# Relationship history for MSHA mine 1513953

Current hierarchy: **Little Jack - Ray Phillips → Blp Coal Company Inc → No 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:** Lynn Coal Company → No 1; 1983-02-01 to 1986-09-22; source msha-controller-operator-history
- **controller_controls_mine:** France Kermit & Stanley Osborne → No 1; 1983-02-01 to 1986-09-22; source msha-controller-operator-history
- **controller_controls_operator:** France Kermit & Stanley Osborne → Lynn Coal Company; 1983-02-01 to 1986-09-22; source msha-controller-operator-history
- **operator_operates_mine:** Blp Coal Company Inc → No 1; 1986-09-23 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Little Jack - Ray Phillips Et Al → No 1; 1986-09-23 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Little Jack - Ray Phillips Et Al → Blp Coal Company Inc; 1986-09-23 to current/open; source msha-controller-operator-history