# Relationship history for MSHA mine 3303349

Current hierarchy: **Rhino Resource Partners LP → Hopedale Mining LLC → Nelms Mine - Cadiz Portal**

- Valid-time bounds: inclusive, date granularity
- Null end: open-ended in the upstream history row; not independent proof of present control
- Transaction-time observation: 2026-10-18T09:31:49.615908+00:00

## Valid-time edges

- **controller_controls_mine:** Panhandle Eastern Corp → Nelms Mine - Cadiz Portal; 1950-01-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Youghiogheny & Ohio Coal Company → Nelms Mine - Cadiz Portal; 1975-08-11 to 1990-03-11; source msha-controller-operator-history
- **controller_controls_operator:** Panhandle Eastern Corp → Youghiogheny & Ohio Coal Company; 1975-08-11 to 1990-03-11; source msha-controller-operator-history
- **operator_operates_mine:** Harrison Mining Corp → Nelms Mine - Cadiz Portal; 1990-03-12 to 2001-10-29; source msha-controller-operator-history
- **controller_controls_mine:** Donn A  Chickering → Nelms Mine - Cadiz Portal; 1990-03-12 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Donn A  Chickering → Harrison Mining Corp; 1990-03-12 to 2001-10-29; source msha-controller-operator-history
- **operator_operates_mine:** AEP Ohio Coal, L.L.C. → Nelms Mine - Cadiz Portal; 2001-10-30 to 2004-04-15; source msha-controller-operator-history
- **controller_controls_mine:** American Electric Power Company Inc → Nelms Mine - Cadiz Portal; 2001-10-30 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** American Electric Power Company Inc → AEP Ohio Coal, L.L.C.; 2001-10-30 to 2004-04-15; source msha-controller-operator-history
- **operator_operates_mine:** Hopedale Mining LLC → Nelms Mine - Cadiz Portal; 2004-04-16 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Wexford Capital LLC → Nelms Mine - Cadiz Portal; 2004-04-16 to 2010-10-04; source msha-controller-operator-history
- **controller_controls_operator:** Wexford Capital LLC → Hopedale Mining LLC; 2004-04-16 to 2010-10-04; source msha-controller-operator-history
- **controller_controls_mine:** Rhino Resource Partners LP → Nelms Mine - Cadiz Portal; 2010-10-05 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Rhino Resource Partners LP → Hopedale Mining LLC; 2010-10-05 to current/open; source msha-controller-operator-history