# Relationship history for MSHA mine 1518737

Current hierarchy: **Matthew S Bolling; Rebecca F Bolling → RESOURCE MANAGEMENT & RECOVERY LLC → Auger No. 29**

- 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:** Matthew S  Bolling → Auger No. 29; 2000-09-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Bolling Excavating LLC → Auger No. 29; 2004-03-24 to 2016-09-14; source msha-controller-operator-history
- **controller_controls_operator:** Matthew S  Bolling → Bolling Excavating LLC; 2004-03-24 to 2016-09-14; source msha-controller-operator-history
- **operator_operates_mine:** RESOURCE MANAGEMENT & RECOVERY LLC → Auger No. 29; 2016-09-15 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Matthew S Bolling et al → Auger No. 29; 2016-09-15 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Matthew S Bolling et al → RESOURCE MANAGEMENT & RECOVERY LLC; 2016-09-15 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Rebecca F Bolling et al → RESOURCE MANAGEMENT & RECOVERY LLC; 2016-09-15 to current/open; source msha-controller-operator-history