# Relationship history for MSHA mine 4608523

Current hierarchy: **Patriot Coal Corporation → Hobet Mining LLC → Camp Creek Mine No. 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: 2026-10-17T05:35:58.500035+00:00

## Valid-time edges

- **controller_controls_mine:** Ashland Inc et al → Camp Creek Mine No. 1; 1977-05-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Roger  Bell → Camp Creek Mine No. 1; 1994-08-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Bar-K Inc → Camp Creek Mine No. 1; 1995-09-01 to 2002-04-04; source msha-controller-operator-history
- **controller_controls_operator:** Roger  Bell → Bar-K Inc; 1995-09-01 to 2002-04-04; source msha-controller-operator-history
- **operator_operates_mine:** Hobet Mining, Inc. → Camp Creek Mine No. 1; 2002-04-05 to 2002-04-15; source msha-controller-operator-history
- **controller_controls_operator:** Ashland Inc et al → Hobet Mining, Inc.; 2002-04-05 to 2002-04-15; source msha-controller-operator-history
- **operator_operates_mine:** Mason Mining, LLC → Camp Creek Mine No. 1; 2002-04-16 to 2006-05-16; source msha-controller-operator-history
- **controller_controls_mine:** Ronnie G  Cornett et al → Camp Creek Mine No. 1; 2002-04-16 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Ronnie G  Cornett et al → Mason Mining, LLC; 2002-04-16 to 2006-05-16; source msha-controller-operator-history
- **controller_controls_mine:** Magnum Coal Company → Camp Creek Mine No. 1; 2006-01-01 to 2008-07-22; source msha-controller-operator-history
- **operator_operates_mine:** Hobet Mining LLC → Camp Creek Mine No. 1; 2006-05-17 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Magnum Coal Company → Hobet Mining LLC; 2006-05-17 to 2008-07-22; source msha-controller-operator-history
- **controller_controls_mine:** Patriot Coal Corporation → Camp Creek Mine No. 1; 2008-07-23 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Patriot Coal Corporation → Hobet Mining LLC; 2008-07-23 to current/open; source msha-controller-operator-history