# Relationship history for MSHA mine 1201812

Current hierarchy: **Eddie R  Brown → Theba Corp → Theba #1**

- 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:** Theba Corp → Theba #1; 1980-10-01 to 1983-05-05; source msha-controller-operator-history
- **controller_controls_mine:** Glogower Andrew D & Roy Capps → Theba #1; 1980-10-01 to 1983-05-05; source msha-controller-operator-history
- **controller_controls_operator:** Glogower Andrew D & Roy Capps → Theba Corp; 1980-10-01 to 1983-05-05; source msha-controller-operator-history
- **operator_operates_mine:** Theba Corp → Theba #1; 1983-05-06 to 1984-02-13; source msha-controller-operator-history
- **controller_controls_mine:** Spann Larry D → Theba #1; 1983-05-06 to 1984-02-13; source msha-controller-operator-history
- **controller_controls_operator:** Spann Larry D → Theba Corp; 1983-05-06 to 1984-02-13; source msha-controller-operator-history
- **operator_operates_mine:** Theba Corp → Theba #1; 1984-02-14 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Eddie R  Brown → Theba #1; 1984-02-14 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Eddie R  Brown → Theba Corp; 1984-02-14 to current/open; source msha-controller-operator-history