# Relationship history for MSHA mine 1518560

Current hierarchy: **Johnny  Goley; David  Grubb → Jellico Enterprise, LLC → Davis Branch**

- 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:** Jackie  Hembree → Davis Branch; 1997-02-17 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Headache Coal Co. Inc. → Davis Branch; 2002-08-08 to 2003-05-26; source msha-controller-operator-history
- **controller_controls_operator:** Jackie  Hembree → Headache Coal Co. Inc.; 2002-08-08 to 2003-05-26; source msha-controller-operator-history
- **operator_operates_mine:** Jellico Enterprise, LLC → Davis Branch; 2003-05-27 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** David  Grubb et al → Davis Branch; 2003-05-27 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** David  Grubb et al → Jellico Enterprise, LLC; 2003-05-27 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Johnny  Goley et al → Jellico Enterprise, LLC; 2003-05-27 to current/open; source msha-controller-operator-history