# Relationship history for MSHA mine 0801137

Current hierarchy: **Little Robert → Little Rock Mine Inc → Little Rock Mine Incorporated #2**

- Valid-time bounds: inclusive, date granularity
- Null end: open-ended in the upstream history row; not independent proof of present control
- Transaction-time observation: 2026-10-17T05:35:58.500035+00:00

## Valid-time edges

- **controller_controls_mine:** Little Robert → Little Rock Mine Incorporated #2; 1989-04-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Little Rock Mine Inc → Little Rock Mine Incorporated #2; 1990-03-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Little Robert → Little Rock Mine Inc; 1990-03-01 to current/open; source msha-controller-operator-history