# Relationship history for MSHA mine 4407407

Current hierarchy: **Matthew S Bolling; Rebecca F Bolling → RESOURCE MGMT. & RECOVERY LLC → AUGER NO. 145**

- 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 et al → AUGER NO. 145; 2016-09-15 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** RESOURCE MGMT. & RECOVERY LLC → AUGER NO. 145; 2021-04-07 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Matthew S Bolling et al → RESOURCE MGMT. & RECOVERY LLC; 2021-04-07 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Rebecca F Bolling et al → RESOURCE MGMT. & RECOVERY LLC; 2021-04-07 to current/open; source msha-controller-operator-history