# Relationship history for MSHA mine 1519063

Current hierarchy: **Alpha Natural Resources, Inc. → Panther Mining, LLC → Panther Mine #4a**

- 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:** Cumberland Resources Corporation → Panther Mine #4a; 1999-09-01 to 2010-04-18; source msha-controller-operator-history
- **operator_operates_mine:** Mill Branch Mining Inc → Panther Mine #4a; 2006-11-21 to 2008-02-17; source msha-controller-operator-history
- **controller_controls_mine:** Jack H Ealy et al → Panther Mine #4a; 2006-11-21 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Jack H Ealy et al → Mill Branch Mining Inc; 2006-11-21 to 2008-02-17; source msha-controller-operator-history
- **controller_controls_operator:** John D North et al -  JackrockLLC only8/27/99-5/3/04 → Mill Branch Mining Inc; 2006-11-21 to 2008-02-17; source msha-controller-operator-history
- **controller_controls_operator:** Ralph  Napier et al → Mill Branch Mining Inc; 2006-11-21 to 2008-02-17; source msha-controller-operator-history
- **operator_operates_mine:** Panther Mining, LLC → Panther Mine #4a; 2008-02-18 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Cumberland Resources Corporation → Panther Mining, LLC; 2008-02-18 to 2010-04-18; source msha-controller-operator-history
- **controller_controls_mine:** Massey Energy Company → Panther Mine #4a; 2010-04-19 to 2011-05-31; source msha-controller-operator-history
- **controller_controls_operator:** Massey Energy Company → Panther Mining, LLC; 2010-04-19 to 2011-05-31; source msha-controller-operator-history
- **controller_controls_mine:** Alpha Natural Resources, Inc. → Panther Mine #4a; 2011-06-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Alpha Natural Resources, Inc. → Panther Mining, LLC; 2011-06-01 to current/open; source msha-controller-operator-history