# Relationship history for MSHA mine 1518562

Current hierarchy: **Jack H Ealy; Ralph  Napier; John D North   -  JackrockLLC only8/27/99-5/ → K & D Mining → No. 1 Wallins**

- 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:** Joseph T  Bennett  et al → No. 1 Wallins; 2002-02-15 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Rex Coal Co. Inc. → No. 1 Wallins; 2002-08-23 to 2008-03-18; source msha-controller-operator-history
- **controller_controls_operator:** Joseph T  Bennett  et al → Rex Coal Co. Inc.; 2002-08-23 to 2008-03-18; source msha-controller-operator-history
- **operator_operates_mine:** K & D Mining → No. 1 Wallins; 2008-03-19 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Ralph  Napier et al → No. 1 Wallins; 2008-03-19 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Ralph  Napier et al → K & D Mining; 2008-03-19 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** John D North et al -  JackrockLLC only8/27/99-5/3/04 → K & D Mining; 2008-03-19 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Jack H Ealy et al → K & D Mining; 2008-03-19 to current/open; source msha-controller-operator-history