# Relationship history for MSHA mine 3607061

Current hierarchy: **Seger Jay M → B J Coal Company → 12 Vein Slope**

- 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:** Glosek Edward Et Al → 12 Vein Slope; 1974-01-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Sky View Coal Company → 12 Vein Slope; 1980-11-01 to 1982-08-24; source msha-controller-operator-history
- **controller_controls_operator:** Glosek Edward Et Al → Sky View Coal Company; 1980-11-01 to 1982-08-24; source msha-controller-operator-history
- **operator_operates_mine:** B J Coal Company → 12 Vein Slope; 1982-08-25 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Seger Jay M → 12 Vein Slope; 1982-08-25 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Seger Jay M → B J Coal Company; 1982-08-25 to current/open; source msha-controller-operator-history