# Relationship history for MSHA mine 1511289

Current hierarchy: **Tackett Rick → Stoker Inc → Stoker Inc**

- 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:** Curway Corp → Stoker Inc; 1978-05-01 to 1994-04-28; source msha-controller-operator-history
- **controller_controls_mine:** Currans Wayne → Stoker Inc; 1978-05-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Currans Wayne → Curway Corp; 1978-05-01 to 1994-04-28; source msha-controller-operator-history
- **operator_operates_mine:** Stoker Inc → Stoker Inc; 1994-04-29 to 1995-05-29; source msha-controller-operator-history
- **controller_controls_mine:** Goff Sammy & Mike Wilson → Stoker Inc; 1994-04-29 to 1995-05-29; source msha-controller-operator-history
- **controller_controls_operator:** Goff Sammy & Mike Wilson → Stoker Inc; 1994-04-29 to 1995-05-29; source msha-controller-operator-history
- **operator_operates_mine:** Stoker Inc → Stoker Inc; 1995-05-30 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Tackett Rick → Stoker Inc; 1995-05-30 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Tackett Rick → Stoker Inc; 1995-05-30 to current/open; source msha-controller-operator-history