# Relationship history for MSHA mine 4607791

Current hierarchy: **Keeney Timothy A → Level Land Mining Corp → Phillips Run #1**

- 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:** Michael C  Faykus → Phillips Run #1; 1986-02-24 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Prosperity Energy Inc → Phillips Run #1; 1989-10-01 to 1992-02-09; source msha-controller-operator-history
- **controller_controls_operator:** Michael C  Faykus → Prosperity Energy Inc; 1989-10-01 to 1992-02-09; source msha-controller-operator-history
- **operator_operates_mine:** Pocahontas Resources Inc → Phillips Run #1; 1992-02-10 to 1993-01-14; source msha-controller-operator-history
- **controller_controls_mine:** Beveridge James & Denver R Knight → Phillips Run #1; 1992-02-10 to 1993-01-14; source msha-controller-operator-history
- **controller_controls_operator:** Beveridge James & Denver R Knight → Pocahontas Resources Inc; 1992-02-10 to 1993-01-14; source msha-controller-operator-history
- **controller_controls_mine:** Keeney Timothy A → Phillips Run #1; 1992-06-10 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Level Land Mining Corp → Phillips Run #1; 1993-01-15 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Keeney Timothy A → Level Land Mining Corp; 1993-01-15 to current/open; source msha-controller-operator-history