# Relationship history for MSHA mine 0404916

Current hierarchy: **Jonathan D  Hove → Agcon Inc. → Oro Grande Pit**

- 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:** Daily Transit Mix Corp → Oro Grande Pit; 1988-01-01 to 1992-03-05; source msha-controller-operator-history
- **controller_controls_mine:** Dave  Daily → Oro Grande Pit; 1988-01-01 to 1992-03-05; source msha-controller-operator-history
- **controller_controls_operator:** Dave  Daily → Daily Transit Mix Corp; 1988-01-01 to 1992-03-05; source msha-controller-operator-history
- **operator_operates_mine:** Agcon Inc. → Oro Grande Pit; 1992-03-06 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Jonathan D  Hove → Oro Grande Pit; 1992-03-06 to 2010-10-04; source msha-controller-operator-history
- **controller_controls_operator:** Jonathan D  Hove → Agcon Inc.; 1992-03-06 to 2010-10-04; source msha-controller-operator-history
- **controller_controls_mine:** Robert E  Hove et al → Oro Grande Pit; 2010-10-05 to 2019-12-30; source msha-controller-operator-history
- **controller_controls_operator:** Robert E  Hove et al → Agcon Inc.; 2010-10-05 to 2019-12-30; source msha-controller-operator-history
- **controller_controls_operator:** Jonathan D  Hove et al → Agcon Inc.; 2010-10-05 to 2019-12-30; source msha-controller-operator-history
- **controller_controls_mine:** Jonathan D  Hove → Oro Grande Pit; 2019-12-31 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Jonathan D  Hove → Agcon Inc.; 2019-12-31 to current/open; source msha-controller-operator-history