# Relationship history for MSHA mine 0505114

Current hierarchy: **CCI  (Clyde Companies Inc) → Scott Contracting, Inc. → SCI-001**

- 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:** Scott Contracting, Inc. → SCI-001; 2019-10-22 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** CCI  (Clyde Companies Inc) → SCI-001; 2019-10-22 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** CCI  (Clyde Companies Inc) → Scott Contracting, Inc.; 2019-10-22 to current/open; source msha-controller-operator-history