# Relationship history for MSHA mine 4103082

Current hierarchy: **Randy  Hood → E E Hood & Sons, Inc. → Mobile Crusher No 1**

- 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:** Randy  Hood → Mobile Crusher No 1; 1950-01-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** E E Hood & Sons Construction Co Inc → Mobile Crusher No 1; 1981-06-01 to 2009-07-22; source msha-controller-operator-history
- **controller_controls_operator:** Randy  Hood → E E Hood & Sons Construction Co Inc; 1981-06-01 to 2009-07-22; source msha-controller-operator-history
- **controller_controls_mine:** Randy  Hood → Mobile Crusher No 1; 1992-10-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** E E Hood & Sons, Inc. → Mobile Crusher No 1; 2009-07-23 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Randy  Hood → E E Hood & Sons, Inc.; 2009-07-23 to current/open; source msha-controller-operator-history