# Relationship history for MSHA mine 3800611

Current hierarchy: **Jackson Nelson Ii → Ocean Lakes Construction Inc → Black Creek Company Incorporated**

- Valid-time bounds: inclusive, date granularity
- Null end: open-ended in the upstream history row; not independent proof of present control
- Transaction-time observation: 2026-10-18T09:31:49.615908+00:00

## Valid-time edges

- **operator_operates_mine:** Black Creek Asphalt → Black Creek Company Incorporated; 1986-04-01 to 1991-06-30; source msha-controller-operator-history
- **controller_controls_mine:** Friar Michael W → Black Creek Company Incorporated; 1986-04-01 to 1991-06-30; source msha-controller-operator-history
- **controller_controls_operator:** Friar Michael W → Black Creek Asphalt; 1986-04-01 to 1991-06-30; source msha-controller-operator-history
- **controller_controls_mine:** Jackson Nelson Ii → Black Creek Company Incorporated; 1986-04-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Ocean Lakes Construction Inc → Black Creek Company Incorporated; 1991-07-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Jackson Nelson Ii → Ocean Lakes Construction Inc; 1991-07-01 to current/open; source msha-controller-operator-history