# Relationship history for MSHA mine 3607758

Current hierarchy: **Steven D  Cotler → Locust Valley Culm Company LLC → Culm Co. #1**

- 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:** Jett Contracting Company → Culm Co. #1; 1985-11-01 to 2012-07-16; source msha-controller-operator-history
- **controller_controls_mine:** Joseph P  Cromyak → Culm Co. #1; 1985-11-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Joseph P  Cromyak → Jett Contracting Company; 1985-11-01 to 2012-07-16; source msha-controller-operator-history
- **controller_controls_operator:** Dorothy A  Cromyak → Jett Contracting Company; 1985-11-01 to 2012-07-16; source msha-controller-operator-history
- **operator_operates_mine:** Locust Valley Culm Company LLC → Culm Co. #1; 2012-07-17 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Steven D  Cotler → Culm Co. #1; 2012-07-17 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Steven D  Cotler → Locust Valley Culm Company LLC; 2012-07-17 to current/open; source msha-controller-operator-history