# Relationship history for MSHA mine 4608812

Current hierarchy: **Rufus W West; Joe  Valis → MINE FOUR LLC → MINE FOUR LLC**

- 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:** Harry M  Hylton → MINE FOUR LLC; 1994-03-21 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Patton Inc → MINE FOUR LLC; 1999-11-01 to 2001-02-22; source msha-controller-operator-history
- **controller_controls_operator:** Harry M  Hylton → Patton Inc; 1999-11-01 to 2001-02-22; source msha-controller-operator-history
- **controller_controls_mine:** Carl  Kirk et al → MINE FOUR LLC; 2000-05-11 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Kencole Equipment Inc → MINE FOUR LLC; 2001-02-23 to 2007-04-10; source msha-controller-operator-history
- **controller_controls_mine:** Kennith  Layne et al → MINE FOUR LLC; 2001-02-23 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Kennith  Layne et al → Kencole Equipment Inc; 2001-02-23 to 2007-04-10; source msha-controller-operator-history
- **controller_controls_mine:** Robert  Helton → MINE FOUR LLC; 2007-03-14 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** KWV Operations LLC → MINE FOUR LLC; 2007-04-11 to 2008-10-31; source msha-controller-operator-history
- **controller_controls_operator:** Robert  Helton → KWV Operations LLC; 2007-04-11 to 2008-10-31; source msha-controller-operator-history
- **operator_operates_mine:** Marshall Mining Incorporated → MINE FOUR LLC; 2008-11-01 to 2010-04-27; source msha-controller-operator-history
- **controller_controls_operator:** Carl  Kirk et al → Marshall Mining Incorporated; 2008-11-01 to 2010-04-27; source msha-controller-operator-history
- **operator_operates_mine:** KWV Operations, LLC → MINE FOUR LLC; 2010-04-28 to 2011-02-06; source msha-controller-operator-history
- **controller_controls_operator:** Robert  Helton → KWV Operations, LLC; 2010-04-28 to 2011-02-06; source msha-controller-operator-history
- **operator_operates_mine:** Glen Alum Operations, LLC → MINE FOUR LLC; 2011-02-07 to 2017-05-29; source msha-controller-operator-history
- **controller_controls_mine:** Rufus W West et al → MINE FOUR LLC; 2011-02-07 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Rufus W West et al → Glen Alum Operations, LLC; 2011-02-07 to 2017-05-29; source msha-controller-operator-history
- **controller_controls_operator:** Joe  Valis et al → Glen Alum Operations, LLC; 2011-02-07 to 2017-05-29; source msha-controller-operator-history
- **operator_operates_mine:** MINE FOUR LLC → MINE FOUR LLC; 2017-05-30 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Joe  Valis et al → MINE FOUR LLC; 2017-05-30 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Joe  Valis et al → MINE FOUR LLC; 2017-05-30 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Rufus W West et al → MINE FOUR LLC; 2017-05-30 to current/open; source msha-controller-operator-history