# Relationship history for MSHA mine 0801312

Current hierarchy: **John R  Clark; Connie  Clark → Clark Site Contractors, Inc. → PIT 3**

- 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:** Connie  Clark  et al → PIT 3; 1991-04-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Clark Site Contractors, Inc. → PIT 3; 2002-06-11 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Connie  Clark  et al → Clark Site Contractors, Inc.; 2002-06-11 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** John R  Clark  et al → Clark Site Contractors, Inc.; 2002-06-11 to current/open; source msha-controller-operator-history