# Relationship history for MSHA mine 1519126

Current hierarchy: **Conrad  Whitaker; Jonathan  Whitaker → DENALI ENERGY GROUP LLC → 39MC**

- 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:** Barry  Runyon et al → 39MC; 1985-05-08 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Tri-State Augering Inc → 39MC; 2007-06-22 to 2009-02-01; source msha-controller-operator-history
- **controller_controls_mine:** William A  Stephens et al → 39MC; 2007-06-22 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** William A  Stephens et al → Tri-State Augering Inc; 2007-06-22 to 2009-02-01; source msha-controller-operator-history
- **controller_controls_mine:** William A  Stephens et al → 39MC; 2008-12-02 to 2015-04-24; source msha-controller-operator-history
- **operator_operates_mine:** Augustus Augering & Contracting Inc. → 39MC; 2009-02-02 to 2012-04-15; source msha-controller-operator-history
- **controller_controls_operator:** William A  Stephens et al → Augustus Augering & Contracting Inc.; 2009-02-02 to 2012-04-15; source msha-controller-operator-history
- **controller_controls_mine:** Jonathan  Whitaker et al → 39MC; 2010-09-24 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Lloyd K  Damron → 39MC; 2011-12-06 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** K-JAC Energy, Inc. → 39MC; 2012-04-16 to 2012-11-06; source msha-controller-operator-history
- **controller_controls_operator:** Barry  Runyon et al → K-JAC Energy, Inc.; 2012-04-16 to 2012-11-06; source msha-controller-operator-history
- **controller_controls_operator:** Brian A  Runyon et al → K-JAC Energy, Inc.; 2012-04-16 to 2012-11-06; source msha-controller-operator-history
- **operator_operates_mine:** Augustus Augering and Contracting Inc → 39MC; 2012-11-07 to 2013-03-27; source msha-controller-operator-history
- **controller_controls_operator:** William A  Stephens et al → Augustus Augering and Contracting Inc; 2012-11-07 to 2013-03-27; source msha-controller-operator-history
- **operator_operates_mine:** MJK Mining Inc → 39MC; 2013-03-28 to 2013-11-04; source msha-controller-operator-history
- **controller_controls_operator:** Lloyd K  Damron → MJK Mining Inc; 2013-03-28 to 2013-11-04; source msha-controller-operator-history
- **operator_operates_mine:** Augustus Augering & Contracting Inc → 39MC; 2013-11-05 to 2018-11-12; source msha-controller-operator-history
- **controller_controls_operator:** William A  Stephens et al → Augustus Augering & Contracting Inc; 2013-11-05 to 2015-04-24; source msha-controller-operator-history
- **controller_controls_mine:** Melodye G  Stephens et al → 39MC; 2015-04-25 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Melodye G  Stephens et al → Augustus Augering & Contracting Inc.; 2015-04-25 to 2012-04-15; source msha-controller-operator-history
- **controller_controls_operator:** David A  Lester et al → Augustus Augering & Contracting Inc.; 2015-04-25 to 2012-04-15; source msha-controller-operator-history
- **controller_controls_operator:** Karen A  Stephens et al → Augustus Augering & Contracting Inc.; 2015-04-25 to 2012-04-15; source msha-controller-operator-history
- **controller_controls_operator:** David A  Lester et al → Augustus Augering and Contracting Inc; 2015-04-25 to 2013-03-27; source msha-controller-operator-history
- **controller_controls_operator:** Melodye G  Stephens et al → Augustus Augering and Contracting Inc; 2015-04-25 to 2013-03-27; source msha-controller-operator-history
- **controller_controls_operator:** Karen A  Stephens et al → Augustus Augering and Contracting Inc; 2015-04-25 to 2013-03-27; source msha-controller-operator-history
- **controller_controls_operator:** Karen A  Stephens et al → Augustus Augering & Contracting Inc; 2015-04-25 to 2018-11-12; source msha-controller-operator-history
- **controller_controls_operator:** Melodye G  Stephens et al → Augustus Augering & Contracting Inc; 2015-04-25 to 2018-11-12; source msha-controller-operator-history
- **controller_controls_operator:** David A  Lester et al → Augustus Augering & Contracting Inc; 2015-04-25 to 2018-11-12; source msha-controller-operator-history
- **operator_operates_mine:** DENALI ENERGY GROUP LLC → 39MC; 2018-11-13 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Jonathan  Whitaker et al → DENALI ENERGY GROUP LLC; 2018-11-13 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Conrad  Whitaker et al → DENALI ENERGY GROUP LLC; 2018-11-13 to current/open; source msha-controller-operator-history