# Relationship history for MSHA mine 1518095

Current hierarchy: **Rhino Resource Partners LP → CAM Mining LLC → R F #3 Elkhorn**

- Valid-time bounds: inclusive, date granularity
- Null end: open-ended in the upstream history row; not independent proof of present control
- Transaction-time observation: 2026-10-17T05:35:58.500035+00:00

## Valid-time edges

- **controller_controls_mine:** Donn A  Chickering → R F #3 Elkhorn; 1997-07-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Branham & Baker Underground Corp → R F #3 Elkhorn; 1998-08-01 to 2000-09-17; source msha-controller-operator-history
- **controller_controls_operator:** Donn A  Chickering → Branham & Baker Underground Corp; 1998-08-01 to 2000-09-17; source msha-controller-operator-history
- **controller_controls_mine:** Brent  Coleman et al → R F #3 Elkhorn; 1999-06-14 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Emily Enterprises Inc → R F #3 Elkhorn; 2000-09-18 to 2002-11-13; source msha-controller-operator-history
- **controller_controls_operator:** Brent  Coleman et al → Emily Enterprises Inc; 2000-09-18 to 2002-11-13; source msha-controller-operator-history
- **controller_controls_mine:** American Electric Power Company Inc → R F #3 Elkhorn; 2001-10-30 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** AEP Kentucky Coal, L. L. C. → R F #3 Elkhorn; 2002-11-14 to 2004-04-15; source msha-controller-operator-history
- **controller_controls_operator:** American Electric Power Company Inc → AEP Kentucky Coal, L. L. C.; 2002-11-14 to 2004-04-15; source msha-controller-operator-history
- **controller_controls_mine:** Wexford Capital LLC → R F #3 Elkhorn; 2003-05-12 to 2010-10-04; source msha-controller-operator-history
- **operator_operates_mine:** CAM - Kentucky, LLC → R F #3 Elkhorn; 2004-04-16 to 2005-12-31; source msha-controller-operator-history
- **controller_controls_mine:** Wexford Capital LLC → R F #3 Elkhorn; 2004-04-16 to 2010-10-04; source msha-controller-operator-history
- **controller_controls_operator:** Wexford Capital LLC → CAM - Kentucky, LLC; 2004-04-16 to 2005-12-31; source msha-controller-operator-history
- **operator_operates_mine:** CAM Mining LLC → R F #3 Elkhorn; 2006-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Wexford Capital LLC → CAM Mining LLC; 2006-01-01 to 2010-10-04; source msha-controller-operator-history
- **controller_controls_mine:** Rhino Resource Partners LP → R F #3 Elkhorn; 2010-10-05 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Rhino Resource Partners LP → CAM - Kentucky, LLC; 2010-10-05 to 2005-12-31; source msha-controller-operator-history
- **controller_controls_operator:** Rhino Resource Partners LP → CAM Mining LLC; 2010-10-05 to current/open; source msha-controller-operator-history