# Relationship history for MSHA mine 1800626

Current hierarchy: **Moran Thomas L → T L Moran Inc → T L Moran**

- 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:** Kennedy H L → T L Moran; 1973-12-21 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** H L Kennedy Coal Company → T L Moran; 1976-10-01 to 1978-06-05; source msha-controller-operator-history
- **controller_controls_operator:** Kennedy H L → H L Kennedy Coal Company; 1976-10-01 to 1978-06-05; source msha-controller-operator-history
- **operator_operates_mine:** T L Moran Inc → T L Moran; 1978-06-06 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Moran Thomas L → T L Moran; 1978-06-06 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Moran Thomas L → T L Moran Inc; 1978-06-06 to current/open; source msha-controller-operator-history