# Relationship history for MSHA mine 1102066

Current hierarchy: **Heil Edward F → E & E Hauling Inc → Baldmound Pit Site No 5**

- 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:** Illinois Material Corp → Baldmound Pit Site No 5; 1950-01-01 to 1980-05-13; source msha-controller-operator-history
- **controller_controls_mine:** Sirek Ted Excavating Company Inc → Baldmound Pit Site No 5; 1950-01-01 to 1980-05-13; source msha-controller-operator-history
- **controller_controls_operator:** Sirek Ted Excavating Company Inc → Illinois Material Corp; 1950-01-01 to 1980-05-13; source msha-controller-operator-history
- **controller_controls_mine:** Heil Edward F → Baldmound Pit Site No 5; 1950-01-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** E & E Hauling Inc → Baldmound Pit Site No 5; 1980-05-14 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Heil Edward F → E & E Hauling Inc; 1980-05-14 to current/open; source msha-controller-operator-history