# Relationship history for MSHA mine 1516489

Current hierarchy: **Lake Arvil → Belva Contracting Company → No 2**

- 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:** Lake Arvil Et Al → No 2; 1987-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Warfield Larry Et Al → No 2; 1988-05-20 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Raider Mining Company → No 2; 1988-09-01 to 1988-11-06; source msha-controller-operator-history
- **controller_controls_operator:** Warfield Larry Et Al → Raider Mining Company; 1988-09-01 to 1988-11-06; source msha-controller-operator-history
- **operator_operates_mine:** Ranco Enterprises → No 2; 1988-11-07 to 1989-04-18; source msha-controller-operator-history
- **controller_controls_mine:** Mills Randy Et Al → No 2; 1988-11-07 to 1989-04-18; source msha-controller-operator-history
- **controller_controls_operator:** Mills Randy Et Al → Ranco Enterprises; 1988-11-07 to 1989-04-18; source msha-controller-operator-history
- **operator_operates_mine:** Belva Contracting Company → No 2; 1989-04-19 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Lake Arvil Et Al → Belva Contracting Company; 1989-04-19 to current/open; source msha-controller-operator-history