# Relationship history for MSHA mine 1519776

Current hierarchy: **Janet R Bryant → Trump Energy, Corp. → No.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:** TECO Energy Inc → No.4; 1991-12-02 to 2015-09-20; source msha-controller-operator-history
- **controller_controls_mine:** James H  Booth et al → No.4; 2000-08-11 to 2019-06-15; source msha-controller-operator-history
- **operator_operates_mine:** Apex Energy, Inc. → No.4; 2015-03-17 to 2018-05-17; source msha-controller-operator-history
- **controller_controls_operator:** James H  Booth et al → Apex Energy, Inc.; 2015-03-17 to 2018-05-17; source msha-controller-operator-history
- **controller_controls_mine:** James H  Booth et al → No.4; 2015-09-21 to 2019-06-15; source msha-controller-operator-history
- **operator_operates_mine:** Premier Elkhorn Coal Company, LLC → No.4; 2018-05-18 to 2019-10-09; source msha-controller-operator-history
- **controller_controls_operator:** TECO Energy Inc → Premier Elkhorn Coal Company, LLC; 2018-05-18 to 2015-09-20; source msha-controller-operator-history
- **controller_controls_operator:** James H  Booth et al → Premier Elkhorn Coal Company, LLC; 2018-05-18 to 2019-06-15; source msha-controller-operator-history
- **controller_controls_mine:** J Mark  Campbell → No.4; 2019-06-16 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** J Mark  Campbell → Apex Energy, Inc.; 2019-06-16 to 2018-05-17; source msha-controller-operator-history
- **controller_controls_operator:** J Mark  Campbell → Premier Elkhorn Coal Company, LLC; 2019-06-16 to 2019-10-09; source msha-controller-operator-history
- **controller_controls_mine:** Janet R Bryant → No.4; 2019-08-22 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Virgie Clean Mining, LLC → No.4; 2019-10-10 to 2021-04-14; source msha-controller-operator-history
- **controller_controls_mine:** William K  Abraham → No.4; 2019-10-10 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** William K  Abraham → Virgie Clean Mining, LLC; 2019-10-10 to 2021-04-14; source msha-controller-operator-history
- **operator_operates_mine:** Trump Energy, Corp. → No.4; 2021-04-15 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Janet R Bryant → Trump Energy, Corp.; 2021-04-15 to current/open; source msha-controller-operator-history