# Relationship history for MSHA mine 4608345

Current hierarchy: **Long Branch Energy Corporation → Long Branch Energy → Mine No 21 (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: 2026-10-13T11:19:05.459773+00:00

## Valid-time edges

- **controller_controls_mine:** Brewster Thomas → Mine No 21 (1); 1980-08-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Long Branch Energy Corporation → Mine No 21 (1); 1989-03-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Elite Mining Services Inc → Mine No 21 (1); 1993-09-01 to 1995-01-11; source msha-controller-operator-history
- **controller_controls_mine:** Tommy Joe  Owens → Mine No 21 (1); 1993-09-01 to 1995-01-11; source msha-controller-operator-history
- **controller_controls_operator:** Tommy Joe  Owens → Elite Mining Services Inc; 1993-09-01 to 1995-01-11; source msha-controller-operator-history
- **operator_operates_mine:** Toney'S Branch Coal Company → Mine No 21 (1); 1995-01-12 to 1995-06-25; source msha-controller-operator-history
- **controller_controls_operator:** Brewster Thomas → Toney'S Branch Coal Company; 1995-01-12 to 1995-06-25; source msha-controller-operator-history
- **operator_operates_mine:** Long Branch Energy → Mine No 21 (1); 1995-06-26 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Long Branch Energy Corporation → Long Branch Energy; 1995-06-26 to current/open; source msha-controller-operator-history