# Relationship history for MSHA mine 1513841

Current hierarchy: **Carroll Joe & Troy Abner → Carroll Trucking Company → No 2 Strip**

- 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:** Carroll Joe & Troy Abner → No 2 Strip; 1982-11-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Lay & Reece Coal Company → No 2 Strip; 1982-11-01 to 1983-03-08; source msha-controller-operator-history
- **controller_controls_mine:** Lay Paul-Darrell Reece Et Al → No 2 Strip; 1982-11-01 to 1983-03-08; source msha-controller-operator-history
- **controller_controls_operator:** Lay Paul-Darrell Reece Et Al → Lay & Reece Coal Company; 1982-11-01 to 1983-03-08; source msha-controller-operator-history
- **operator_operates_mine:** Carroll Trucking Company → No 2 Strip; 1983-03-09 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Carroll Joe & Troy Abner → Carroll Trucking Company; 1983-03-09 to current/open; source msha-controller-operator-history