# Relationship history for MSHA mine 0505085

Current hierarchy: **Mexted Enterprises Inc; RGV LLC; Heartland Environmental Services LLC → Heartland Aggregate Mining → Heartland Aggregate Mining**

- 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:** Rosebud Excavating, Inc. → Heartland Aggregate Mining; 2018-01-03 to 2021-01-04; source msha-controller-operator-history
- **controller_controls_mine:** John  Rose → Heartland Aggregate Mining; 2018-01-03 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** John  Rose → Rosebud Excavating, Inc.; 2018-01-03 to 2021-01-04; source msha-controller-operator-history
- **operator_operates_mine:** Heartland Aggregate Mining → Heartland Aggregate Mining; 2021-01-05 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Heartland Environmental Services LLC et al → Heartland Aggregate Mining; 2021-01-05 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Heartland Environmental Services LLC et al → Heartland Aggregate Mining; 2021-01-05 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** RGV LLC et al → Heartland Aggregate Mining; 2021-01-05 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Mexted Enterprises Inc et al → Heartland Aggregate Mining; 2021-01-05 to current/open; source msha-controller-operator-history