# Relationship history for MSHA mine 1518928

Current hierarchy: **Ron  Runyon → Why Knot, Inc. → 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:** Vicki  Salyer et al → No.1; 1999-08-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Clyde  Mennach et al → No.1; 2005-08-22 to 2006-10-15; source msha-controller-operator-history
- **operator_operates_mine:** Labco, LLC → No.1; 2005-09-26 to 2007-05-21; source msha-controller-operator-history
- **controller_controls_operator:** Vicki  Salyer et al → Labco, LLC; 2005-09-26 to 2007-05-21; source msha-controller-operator-history
- **controller_controls_mine:** Suzette  Meenach et al → No.1; 2006-10-16 to 2013-05-09; source msha-controller-operator-history
- **operator_operates_mine:** Mountain Source Energy LLC → No.1; 2007-05-22 to 2008-05-22; source msha-controller-operator-history
- **controller_controls_operator:** Clyde  Mennach et al → Mountain Source Energy LLC; 2007-05-22 to 2006-10-15; source msha-controller-operator-history
- **controller_controls_operator:** Paul E Alexander et al → Mountain Source Energy LLC; 2007-05-22 to 2006-10-15; source msha-controller-operator-history
- **controller_controls_operator:** Suzette  Meenach et al → Mountain Source Energy LLC; 2007-05-22 to 2008-05-22; source msha-controller-operator-history
- **controller_controls_operator:** Clyde  Meenach  et al → Mountain Source Energy LLC; 2007-05-22 to 2008-05-22; source msha-controller-operator-history
- **operator_operates_mine:** Why Knot, Inc. → No.1; 2008-05-23 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Ron  Runyon → No.1; 2008-05-23 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Ron  Runyon → Why Knot, Inc.; 2008-05-23 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Clyde E  Meenach et al → No.1; 2013-05-10 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Clyde E  Meenach et al → Mountain Source Energy LLC; 2013-05-10 to 2008-05-22; source msha-controller-operator-history
- **controller_controls_operator:** Steven R  Adkins et al → Mountain Source Energy LLC; 2013-05-10 to 2008-05-22; source msha-controller-operator-history