# Relationship history for MSHA mine 1517074

Current hierarchy: **Ronald L  Gray → Three Bells, LLC → #1**

- 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 → #1; 1950-01-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Gatliff Coal Company Inc → #1; 1991-05-01 to 1998-04-28; source msha-controller-operator-history
- **controller_controls_operator:** TECO Energy Inc → Gatliff Coal Company Inc; 1991-05-01 to 1998-04-28; source msha-controller-operator-history
- **controller_controls_mine:** Jackie  Hembree → #1; 1997-02-17 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Headache Coal Company Inc → #1; 1998-04-29 to 2000-11-30; source msha-controller-operator-history
- **controller_controls_operator:** Jackie  Hembree → Headache Coal Company Inc; 1998-04-29 to 2000-11-30; source msha-controller-operator-history
- **operator_operates_mine:** Roses Creek Mining Inc → #1; 2000-12-01 to 2002-12-01; source msha-controller-operator-history
- **controller_controls_mine:** Darrell  Wagner → #1; 2000-12-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Darrell  Wagner → Roses Creek Mining Inc; 2000-12-01 to 2002-12-01; source msha-controller-operator-history
- **controller_controls_mine:** Paul  Caddell → #1; 2002-03-07 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** P C Contracting Inc. → #1; 2002-12-02 to 2003-02-18; source msha-controller-operator-history
- **controller_controls_operator:** Paul  Caddell → P C Contracting Inc.; 2002-12-02 to 2003-02-18; source msha-controller-operator-history
- **controller_controls_mine:** Earl  Wagner → #1; 2003-01-06 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** JEM Coal Incorporated → #1; 2003-02-19 to 2003-04-22; source msha-controller-operator-history
- **controller_controls_operator:** Earl  Wagner → JEM Coal Incorporated; 2003-02-19 to 2003-04-22; source msha-controller-operator-history
- **operator_operates_mine:** Wilcoal Mining Inc. → #1; 2003-04-23 to 2005-07-10; source msha-controller-operator-history
- **controller_controls_mine:** Wilma  Wagner → #1; 2003-04-23 to 2011-08-11; source msha-controller-operator-history
- **controller_controls_operator:** Wilma  Wagner → Wilcoal Mining Inc.; 2003-04-23 to 2005-07-10; source msha-controller-operator-history
- **operator_operates_mine:** Three Bells, LLC → #1; 2005-07-11 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Ronald L  Gray → #1; 2005-07-11 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Ronald L  Gray → Three Bells, LLC; 2005-07-11 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Darrell  Wagner → #1; 2011-08-12 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Darrell  Wagner → Wilcoal Mining Inc.; 2011-08-12 to 2005-07-10; source msha-controller-operator-history