# Relationship history for MSHA mine 3901486

Current hierarchy: **James C  Soukup → Soukup Construction, Inc. → El Dorado Pit**

- 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:** James C  Soukup → El Dorado Pit; 1985-07-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Soukup Construction, Inc. → El Dorado Pit; 2003-07-28 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** James C  Soukup → Soukup Construction, Inc.; 2003-07-28 to current/open; source msha-controller-operator-history