# Relationship history for MSHA mine 4609259

Current hierarchy: **Patriot Coal Corporation → Newtown Energy, Inc. → Carrow Fork Winnifrede Mine**

- 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:** Franklin D  Robertson  et al → Carrow Fork Winnifrede Mine; 2000-03-15 to 2008-03-31; source msha-controller-operator-history
- **operator_operates_mine:** Newtown Energy, Inc. → Carrow Fork Winnifrede Mine; 2008-04-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Robert E  Ellis → Carrow Fork Winnifrede Mine; 2008-04-01 to 2012-02-29; source msha-controller-operator-history
- **controller_controls_operator:** Robert E  Ellis → Newtown Energy, Inc.; 2008-04-01 to 2012-02-29; source msha-controller-operator-history
- **controller_controls_operator:** Franklin D  Robertson  et al → Newtown Energy, Inc.; 2008-04-01 to 2008-03-31; source msha-controller-operator-history
- **controller_controls_operator:** James O  Bunn  et al → Newtown Energy, Inc.; 2008-04-01 to 2008-03-31; source msha-controller-operator-history
- **controller_controls_mine:** Patriot Coal Corporation → Carrow Fork Winnifrede Mine; 2012-03-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Patriot Coal Corporation → Newtown Energy, Inc.; 2012-03-01 to current/open; source msha-controller-operator-history