# Relationship history for MSHA mine 3401192

Current hierarchy: **Mc Clain County-Ok → Mc Clain County Board Of Commissioners → MCCLAIN COUNTY PITS**

- 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

- **operator_operates_mine:** Davis & Douthit → MCCLAIN COUNTY PITS; 1979-01-01 to 2000-11-26; source msha-controller-operator-history
- **controller_controls_mine:** David Bobby W & Jim R Douthit → MCCLAIN COUNTY PITS; 1979-01-01 to 2000-11-26; source msha-controller-operator-history
- **controller_controls_operator:** David Bobby W & Jim R Douthit → Davis & Douthit; 1979-01-01 to 2000-11-26; source msha-controller-operator-history
- **operator_operates_mine:** Mc Clain County Board Of Commissioners → MCCLAIN COUNTY PITS; 2000-11-27 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Mc Clain County-Ok → MCCLAIN COUNTY PITS; 2000-11-27 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Mc Clain County-Ok → Mc Clain County Board Of Commissioners; 2000-11-27 to current/open; source msha-controller-operator-history