# Relationship history for MSHA mine 4003517

Current hierarchy: **Rogers Group Inc → Rogers Group, Inc. → UC Quarry**

- Valid-time bounds: inclusive, date granularity
- Null end: open-ended in the upstream history row; not independent proof of present control
- Transaction-time observation: 2026-10-18T09:31:49.615908+00:00

## Valid-time edges

- **controller_controls_mine:** Rogers Group Inc → UC Quarry; 1950-01-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Jolly Rogers, LLC → UC Quarry; 2019-04-15 to 2019-11-15; source msha-controller-operator-history
- **controller_controls_mine:** Evan  Dake et al → UC Quarry; 2019-04-15 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Evan  Dake et al → Jolly Rogers, LLC; 2019-04-15 to 2019-11-15; source msha-controller-operator-history
- **controller_controls_operator:** Rick  Dake et al → Jolly Rogers, LLC; 2019-04-15 to 2019-11-15; source msha-controller-operator-history
- **operator_operates_mine:** RQ Materials, LLC → UC Quarry; 2019-11-16 to 2024-04-28; source msha-controller-operator-history
- **controller_controls_mine:** Ozark Holdings LLC et al → UC Quarry; 2019-11-16 to 2020-09-30; source msha-controller-operator-history
- **controller_controls_operator:** Ozark Holdings LLC et al → RQ Materials, LLC; 2019-11-16 to 2020-09-30; source msha-controller-operator-history
- **controller_controls_operator:** RQ Holdings LLC et al → RQ Materials, LLC; 2019-11-16 to 2020-09-30; source msha-controller-operator-history
- **controller_controls_mine:** RQ Holdings LLC → UC Quarry; 2020-10-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** RQ Holdings LLC → RQ Materials, LLC; 2020-10-01 to 2024-04-28; source msha-controller-operator-history
- **operator_operates_mine:** Rogers Group, Inc. → UC Quarry; 2024-04-29 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Rogers Group Inc → Rogers Group, Inc.; 2024-04-29 to current/open; source msha-controller-operator-history