# Relationship history for MSHA mine 1512760

Current hierarchy: **Loveday Larry → Loveday Coal Company Inc → Mine #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: 2026-10-13T11:19:05.459773+00:00

## Valid-time edges

- **operator_operates_mine:** Loveday Coal Company Inc → Mine #1; 1981-03-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Loveday Larry Et Al → Mine #1; 1981-03-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Loveday Larry Et Al → Loveday Coal Company Inc; 1981-03-01 to current/open; source msha-controller-operator-history