# Relationship history for MSHA mine 1513785

Current hierarchy: **Bennentt Vernon & Verdin Perkins → B & P Coal Company → No 1 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: 2026-10-13T11:19:05.459773+00:00

## Valid-time edges

- **operator_operates_mine:** S & S Energy → No 1 Mine; 1982-10-01 to 1983-03-29; source msha-controller-operator-history
- **controller_controls_mine:** Smith Shorty-Don Bingham Et Al → No 1 Mine; 1982-10-01 to 1983-12-15; source msha-controller-operator-history
- **controller_controls_operator:** Smith Shorty-Don Bingham Et Al → S & S Energy; 1982-10-01 to 1983-03-29; source msha-controller-operator-history
- **operator_operates_mine:** V & V Coal Company → No 1 Mine; 1983-03-30 to 1983-09-18; source msha-controller-operator-history
- **controller_controls_mine:** Loveday Larry G → No 1 Mine; 1983-03-30 to 1983-09-18; source msha-controller-operator-history
- **controller_controls_operator:** Loveday Larry G → V & V Coal Company; 1983-03-30 to 1983-09-18; source msha-controller-operator-history
- **operator_operates_mine:** B & P Coal Company → No 1 Mine; 1983-09-19 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Bennentt Vernon & Verdin Perkins → No 1 Mine; 1983-09-19 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Bennentt Vernon & Verdin Perkins → B & P Coal Company; 1983-09-19 to current/open; source msha-controller-operator-history