# Relationship history for MSHA mine 2902236

Current hierarchy: **Mesa Verde Enterprises Holdings → Aggregate Technologies LLC (AGGTEC) → Crusher #3**

- 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

- **controller_controls_mine:** Randy  Rabon → Crusher #3; 1997-03-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Mesa Verde Ent. , Inc. → Crusher #3; 2002-03-15 to 2022-02-01; source msha-controller-operator-history
- **controller_controls_operator:** Randy  Rabon → Mesa Verde Ent. , Inc.; 2002-03-15 to 2022-02-01; source msha-controller-operator-history
- **controller_controls_mine:** Jeffrey G  Rabon et al → Crusher #3; 2015-07-18 to 2025-04-07; source msha-controller-operator-history
- **operator_operates_mine:** Aggregate Technologies LLC (AGGTEC) → Crusher #3; 2022-02-02 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Jeffrey G  Rabon et al → Aggregate Technologies LLC (AGGTEC); 2022-02-02 to 2025-04-07; source msha-controller-operator-history
- **controller_controls_mine:** Mesa Verde Enterprises Holdings → Crusher #3; 2025-04-08 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Mesa Verde Enterprises Holdings → Aggregate Technologies LLC (AGGTEC); 2025-04-08 to current/open; source msha-controller-operator-history