# Relationship history for MSHA mine 4407017

Current hierarchy: **David L  Cordill → Black Belt Mining Inc → No 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:** TECO Energy Inc → No 2; 1988-04-26 to 2015-09-20; source msha-controller-operator-history
- **controller_controls_mine:** Terry E  Matney → No 2; 2000-08-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** David  Stevenson → No 2; 2000-12-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Matney Construction Company Inc → No 2; 2001-01-01 to 2001-09-23; source msha-controller-operator-history
- **controller_controls_operator:** Terry E  Matney → Matney Construction Company Inc; 2001-01-01 to 2001-09-23; source msha-controller-operator-history
- **operator_operates_mine:** Sassy Coal Company Inc → No 2; 2001-09-24 to 2005-04-24; source msha-controller-operator-history
- **controller_controls_mine:** Charles T  Norman → No 2; 2001-09-24 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Charles T  Norman → Sassy Coal Company Inc; 2001-09-24 to 2005-04-24; source msha-controller-operator-history
- **operator_operates_mine:** Dacoal Mining, Inc. → No 2; 2005-04-25 to 2006-09-12; source msha-controller-operator-history
- **controller_controls_operator:** David  Stevenson → Dacoal Mining, Inc.; 2005-04-25 to 2006-09-12; source msha-controller-operator-history
- **controller_controls_mine:** Bradley V  Hurley → No 2; 2005-08-09 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** North Star Mining Inc → No 2; 2006-09-13 to 2007-05-21; source msha-controller-operator-history
- **controller_controls_operator:** Bradley V  Hurley → North Star Mining Inc; 2006-09-13 to 2007-05-21; source msha-controller-operator-history
- **controller_controls_mine:** David L  Cordill → No 2; 2006-10-16 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Clintwood Elkhorn Mining, Inc. → No 2; 2007-05-22 to 2007-11-19; source msha-controller-operator-history
- **controller_controls_operator:** TECO Energy Inc → Clintwood Elkhorn Mining, Inc.; 2007-05-22 to 2007-11-19; source msha-controller-operator-history
- **operator_operates_mine:** Black Belt Mining Inc → No 2; 2007-11-20 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** David L  Cordill → Black Belt Mining Inc; 2007-11-20 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** James H  Booth et al → No 2; 2015-09-21 to 2019-06-15; source msha-controller-operator-history
- **controller_controls_operator:** James H  Booth et al → Clintwood Elkhorn Mining, Inc.; 2015-09-21 to 2007-11-19; source msha-controller-operator-history
- **controller_controls_mine:** J Mark  Campbell → No 2; 2019-06-16 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** J Mark  Campbell → Clintwood Elkhorn Mining, Inc.; 2019-06-16 to 2007-11-19; source msha-controller-operator-history