# Relationship history for MSHA mine 3003569

Current hierarchy: **Luci  Fernandez → Oak Ridge Sand & Gravel → OAK RIDGE SAND & GRAVEL**

- Valid-time bounds: inclusive, date granularity
- Null end: open-ended in the upstream history row; not independent proof of present control
- Transaction-time observation: 2026-10-18T09:31:49.615908+00:00

## Valid-time edges

- **operator_operates_mine:** Jim Magielda Construction → OAK RIDGE SAND & GRAVEL; 2006-11-21 to 2024-05-12; source msha-controller-operator-history
- **controller_controls_mine:** Jim  Magielda → OAK RIDGE SAND & GRAVEL; 2006-11-21 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Jim  Magielda → Jim Magielda Construction; 2006-11-21 to 2024-05-12; source msha-controller-operator-history
- **operator_operates_mine:** Oak Ridge Sand & Gravel → OAK RIDGE SAND & GRAVEL; 2024-05-13 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Luci  Fernandez → OAK RIDGE SAND & GRAVEL; 2024-05-13 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Luci  Fernandez → Oak Ridge Sand & Gravel; 2024-05-13 to current/open; source msha-controller-operator-history