# Relationship history for MSHA mine 1519181

Current hierarchy: **Jeffery A  Hoops → Revelation Energy, LLC → H-4**

- 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:** Robert  Williams et al → H-4; 1991-08-01 to 2010-07-25; source msha-controller-operator-history
- **operator_operates_mine:** Aspen Highwall Mining LP → H-4; 2008-02-04 to 2009-08-24; source msha-controller-operator-history
- **controller_controls_mine:** R Bruce  Ferguson et al → H-4; 2008-02-04 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** R Bruce  Ferguson et al → Aspen Highwall Mining LP; 2008-02-04 to 2009-08-24; source msha-controller-operator-history
- **controller_controls_operator:** James S  Ferguson et al → Aspen Highwall Mining LP; 2008-02-04 to 2009-08-24; source msha-controller-operator-history
- **controller_controls_mine:** Jeffery A  Hoops → H-4; 2009-05-08 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Bundy Auger Mining Inc → H-4; 2009-08-25 to 2012-05-01; source msha-controller-operator-history
- **controller_controls_operator:** Robert  Williams et al → Bundy Auger Mining Inc; 2009-08-25 to 2010-07-25; source msha-controller-operator-history
- **controller_controls_operator:** David D  Bundy et al → Bundy Auger Mining Inc; 2009-08-25 to 2010-07-25; source msha-controller-operator-history
- **controller_controls_mine:** David D  Bundy et al → H-4; 2010-07-26 to 2012-12-31; source msha-controller-operator-history
- **controller_controls_operator:** David D  Bundy et al → Bundy Auger Mining Inc; 2010-07-26 to 2012-05-01; source msha-controller-operator-history
- **controller_controls_operator:** Perian  Salviola et al → Bundy Auger Mining Inc; 2010-07-26 to 2012-05-01; source msha-controller-operator-history
- **controller_controls_mine:** David D  Bundy et al → H-4; 2011-01-12 to 2012-06-05; source msha-controller-operator-history
- **operator_operates_mine:** Alpha Highwall Mining, LLC → H-4; 2012-05-02 to 2013-06-03; source msha-controller-operator-history
- **controller_controls_operator:** David D  Bundy et al → Alpha Highwall Mining, LLC; 2012-05-02 to 2012-06-05; source msha-controller-operator-history
- **controller_controls_operator:** Jeff  Hoops et al → Alpha Highwall Mining, LLC; 2012-05-02 to 2012-06-05; source msha-controller-operator-history
- **controller_controls_mine:** Jeffery A  Hoops → H-4; 2012-06-06 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Jeffery A  Hoops → Alpha Highwall Mining, LLC; 2012-06-06 to 2013-06-03; source msha-controller-operator-history
- **controller_controls_mine:** OHA Investment Corporation et al → H-4; 2013-01-01 to 2016-06-27; source msha-controller-operator-history
- **controller_controls_operator:** OHA Investment Corporation et al → Bundy Auger Mining Inc; 2013-01-01 to 2012-05-01; source msha-controller-operator-history
- **controller_controls_operator:** David D  Bundy et al → Bundy Auger Mining Inc; 2013-01-01 to 2012-05-01; source msha-controller-operator-history
- **operator_operates_mine:** Revelation Energy, LLC → H-4; 2013-06-04 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Jeffery A  Hoops → Revelation Energy, LLC; 2013-06-04 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** David D  Bundy → H-4; 2016-06-28 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** David D  Bundy → Bundy Auger Mining Inc; 2016-06-28 to 2012-05-01; source msha-controller-operator-history