# Relationship history for MSHA mine 4608776

Current hierarchy: **MELISSA  CLINE → Top Notch Enterprises, Inc. → No. 50 Mine**

- 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:** James C  Justice II et al → No. 50 Mine; 1995-04-10 to 2000-12-11; source msha-controller-operator-history
- **operator_operates_mine:** Four Corners Corp → No. 50 Mine; 1999-05-01 to 2000-12-11; source msha-controller-operator-history
- **controller_controls_operator:** James C  Justice II et al → Four Corners Corp; 1999-05-01 to 2000-12-11; source msha-controller-operator-history
- **operator_operates_mine:** Four Corners Corp → No. 50 Mine; 2000-12-12 to 2001-08-29; source msha-controller-operator-history
- **controller_controls_mine:** Jeff  Collis → No. 50 Mine; 2000-12-12 to 2001-08-29; source msha-controller-operator-history
- **controller_controls_operator:** Jeff  Collis → Four Corners Corp; 2000-12-12 to 2001-08-29; source msha-controller-operator-history
- **operator_operates_mine:** Energy Plus Inc → No. 50 Mine; 2001-08-30 to 2003-07-06; source msha-controller-operator-history
- **controller_controls_mine:** Thomas W  Lusk → No. 50 Mine; 2001-08-30 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Thomas W  Lusk → Energy Plus Inc; 2001-08-30 to 2003-07-06; source msha-controller-operator-history
- **controller_controls_mine:** MELISSA  CLINE → No. 50 Mine; 2001-11-28 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Top Notch Enterprises, Inc. → No. 50 Mine; 2003-07-07 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** MELISSA  CLINE → Top Notch Enterprises, Inc.; 2003-07-07 to current/open; source msha-controller-operator-history