# Relationship history for MSHA mine 4600905

Current hierarchy: **James  Petitte; Thomas  Kopnski → Victory Mining Company → Ron #2**

- 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:** Ron Coal Company Inc → Ron #2; 1950-01-01 to 1977-04-21; source msha-controller-operator-history
- **controller_controls_mine:** Petitte James → Ron #2; 1950-01-01 to 1977-04-21; source msha-controller-operator-history
- **controller_controls_operator:** Petitte James → Ron Coal Company Inc; 1950-01-01 to 1977-04-21; source msha-controller-operator-history
- **operator_operates_mine:** Ron Coal Company Inc → Ron #2; 1977-04-22 to 1979-04-23; source msha-controller-operator-history
- **controller_controls_mine:** Maidsville Coal Company Inc → Ron #2; 1977-04-22 to 1979-04-23; source msha-controller-operator-history
- **controller_controls_operator:** Maidsville Coal Company Inc → Ron Coal Company Inc; 1977-04-22 to 1979-04-23; source msha-controller-operator-history
- **operator_operates_mine:** Victory Mining Company → Ron #2; 1979-04-24 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** James  Petitte et al → Ron #2; 1979-04-24 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** James  Petitte et al → Victory Mining Company; 1979-04-24 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Thomas  Kopnski et al → Victory Mining Company; 1979-04-24 to current/open; source msha-controller-operator-history