# Relationship history for MSHA mine 1519269

Current hierarchy: **Jerry Todd  Tackett → Lighthouse Mining, Inc. → Mine #2**

- 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:** Massey Energy Company → Mine #2; 1993-01-01 to 2011-05-31; source msha-controller-operator-history
- **operator_operates_mine:** Road Fork Development Company Inc → Mine #2; 2008-08-13 to 2012-07-19; source msha-controller-operator-history
- **controller_controls_operator:** Massey Energy Company → Road Fork Development Company Inc; 2008-08-13 to 2011-05-31; source msha-controller-operator-history
- **controller_controls_mine:** Alpha Natural Resources, Inc. → Mine #2; 2011-06-01 to 2016-07-25; source msha-controller-operator-history
- **controller_controls_operator:** Alpha Natural Resources, Inc. → Road Fork Development Company Inc; 2011-06-01 to 2012-07-19; source msha-controller-operator-history
- **controller_controls_mine:** Stanley W Osborne et al → Mine #2; 2012-04-16 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Stanmark Mining, Inc. → Mine #2; 2012-07-20 to 2012-11-27; source msha-controller-operator-history
- **controller_controls_operator:** Stanley W Osborne et al → Stanmark Mining, Inc.; 2012-07-20 to 2012-11-27; source msha-controller-operator-history
- **controller_controls_operator:** Mark E Daugherty et al → Stanmark Mining, Inc.; 2012-07-20 to 2012-11-27; source msha-controller-operator-history
- **operator_operates_mine:** Road Fork Development Company, Inc. → Mine #2; 2012-11-28 to 2023-03-08; source msha-controller-operator-history
- **controller_controls_operator:** Alpha Natural Resources, Inc. → Road Fork Development Company, Inc.; 2012-11-28 to 2016-07-25; source msha-controller-operator-history
- **controller_controls_operator:** Massey Energy Company → Road Fork Development Company, Inc.; 2012-11-28 to 2011-05-31; source msha-controller-operator-history
- **controller_controls_mine:** Alpha Natural Resources Holdings, Inc → Mine #2; 2016-07-26 to 2018-11-08; source msha-controller-operator-history
- **controller_controls_operator:** Alpha Natural Resources Holdings, Inc → Road Fork Development Company Inc; 2016-07-26 to 2012-07-19; source msha-controller-operator-history
- **controller_controls_operator:** Alpha Natural Resources Holdings, Inc → Road Fork Development Company, Inc.; 2016-07-26 to 2018-11-08; source msha-controller-operator-history
- **controller_controls_mine:** Alpha Metallurgical Resources Inc → Mine #2; 2018-11-09 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Alpha Metallurgical Resources Inc → Road Fork Development Company Inc; 2018-11-09 to 2012-07-19; source msha-controller-operator-history
- **controller_controls_operator:** Alpha Metallurgical Resources Inc → Road Fork Development Company, Inc.; 2018-11-09 to 2023-03-08; source msha-controller-operator-history
- **controller_controls_mine:** Janet R Bryant → Mine #2; 2019-08-22 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** HARDY MINING LLC → Mine #2; 2023-03-09 to 2023-04-20; source msha-controller-operator-history
- **controller_controls_mine:** Billy C Smith → Mine #2; 2023-03-09 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Billy C Smith → HARDY MINING LLC; 2023-03-09 to 2023-04-20; source msha-controller-operator-history
- **controller_controls_mine:** Jerry  Tackett → Mine #2; 2023-04-03 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Trump Energy, Corp → Mine #2; 2023-04-21 to 2023-12-10; source msha-controller-operator-history
- **controller_controls_operator:** Janet R Bryant → Trump Energy, Corp; 2023-04-21 to 2023-12-10; source msha-controller-operator-history
- **operator_operates_mine:** Tackett Mining, Inc. → Mine #2; 2023-12-11 to 2025-11-11; source msha-controller-operator-history
- **controller_controls_operator:** Jerry  Tackett → Tackett Mining, Inc.; 2023-12-11 to 2025-11-11; source msha-controller-operator-history
- **operator_operates_mine:** Lighthouse Mining, Inc. → Mine #2; 2025-11-12 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Jerry Todd  Tackett → Mine #2; 2025-11-12 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Jerry Todd  Tackett → Lighthouse Mining, Inc.; 2025-11-12 to current/open; source msha-controller-operator-history