# Relationship history for MSHA mine 4607204

Current hierarchy: **Lexington Coal Company LLC → LCC West Virginia LLC → Flatbush**

- 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

- **operator_operates_mine:** Flatbush Coal Company → Flatbush; 1986-09-01 to 1988-02-18; source msha-controller-operator-history
- **controller_controls_mine:** Chw Industries Inc → Flatbush; 1986-09-01 to 1988-02-18; source msha-controller-operator-history
- **controller_controls_operator:** Chw Industries Inc → Flatbush Coal Company; 1986-09-01 to 1988-02-18; source msha-controller-operator-history
- **controller_controls_mine:** Cyprus Amax Minerals Company → Flatbush; 1988-02-17 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Bentley Coal Company → Flatbush; 1988-02-19 to 1992-11-14; source msha-controller-operator-history
- **controller_controls_operator:** Cyprus Amax Minerals Company → Bentley Coal Company; 1988-02-19 to 1992-11-14; source msha-controller-operator-history
- **controller_controls_mine:** William E  Nesselrotte → Flatbush; 1989-02-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Nesco Inc → Flatbush; 1992-11-15 to 2004-09-30; source msha-controller-operator-history
- **controller_controls_operator:** William E  Nesselrotte → Nesco Inc; 1992-11-15 to 2004-09-30; source msha-controller-operator-history
- **operator_operates_mine:** LCC West Virginia LLC → Flatbush; 2004-10-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Lexington Coal Company LLC → Flatbush; 2004-10-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Lexington Coal Company LLC → LCC West Virginia LLC; 2004-10-01 to current/open; source msha-controller-operator-history