993-01-19; source msha-controller-operator-history
- **controller_controls_operator:** Paulette  Trimble  et al → Best Coal Inc; 1992-11-01 to 1993-01-19; source msha-controller-operator-history
- **operator_operates_mine:** Ats Inc → Antioch Mine; 1993-01-20 to 1995-01-09; source msha-controller-operator-history
- **controller_controls_operator:** Stanley Steven T → Ats Inc; 1993-01-20 to 1995-01-09; source msha-controller-operator-history
- **controller_controls_mine:** Powell Greg → Antioch Mine; 1994-10-31 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** P B Coal Inc → Antioch Mine; 1995-01-10 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Powell Greg → P B Coal Inc; 1995-01-10 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Kendall  Robison et al → Antioch 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 1993-01-19; source msha-controller-operator-history
- **controller_controls_operator:** Otis R  Robison et al → Best Coal Inc; 2011-09-01 to 1993-01-19; source msha-controller-operator-history
- **controller_controls_mine:** Michael T  Costello et al → Antioch 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 1993-01-19; source msha-controller-operator-history
- **controller_controls_operator:** Freddy  Hunt et al → Best Coal Inc; 2017-09-01 to 1993-01-19; source msha-controller-operator-history
- **controller_controls_mine:** Michael T  Costello → Antioch 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 1993-01-19; source msha-controller-operator-history
- **controller_controls_mine:** David (Michael)  Jamison et al → Antioch Mine; 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 1993-01-19; source msha-controller-operator-history
- **controller_controls_operator:** John  McNab et al → Best Coal Inc; 2021-03-15 to 1993-01-19; source msha-controller-operator-history
- **controller_controls_mine:** David (Michael)  Jamison → Antioch 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 1993-01-19; source msha-controller-operator-history