# Relationship history for MSHA mine 3600897

Current hierarchy: **Matthew  Canestrale → Matt Canestrale Contracting Inc → La Belle Site**

- 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:** Jones & Laughlin Steel Corp → La Belle Site; 1950-01-01 to 1982-05-23; source msha-controller-operator-history
- **controller_controls_mine:** LTV Corporation → La Belle Site; 1950-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** LTV Corporation → Jones & Laughlin Steel Corp; 1950-01-01 to 1982-05-23; source msha-controller-operator-history
- **operator_operates_mine:** La Belle Processing Company → La Belle Site; 1982-05-24 to 1987-12-06; source msha-controller-operator-history
- **controller_controls_mine:** Massey Energy Company → La Belle Site; 1982-05-24 to 1992-03-26; source msha-controller-operator-history
- **controller_controls_operator:** Massey Energy Company → La Belle Processing Company; 1982-05-24 to 1987-12-06; source msha-controller-operator-history
- **operator_operates_mine:** Northern Continental Operating Company Inc → La Belle Site; 1987-12-07 to 1990-11-16; source msha-controller-operator-history
- **controller_controls_mine:** CLI International Enterprises Corp → La Belle Site; 1987-12-07 to 1991-06-20; source msha-controller-operator-history
- **controller_controls_operator:** CLI International Enterprises Corp → Northern Continental Operating Company Inc; 1987-12-07 to 1990-11-16; source msha-controller-operator-history
- **controller_controls_mine:** Michael P  Carlow et al → La Belle Site; 1989-11-09 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** La Belle Processing Company → La Belle Site; 1990-11-17 to 1992-03-26; source msha-controller-operator-history
- **controller_controls_operator:** Massey Energy Company → La Belle Processing Company; 1990-11-17 to 1992-03-26; source msha-controller-operator-history
- **operator_operates_mine:** Interstate Thermal Energy Conversion Corp → La Belle Site; 1992-03-27 to 1996-09-12; source msha-controller-operator-history
- **controller_controls_operator:** Michael P  Carlow et al → Interstate Thermal Energy Conversion Corp; 1992-03-27 to 1996-09-12; source msha-controller-operator-history
- **controller_controls_operator:** Thomas M  Hull et al → Interstate Thermal Energy Conversion Corp; 1992-03-27 to 1996-09-12; source msha-controller-operator-history
- **operator_operates_mine:** Matt Canestrale Contracting Inc → La Belle Site; 1996-09-13 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Matthew  Canestrale → La Belle Site; 1996-09-13 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Matthew  Canestrale → Matt Canestrale Contracting Inc; 1996-09-13 to current/open; source msha-controller-operator-history