# Relationship history for MSHA mine 1514459

Current hierarchy: **Lane Cecil → Doc Coal Company → 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

- **controller_controls_mine:** Vires Darrell & Leo → No 1; 1982-09-01 to 2001-04-06; source msha-controller-operator-history
- **operator_operates_mine:** Vires Coal Sales Inc → No 1; 1984-02-01 to 1984-07-12; source msha-controller-operator-history
- **controller_controls_operator:** Vires Darrell & Leo → Vires Coal Sales Inc; 1984-02-01 to 1984-07-12; source msha-controller-operator-history
- **controller_controls_mine:** Baker Gary N → No 1; 1984-02-07 to 1985-08-25; source msha-controller-operator-history
- **operator_operates_mine:** Ivaco Coal Company Inc → No 1; 1984-07-13 to 1985-08-25; source msha-controller-operator-history
- **controller_controls_operator:** Baker Gary N → Ivaco Coal Company Inc; 1984-07-13 to 1985-08-25; source msha-controller-operator-history
- **operator_operates_mine:** Doc Coal Company → No 1; 1985-08-26 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Lane Cecil → No 1; 1985-08-26 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Lane Cecil → Doc Coal Company; 1985-08-26 to current/open; source msha-controller-operator-history