# Relationship history for MSHA mine 1511986

Current hierarchy: **Davis Jerry M → Centerline Mining Inc → 211**

- 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:** Fleming Roy → 211; 1976-06-14 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Coon Mining Company Inc → 211; 1979-08-01 to 1981-08-24; source msha-controller-operator-history
- **controller_controls_operator:** Fleming Roy → Coon Mining Company Inc; 1979-08-01 to 1981-08-24; source msha-controller-operator-history
- **controller_controls_mine:** Tackett Rodney → 211; 1980-09-26 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** B R T Collieries Inc → 211; 1981-08-25 to 1986-03-17; source msha-controller-operator-history
- **controller_controls_operator:** Tackett Rodney → B R T Collieries Inc; 1981-08-25 to 1986-03-17; source msha-controller-operator-history
- **operator_operates_mine:** Centerline Mining Inc → 211; 1986-03-18 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Davis Jerry M Et Al → 211; 1986-03-18 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Davis Jerry M Et Al → Centerline Mining Inc; 1986-03-18 to current/open; source msha-controller-operator-history