# Relationship history for MSHA mine 1515082

Current hierarchy: **Infinity Coal Corp → Hickory Hill Development Corp → Taylor Hill No 3 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: 2026-10-17T05:35:58.500035+00:00

## Valid-time edges

- **controller_controls_mine:** Stiltner John P → Taylor Hill No 3 Mine; 1984-07-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Stil-Mc Coal Company Inc → Taylor Hill No 3 Mine; 1985-02-01 to 1985-10-08; source msha-controller-operator-history
- **controller_controls_operator:** Stiltner John P → Stil-Mc Coal Company Inc; 1985-02-01 to 1985-10-08; source msha-controller-operator-history
- **operator_operates_mine:** Lanaco Mining Company Inc → Taylor Hill No 3 Mine; 1985-10-09 to 1986-02-12; source msha-controller-operator-history
- **controller_controls_mine:** Mc Peek Donnie → Taylor Hill No 3 Mine; 1985-10-09 to 1986-02-12; source msha-controller-operator-history
- **controller_controls_operator:** Mc Peek Donnie → Lanaco Mining Company Inc; 1985-10-09 to 1986-02-12; source msha-controller-operator-history
- **operator_operates_mine:** Anik Coal Company Inc → Taylor Hill No 3 Mine; 1986-02-13 to 1990-05-28; source msha-controller-operator-history
- **controller_controls_mine:** Griffey Clyde → Taylor Hill No 3 Mine; 1986-02-13 to 1990-05-28; source msha-controller-operator-history
- **controller_controls_operator:** Griffey Clyde → Anik Coal Company Inc; 1986-02-13 to 1990-05-28; source msha-controller-operator-history
- **controller_controls_mine:** Infinity Coal Corp → Taylor Hill No 3 Mine; 1989-03-08 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Hickory Hill Development Corp → Taylor Hill No 3 Mine; 1990-05-29 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Infinity Coal Corp → Hickory Hill Development Corp; 1990-05-29 to current/open; source msha-controller-operator-history