# Relationship history for MSHA mine 4607776

Current hierarchy: **CONSOL Energy Inc → Island Creek Coal Company → Brandy #2**

- 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:** Richard H  Abraham et al → Brandy #2; 1977-05-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Wynchester Mining Company Inc → Brandy #2; 1989-10-01 to 1994-11-02; source msha-controller-operator-history
- **controller_controls_operator:** Richard H  Abraham et al → Wynchester Mining Company Inc; 1989-10-01 to 1994-11-02; source msha-controller-operator-history
- **controller_controls_mine:** Barry  Cline → Brandy #2; 1992-11-19 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** CONSOL Energy Inc → Brandy #2; 1993-07-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Brandy Mining Inc Mine No 2 → Brandy #2; 1994-11-03 to 1996-04-30; source msha-controller-operator-history
- **controller_controls_operator:** Barry  Cline → Brandy Mining Inc Mine No 2; 1994-11-03 to 1996-04-30; source msha-controller-operator-history
- **operator_operates_mine:** Island Creek Coal Company → Brandy #2; 1996-05-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** CONSOL Energy Inc → Island Creek Coal Company; 1996-05-01 to current/open; source msha-controller-operator-history