# Relationship history for MSHA mine 4101225

Current hierarchy: **Randall D  Smith → West Texas Rock Resources LLC → WTRR Pieper Clay 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:** Lone Star Industries Inc → WTRR Pieper Clay Pit; 1950-01-01 to 1989-05-09; source msha-controller-operator-history
- **controller_controls_mine:** Lone Star Industries Inc → WTRR Pieper Clay Pit; 1950-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Lone Star Industries Inc → Lone Star Industries Inc; 1950-01-01 to 1989-05-09; source msha-controller-operator-history
- **controller_controls_mine:** Cliff  Burnett → WTRR Pieper Clay Pit; 1989-05-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Burnett Business → WTRR Pieper Clay Pit; 1989-05-10 to 1993-09-02; source msha-controller-operator-history
- **controller_controls_operator:** Cliff  Burnett → Burnett Business; 1989-05-10 to 1993-09-02; source msha-controller-operator-history
- **controller_controls_mine:** Ann  Allsup → WTRR Pieper Clay Pit; 1993-06-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Performance Unlimited Inc → WTRR Pieper Clay Pit; 1993-09-03 to 2002-04-23; source msha-controller-operator-history
- **controller_controls_operator:** Ann  Allsup → Performance Unlimited Inc; 1993-09-03 to 2002-04-23; source msha-controller-operator-history
- **operator_operates_mine:** Carney Enterprises → WTRR Pieper Clay Pit; 2002-04-24 to 2007-04-23; source msha-controller-operator-history
- **controller_controls_mine:** James  Carney → WTRR Pieper Clay Pit; 2002-04-24 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** James  Carney → Carney Enterprises; 2002-04-24 to 2007-04-23; source msha-controller-operator-history
- **controller_controls_mine:** Randall D  Smith → WTRR Pieper Clay Pit; 2007-02-07 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Carney Enterprises LLC → WTRR Pieper Clay Pit; 2007-04-24 to 2010-10-31; source msha-controller-operator-history
- **controller_controls_mine:** James  Carney → WTRR Pieper Clay Pit; 2007-04-24 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** James  Carney → Carney Enterprises LLC; 2007-04-24 to 2010-10-31; source msha-controller-operator-history
- **operator_operates_mine:** West Texas Rock Resources LLC → WTRR Pieper Clay Pit; 2010-11-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Randall D  Smith → West Texas Rock Resources LLC; 2010-11-01 to current/open; source msha-controller-operator-history