# Relationship history for MSHA mine 3004155

Current hierarchy: **Shawn D Malone → Shawn Malone Excavating Inc → Peat Bed Rd Pit - Granby**

- 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:** Shawn Malone Excavating Inc → Peat Bed Rd Pit - Granby; 2025-05-04 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Shawn D Malone → Peat Bed Rd Pit - Granby; 2025-05-04 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Shawn D Malone → Shawn Malone Excavating Inc; 2025-05-04 to current/open; source msha-controller-operator-history