# Relationship history for MSHA mine 4606944

Current hierarchy: **Long Branch Energy Corporation → Bull Creek Coal → 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

- **operator_operates_mine:** Bull Creek Coal → No 1; 1985-06-01 to 1989-02-28; source msha-controller-operator-history
- **controller_controls_mine:** White Oak Corp-Madlex Corp Et Al → No 1; 1985-06-01 to 1989-02-28; source msha-controller-operator-history
- **controller_controls_operator:** White Oak Corp-Madlex Corp Et Al → Bull Creek Coal; 1985-06-01 to 1989-02-28; source msha-controller-operator-history
- **operator_operates_mine:** Bull Creek Coal → No 1; 1989-03-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Long Branch Energy Corporation → No 1; 1989-03-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Long Branch Energy Corporation → Bull Creek Coal; 1989-03-01 to current/open; source msha-controller-operator-history