# Relationship history for MSHA mine 3607819

Current hierarchy: **Parnell James → James Parnell → Mateosky Strip**

- 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:** Parnell James → Mateosky Strip; 1977-03-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** James Parnell → Mateosky Strip; 1986-07-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Parnell James → James Parnell; 1986-07-01 to current/open; source msha-controller-operator-history