# Relationship history for MSHA mine 3800741

Current hierarchy: **Michael  Muckenfuss; April  Muckenfuss → E Sand and Minerals, Inc. → Diam Mine #3**

- 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:** Dorchester Logistics, Inc → Diam Mine #3; 2013-02-05 to 2023-07-31; source msha-controller-operator-history
- **controller_controls_mine:** Rodney  Burbage → Diam Mine #3; 2013-02-05 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Rodney  Burbage → Dorchester Logistics, Inc; 2013-02-05 to 2023-07-31; source msha-controller-operator-history
- **operator_operates_mine:** E Sand and Minerals, Inc. → Diam Mine #3; 2023-08-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Michael  Muckenfuss et al → Diam Mine #3; 2023-08-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Michael  Muckenfuss et al → E Sand and Minerals, Inc.; 2023-08-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** April  Muckenfuss et al → E Sand and Minerals, Inc.; 2023-08-01 to current/open; source msha-controller-operator-history