# Relationship history for MSHA mine 1202150

Current hierarchy: **Josh A  Molen; Heather M  Molen → Eshelman Excavating Inc → Eshelman 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: 2026-10-17T05:35:58.500035+00:00

## Valid-time edges

- **operator_operates_mine:** Eshelman Excavating Inc → Eshelman Sand & Gravel; 1993-12-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Josh A  Molen et al → Eshelman Sand & Gravel; 1993-12-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Josh A  Molen et al → Eshelman Excavating Inc; 1993-12-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Heather M  Molen et al → Eshelman Excavating Inc; 1993-12-01 to current/open; source msha-controller-operator-history