# Relationship history for MSHA mine 4103068

Current hierarchy: **Zachary  Tausch; Vernon  Tausch → Far South Mining LLC → Bandera 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

- **controller_controls_mine:** Timothy D  Word et al → Bandera Pit; 1978-09-01 to 2019-03-31; source msha-controller-operator-history
- **operator_operates_mine:** Dean Word Company → Bandera Pit; 1981-05-01 to 1988-11-09; source msha-controller-operator-history
- **controller_controls_operator:** Timothy D  Word et al → Dean Word Company; 1981-05-01 to 1988-11-09; source msha-controller-operator-history
- **operator_operates_mine:** Roger D Stevens Contractor Inc → Bandera Pit; 1988-11-10 to 1999-05-12; source msha-controller-operator-history
- **controller_controls_mine:** Roger D  Stevens → Bandera Pit; 1988-11-10 to 1999-05-12; source msha-controller-operator-history
- **controller_controls_operator:** Roger D  Stevens → Roger D Stevens Contractor Inc; 1988-11-10 to 1999-05-12; source msha-controller-operator-history
- **operator_operates_mine:** Roger D Stevens Contractor Inc → Bandera Pit; 1999-05-13 to 2022-05-01; source msha-controller-operator-history
- **controller_controls_mine:** Evert H  McDougal Jr → Bandera Pit; 1999-05-13 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Evert H  McDougal Jr → Roger D Stevens Contractor Inc; 1999-05-13 to 2022-05-01; source msha-controller-operator-history
- **controller_controls_mine:** Vernon  Tausch  et al → Bandera Pit; 2011-10-24 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Forrest  Word et al → Bandera Pit; 2019-04-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Forrest  Word et al → Dean Word Company; 2019-04-01 to 1988-11-09; source msha-controller-operator-history
- **controller_controls_operator:** Timothy Dean Word III et al → Dean Word Company; 2019-04-01 to 1988-11-09; source msha-controller-operator-history
- **controller_controls_operator:** Bryan  Word et al → Dean Word Company; 2019-04-01 to 1988-11-09; source msha-controller-operator-history
- **controller_controls_operator:** Suzanne  Word et al → Dean Word Company; 2019-04-01 to 1988-11-09; source msha-controller-operator-history
- **operator_operates_mine:** Far South Mining LLC → Bandera Pit; 2022-05-02 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Vernon  Tausch  et al → Far South Mining LLC; 2022-05-02 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Zachary  Tausch  et al → Far South Mining LLC; 2022-05-02 to current/open; source msha-controller-operator-history