# Relationship history for MSHA mine 1518884

Current hierarchy: **Blackhawk Mining LLC → Black Hawk Mining LLC → Tram Mine #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:** Vhonda  Dotson → Tram Mine #1; 2005-05-04 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Powell  Branch Energy, LLC → Tram Mine #1; 2005-06-02 to 2006-05-22; source msha-controller-operator-history
- **controller_controls_mine:** David W  Hall → Tram Mine #1; 2005-06-02 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** David W  Hall → Powell  Branch Energy, LLC; 2005-06-02 to 2006-05-22; source msha-controller-operator-history
- **controller_controls_mine:** Ramey Tim → Tram Mine #1; 2005-07-28 to 2006-07-24; source msha-controller-operator-history
- **operator_operates_mine:** Hi Energy Coal LLC → Tram Mine #1; 2006-05-23 to 2008-03-02; source msha-controller-operator-history
- **controller_controls_operator:** Ramey Tim → Hi Energy Coal LLC; 2006-05-23 to 2006-07-24; source msha-controller-operator-history
- **controller_controls_mine:** Jamie  Sawyers → Tram Mine #1; 2006-07-25 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Jamie  Sawyers → Hi Energy Coal LLC; 2006-07-25 to 2008-03-02; source msha-controller-operator-history
- **operator_operates_mine:** Jaguar Mining Inc → Tram Mine #1; 2008-03-03 to 2008-07-06; source msha-controller-operator-history
- **controller_controls_mine:** Pat R  Childers → Tram Mine #1; 2008-03-03 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Pat R  Childers → Jaguar Mining Inc; 2008-03-03 to 2008-07-06; source msha-controller-operator-history
- **operator_operates_mine:** Coal Diggers Inc → Tram Mine #1; 2008-07-07 to 2010-12-20; source msha-controller-operator-history
- **controller_controls_mine:** Freddie  Anderson  et al → Tram Mine #1; 2008-07-07 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Freddie  Anderson  et al → Coal Diggers Inc; 2008-07-07 to 2010-12-20; source msha-controller-operator-history
- **controller_controls_operator:** Carter  Slone  et al → Coal Diggers Inc; 2008-07-07 to 2010-12-20; source msha-controller-operator-history
- **controller_controls_mine:** John M  Potter et al → Tram Mine #1; 2010-07-16 to 2013-06-30; source msha-controller-operator-history
- **operator_operates_mine:** Blackhawk Mining LLC → Tram Mine #1; 2010-12-21 to 2011-04-19; source msha-controller-operator-history
- **controller_controls_operator:** John M  Potter et al → Blackhawk Mining LLC; 2010-12-21 to 2011-04-19; source msha-controller-operator-history
- **controller_controls_operator:** Thomas A  Potter et al → Blackhawk Mining LLC; 2010-12-21 to 2011-04-19; source msha-controller-operator-history
- **operator_operates_mine:** Carbide Coal LLC → Tram Mine #1; 2011-04-20 to 2011-11-06; source msha-controller-operator-history
- **controller_controls_mine:** Eddie  Lawson → Tram Mine #1; 2011-04-20 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Eddie  Lawson → Carbide Coal LLC; 2011-04-20 to 2011-11-06; source msha-controller-operator-history
- **operator_operates_mine:** LA Energy LLC → Tram Mine #1; 2011-11-07 to 2012-01-05; source msha-controller-operator-history
- **controller_controls_operator:** Vhonda  Dotson → LA Energy LLC; 2011-11-07 to 2012-01-05; source msha-controller-operator-history
- **operator_operates_mine:** Tram Energy LLC → Tram Mine #1; 2012-01-06 to 2014-03-13; source msha-controller-operator-history
- **controller_controls_mine:** Jason D  Ousley → Tram Mine #1; 2012-01-06 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Jason D  Ousley → Tram Energy LLC; 2012-01-06 to 2014-03-13; source msha-controller-operator-history
- **controller_controls_mine:** Blackhawk Mining LLC → Tram Mine #1; 2013-07-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Blackhawk Mining LLC → Blackhawk Mining LLC; 2013-07-01 to 2011-04-19; source msha-controller-operator-history
- **operator_operates_mine:** Black Hawk Mining LLC → Tram Mine #1; 2014-03-14 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Blackhawk Mining LLC → Black Hawk Mining LLC; 2014-03-14 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Thomas A  Potter et al → Black Hawk Mining LLC; 2014-03-14 to 2013-06-30; source msha-controller-operator-history
- **controller_controls_operator:** John M  Potter et al → Black Hawk Mining LLC; 2014-03-14 to 2013-06-30; source msha-controller-operator-history