# Relationship history for MSHA mine 1513569

Current hierarchy: **Leroy  Lackey → H E C Coal Company Inc → H E C Coal Company #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:** H E C Coal Company Inc → H E C Coal Company #1; 1982-06-01 to 1991-06-30; source msha-controller-operator-history
- **controller_controls_mine:** Everidge Bobby Dale Hall Et Al → H E C Coal Company #1; 1982-06-01 to 1991-06-30; source msha-controller-operator-history
- **controller_controls_operator:** Everidge Bobby Dale Hall Et Al → H E C Coal Company Inc; 1982-06-01 to 1991-06-30; source msha-controller-operator-history
- **operator_operates_mine:** H E C Coal Company Inc → H E C Coal Company #1; 1991-07-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Leroy  Lackey et al → H E C Coal Company #1; 1991-07-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Leroy  Lackey et al → H E C Coal Company Inc; 1991-07-01 to current/open; source msha-controller-operator-history