# Relationship history for MSHA mine 0101883

Current hierarchy: **A J  Taft → Dixie Springs Enterprises Inc → Dixie Springs**

- 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:** Taft Coal Company, Inc. → Dixie Springs; 1978-06-01 to 2003-08-10; source msha-controller-operator-history
- **controller_controls_mine:** A J  Taft → Dixie Springs; 1978-06-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** A J  Taft → Taft Coal Company, Inc.; 1978-06-01 to 2003-08-10; source msha-controller-operator-history
- **operator_operates_mine:** Dixie Springs Enterprises Inc → Dixie Springs; 2003-08-11 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** A J  Taft → Dixie Springs; 2003-08-11 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** A J  Taft → Dixie Springs Enterprises Inc; 2003-08-11 to current/open; source msha-controller-operator-history