# Relationship history for MSHA mine 1518524

Current hierarchy: **Paul R  Belcher II → Belcher & Company Excavating Inc. → Turkey Pen Refuse**

- 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 → Turkey Pen Refuse; 1988-04-26 to 2015-09-20; source msha-controller-operator-history
- **operator_operates_mine:** Clintwood Elkhorn Mining → Turkey Pen Refuse; 2002-02-21 to 2008-09-30; source msha-controller-operator-history
- **controller_controls_operator:** TECO Energy Inc → Clintwood Elkhorn Mining; 2002-02-21 to 2008-09-30; source msha-controller-operator-history
- **operator_operates_mine:** Belcher and Company Excavating Inc. → Turkey Pen Refuse; 2008-10-01 to 2009-05-13; source msha-controller-operator-history
- **controller_controls_mine:** Paul R  Belcher II → Turkey Pen Refuse; 2008-10-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Paul R  Belcher II → Belcher and Company Excavating Inc.; 2008-10-01 to 2009-05-13; source msha-controller-operator-history
- **operator_operates_mine:** Clintwood Elkhorn Mining → Turkey Pen Refuse; 2009-05-14 to 2013-06-27; source msha-controller-operator-history
- **controller_controls_operator:** TECO Energy Inc → Clintwood Elkhorn Mining; 2009-05-14 to 2013-06-27; source msha-controller-operator-history
- **operator_operates_mine:** Belcher & Company Excavating Inc. → Turkey Pen Refuse; 2013-06-28 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Paul R  Belcher II → Belcher & Company Excavating Inc.; 2013-06-28 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** James H  Booth et al → Turkey Pen Refuse; 2015-09-21 to 2019-06-15; source msha-controller-operator-history
- **controller_controls_operator:** James H  Booth et al → Clintwood Elkhorn Mining; 2015-09-21 to 2008-09-30; source msha-controller-operator-history
- **controller_controls_operator:** James H  Booth et al → Clintwood Elkhorn Mining; 2015-09-21 to 2013-06-27; source msha-controller-operator-history
- **controller_controls_mine:** J Mark  Campbell → Turkey Pen Refuse; 2019-06-16 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** J Mark  Campbell → Clintwood Elkhorn Mining; 2019-06-16 to 2008-09-30; source msha-controller-operator-history
- **controller_controls_operator:** J Mark  Campbell → Clintwood Elkhorn Mining; 2019-06-16 to 2013-06-27; source msha-controller-operator-history