# Relationship history for MSHA mine 4105429

Current hierarchy: **Kevin  Collier; John  Nelson → Force Sand, LLC → Force Sand Pleasanton**

- 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

- **controller_controls_mine:** Edmond Stillman  Maxon IV → Force Sand Pleasanton; 2017-02-28 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Stillman Enterprises → Force Sand Pleasanton; 2019-05-02 to 2020-02-29; source msha-controller-operator-history
- **controller_controls_operator:** Edmond Stillman  Maxon IV → Stillman Enterprises; 2019-05-02 to 2020-02-29; source msha-controller-operator-history
- **operator_operates_mine:** Elinx Corporation → Force Sand Pleasanton; 2020-03-01 to 2022-12-15; source msha-controller-operator-history
- **controller_controls_mine:** Gary Wayne  Bell et al → Force Sand Pleasanton; 2020-03-01 to 2022-02-23; source msha-controller-operator-history
- **controller_controls_operator:** Gary Wayne  Bell et al → Elinx Corporation; 2020-03-01 to 2022-02-23; source msha-controller-operator-history
- **controller_controls_operator:** Angeliki Nicole  Koliastasis et al → Elinx Corporation; 2020-03-01 to 2022-02-23; source msha-controller-operator-history
- **controller_controls_mine:** Gary  Wayne  Bell → Force Sand Pleasanton; 2022-02-24 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Gary  Wayne  Bell → Elinx Corporation; 2022-02-24 to 2022-12-15; source msha-controller-operator-history
- **operator_operates_mine:** FCI Sand Operations LLC → Force Sand Pleasanton; 2022-12-16 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Kevin  Collier et al → Force Sand Pleasanton; 2022-12-16 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Kevin  Collier et al → FCI Sand Operations LLC; 2022-12-16 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** John  Nelson et al → FCI Sand Operations LLC; 2022-12-16 to current/open; source msha-controller-operator-history