# Relationship history for MSHA mine 1517650

Current hierarchy: **Jeffery A  Hoops → Revelation Energy, LLC → T-11 Coldiron**

- 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:** Billy Ray  Carroll → T-11 Coldiron; 1983-11-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Aubra P  Dean et al → T-11 Coldiron; 1984-07-01 to 2008-04-17; source msha-controller-operator-history
- **controller_controls_mine:** Nicholas  Saylor et al → T-11 Coldiron; 1994-06-03 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** B R C Coal Company Inc → T-11 Coldiron; 1995-03-01 to 1997-10-31; source msha-controller-operator-history
- **controller_controls_operator:** Billy Ray  Carroll → B R C Coal Company Inc; 1995-03-01 to 1997-10-31; source msha-controller-operator-history
- **operator_operates_mine:** Saylor Brothers Enterprises Inc → T-11 Coldiron; 1997-11-01 to 1999-08-29; source msha-controller-operator-history
- **controller_controls_operator:** Nicholas  Saylor et al → Saylor Brothers Enterprises Inc; 1997-11-01 to 1999-08-29; source msha-controller-operator-history
- **operator_operates_mine:** New Coal Company Inc → T-11 Coldiron; 1999-08-30 to 2008-04-17; source msha-controller-operator-history
- **controller_controls_mine:** Aubra P  Dean et al → T-11 Coldiron; 1999-08-30 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Aubra P  Dean et al → New Coal Company Inc; 1999-08-30 to 2008-04-17; source msha-controller-operator-history
- **controller_controls_operator:** Carl E  McAfee et al → New Coal Company Inc; 1999-08-30 to 2008-04-17; source msha-controller-operator-history
- **operator_operates_mine:** Fox Knob Coal Company  Inc → T-11 Coldiron; 2008-04-18 to 2015-04-23; source msha-controller-operator-history
- **controller_controls_mine:** U S Coal Corporation → T-11 Coldiron; 2008-04-18 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** U S Coal Corporation → Fox Knob Coal Company  Inc; 2008-04-18 to 2015-04-23; source msha-controller-operator-history
- **controller_controls_operator:** Aubra P  Dean et al → Fox Knob Coal Company  Inc; 2008-04-18 to 2008-04-17; source msha-controller-operator-history
- **controller_controls_operator:** Carl E  McAfee et al → Fox Knob Coal Company  Inc; 2008-04-18 to 2008-04-17; source msha-controller-operator-history
- **controller_controls_mine:** Jeffery A  Hoops → T-11 Coldiron; 2009-05-08 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Revelation Energy, LLC → T-11 Coldiron; 2015-04-24 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Jeffery A  Hoops → Revelation Energy, LLC; 2015-04-24 to current/open; source msha-controller-operator-history