# Relationship history for MSHA mine 3304041

Current hierarchy: **James P  Jurgensen II; Jacqueline J  Alf; Jason R  Jurgensen → Melvin Stone Company → Sands Hill**

- 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:** Clinton Stone Inc → Sands Hill; 1986-01-01 to 2007-12-14; source msha-controller-operator-history
- **controller_controls_mine:** Bonny  Huffman → Sands Hill; 1986-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Bonny  Huffman → Clinton Stone Inc; 1986-01-01 to 2007-12-14; source msha-controller-operator-history
- **controller_controls_mine:** James P  Jurgensen → Sands Hill; 1999-08-06 to 2018-04-30; source msha-controller-operator-history
- **operator_operates_mine:** Clinton Stone LLC → Sands Hill; 2007-12-15 to 2018-04-30; source msha-controller-operator-history
- **controller_controls_mine:** Wexford Capital LLC → Sands Hill; 2007-12-15 to 2010-10-04; source msha-controller-operator-history
- **controller_controls_operator:** Wexford Capital LLC → Clinton Stone LLC; 2007-12-15 to 2010-10-04; source msha-controller-operator-history
- **controller_controls_mine:** Rhino Resource Partners LP → Sands Hill; 2010-10-05 to 2017-11-07; source msha-controller-operator-history
- **controller_controls_operator:** Rhino Resource Partners LP → Clinton Stone LLC; 2010-10-05 to 2017-11-07; source msha-controller-operator-history
- **controller_controls_mine:** Charlie  Slykhuis et al → Sands Hill; 2017-11-08 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Charlie  Slykhuis et al → Clinton Stone LLC; 2017-11-08 to 2018-04-30; source msha-controller-operator-history
- **controller_controls_operator:** Shannon  Burnett et al → Clinton Stone LLC; 2017-11-08 to 2018-04-30; source msha-controller-operator-history
- **operator_operates_mine:** Melvin Stone Company → Sands Hill; 2018-05-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Jacqueline J  Alf et al → Sands Hill; 2018-05-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Jacqueline J  Alf et al → Melvin Stone Company; 2018-05-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Jason R  Jurgensen et al → Melvin Stone Company; 2018-05-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** James P  Jurgensen II et al → Melvin Stone Company; 2018-05-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** James P  Jurgensen → Melvin Stone Company; 2018-05-01 to 2018-04-30; source msha-controller-operator-history