# Relationship history for MSHA mine 4103985

Current hierarchy: **Shawn  Pitsch → TP Caliche Inc → Bovina**

- 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:** County Of Bailey → Bovina; 1998-03-01 to 2008-01-30; source msha-controller-operator-history
- **controller_controls_mine:** Bailey County-TX → Bovina; 1998-03-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Bailey County-TX → County Of Bailey; 1998-03-01 to 2008-01-30; source msha-controller-operator-history
- **operator_operates_mine:** Rock It Science Crushing → Bovina; 2008-01-31 to 2023-11-14; source msha-controller-operator-history
- **controller_controls_mine:** Anthony  Rhodes et al → Bovina; 2008-01-31 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Anthony  Rhodes et al → Rock It Science Crushing; 2008-01-31 to 2023-11-14; source msha-controller-operator-history
- **controller_controls_operator:** Jon  Barnett et al → Rock It Science Crushing; 2008-01-31 to 2023-11-14; source msha-controller-operator-history
- **operator_operates_mine:** TP Caliche Inc → Bovina; 2023-11-15 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Dustin  Thompson et al → Bovina; 2023-11-15 to 2025-01-31; source msha-controller-operator-history
- **controller_controls_operator:** Dustin  Thompson et al → TP Caliche Inc; 2023-11-15 to 2025-01-31; source msha-controller-operator-history
- **controller_controls_operator:** Shawn  Pitsch et al → TP Caliche Inc; 2023-11-15 to 2025-01-31; source msha-controller-operator-history
- **controller_controls_mine:** Shawn  Pitsch → Bovina; 2025-02-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Shawn  Pitsch → TP Caliche Inc; 2025-02-01 to current/open; source msha-controller-operator-history