# Relationship history for MSHA mine 1202072

Current hierarchy: **Dick  Wallace → Wap Company → WAP COMPANY**

- 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:** Wap Company → WAP COMPANY; 1990-04-01 to 1993-03-14; source msha-controller-operator-history
- **controller_controls_mine:** Frank  McClure → WAP COMPANY; 1990-04-01 to 1993-03-14; source msha-controller-operator-history
- **controller_controls_operator:** Frank  McClure → Wap Company; 1990-04-01 to 1993-03-14; source msha-controller-operator-history
- **operator_operates_mine:** Wap Company → WAP COMPANY; 1993-03-15 to 1996-08-12; source msha-controller-operator-history
- **controller_controls_mine:** A-1 Paving & Contracting Inc → WAP COMPANY; 1993-03-15 to 1996-08-12; source msha-controller-operator-history
- **controller_controls_operator:** A-1 Paving & Contracting Inc → Wap Company; 1993-03-15 to 1996-08-12; source msha-controller-operator-history
- **operator_operates_mine:** Wap Company → WAP COMPANY; 1996-08-13 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Dick  Wallace → WAP COMPANY; 1996-08-13 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Dick  Wallace → Wap Company; 1996-08-13 to current/open; source msha-controller-operator-history