# Relationship history for MSHA mine 1511064

Current hierarchy: **Jones Fred → J & J Energy Corp → No 2 Mine**

- 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:** Hoskins & Morgan Coal Company → No 2 Mine; 1978-01-01 to 1978-10-19; source msha-controller-operator-history
- **controller_controls_mine:** Hoskins Elden → No 2 Mine; 1978-01-01 to 1978-10-19; source msha-controller-operator-history
- **controller_controls_operator:** Hoskins Elden → Hoskins & Morgan Coal Company; 1978-01-01 to 1978-10-19; source msha-controller-operator-history
- **operator_operates_mine:** J & J Energy Corp → No 2 Mine; 1978-10-20 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Jones Fred → No 2 Mine; 1978-10-20 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Jones Fred → J & J Energy Corp; 1978-10-20 to current/open; source msha-controller-operator-history