# Relationship history for MSHA mine 2200502

Current hierarchy: **Paul E Graber; Craig L Graber; Jerel A Yoder → Whiterock, LLC → Whiterock, LLC**

- 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:** Harold Lee & Sons Lime Company Inc → Whiterock, LLC; 1979-01-01 to 2022-09-06; source msha-controller-operator-history
- **controller_controls_mine:** Harold  Lee Sr → Whiterock, LLC; 1979-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Harold  Lee Sr → Harold Lee & Sons Lime Company Inc; 1979-01-01 to 2022-09-06; source msha-controller-operator-history
- **operator_operates_mine:** Whiterock, LLC → Whiterock, LLC; 2022-09-07 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Jerel A Yoder et al → Whiterock, LLC; 2022-09-07 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Jerel A Yoder et al → Whiterock, LLC; 2022-09-07 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Paul E Graber et al → Whiterock, LLC; 2022-09-07 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Craig L Graber et al → Whiterock, LLC; 2022-09-07 to current/open; source msha-controller-operator-history