# Relationship history for MSHA mine 1513401

Current hierarchy: **Larry  Cantrell → Cedar Grove Mining Inc → No 2 Mine**

- 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:** Transcontinental Energy Corp → No 2 Mine; 1950-01-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Transcontinental Coal Company Inc → No 2 Mine; 1982-03-01 to 1983-06-26; source msha-controller-operator-history
- **controller_controls_operator:** Transcontinental Energy Corp → Transcontinental Coal Company Inc; 1982-03-01 to 1983-06-26; source msha-controller-operator-history
- **controller_controls_mine:** Larry  Cantrell → No 2 Mine; 1983-03-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Cedar Grove Mining Inc → No 2 Mine; 1983-06-27 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Larry  Cantrell → Cedar Grove Mining Inc; 1983-06-27 to current/open; source msha-controller-operator-history