# Relationship history for MSHA mine 4103312

Current hierarchy: **Dix R  Turnbow; Ronnie  Hinze → Superior Minerals, LLC → Superior  07 & 18**

- Valid-time bounds: inclusive, date granularity
- Null end: open-ended in the upstream history row; not independent proof of present control
- Transaction-time observation: 2026-10-17T05:35:58.500035+00:00

## Valid-time edges

- **operator_operates_mine:** Texas Bentonite L C → Superior  07 & 18; 1985-04-01 to 2002-02-03; source msha-controller-operator-history
- **controller_controls_mine:** Billy P  Mc Kinney et al → Superior  07 & 18; 1985-04-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Billy P  Mc Kinney et al → Texas Bentonite L C; 1985-04-01 to 2002-02-03; source msha-controller-operator-history
- **controller_controls_operator:** Carl  McWherter et al → Texas Bentonite L C; 1985-04-01 to 2002-02-03; source msha-controller-operator-history
- **operator_operates_mine:** Superior Minerals, LLC → Superior  07 & 18; 2002-02-04 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Ronnie  Hinze et al → Superior  07 & 18; 2002-02-04 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Ronnie  Hinze et al → Superior Minerals, LLC; 2002-02-04 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Dix R  Turnbow et al → Superior Minerals, LLC; 2002-02-04 to current/open; source msha-controller-operator-history