# Relationship history for MSHA mine 4609374

Current hierarchy: **Mohegan Energy Trustees LLC → Onyx Energy, LLC → SHM #67**

- 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:** Douglas M  Epling et al → SHM #67; 2000-03-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Richard G  Preservati II → SHM #67; 2008-12-04 to 2018-05-15; source msha-controller-operator-history
- **operator_operates_mine:** Hanover Resources, LLC. → SHM #67; 2010-05-01 to 2013-04-22; source msha-controller-operator-history
- **controller_controls_operator:** Douglas M  Epling et al → Hanover Resources, LLC.; 2010-05-01 to 2013-04-22; source msha-controller-operator-history
- **controller_controls_mine:** James (Brad)  Maggard → SHM #67; 2012-08-15 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Thoroughbred Highwall Mining LLC → SHM #67; 2013-04-23 to 2017-08-06; source msha-controller-operator-history
- **controller_controls_operator:** James (Brad)  Maggard → Thoroughbred Highwall Mining LLC; 2013-04-23 to 2017-08-06; source msha-controller-operator-history
- **controller_controls_mine:** Freddie A Taylor et al → SHM #67; 2017-06-16 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** TB Coal Company, Inc. → SHM #67; 2017-08-07 to 2019-05-23; source msha-controller-operator-history
- **controller_controls_operator:** Freddie A Taylor et al → TB Coal Company, Inc.; 2017-08-07 to 2019-05-23; source msha-controller-operator-history
- **controller_controls_operator:** James  Black et al → TB Coal Company, Inc.; 2017-08-07 to 2019-05-23; source msha-controller-operator-history
- **controller_controls_mine:** Mohegan Energy Trustees LLC → SHM #67; 2018-05-16 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Straight Line Mining, LLC → SHM #67; 2019-05-24 to 2020-08-17; source msha-controller-operator-history
- **controller_controls_mine:** Richard  McCormick et al → SHM #67; 2019-05-24 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Richard  McCormick et al → Straight Line Mining, LLC; 2019-05-24 to 2020-08-17; source msha-controller-operator-history
- **controller_controls_operator:** Gregory  Jessee et al → Straight Line Mining, LLC; 2019-05-24 to 2020-08-17; source msha-controller-operator-history
- **operator_operates_mine:** Onyx Energy, LLC → SHM #67; 2020-08-18 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Mohegan Energy Trustees LLC → Onyx Energy, LLC; 2020-08-18 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Richard G  Preservati II → Onyx Energy, LLC; 2020-08-18 to 2018-05-15; source msha-controller-operator-history