# Relationship history for MSHA mine 4603883

Current hierarchy: **Awv Finance Corp → Long Branch Energy → No 3**

- 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:** G B  Frederick → No 3; 1950-01-01 to 1985-11-26; source msha-controller-operator-history
- **operator_operates_mine:** F & F Mining Corp → No 3; 1973-01-01 to 1982-06-21; source msha-controller-operator-history
- **controller_controls_operator:** G B  Frederick → F & F Mining Corp; 1973-01-01 to 1982-06-21; source msha-controller-operator-history
- **controller_controls_mine:** Awv Finance Corp Et Al → No 3; 1980-01-30 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Long Branch Energy → No 3; 1982-06-22 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Awv Finance Corp Et Al → Long Branch Energy; 1982-06-22 to current/open; source msha-controller-operator-history