# Relationship history for MSHA mine 4607375

Current hierarchy: **MELISSA  CLINE → Top Notch Enterprises → No. 37 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: 2026-10-17T05:35:58.500035+00:00

## Valid-time edges

- **controller_controls_mine:** Simpson & Lester Coals Inc → No. 37 Mine; 1986-10-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Simpson & Lester Coals Inc → No. 37 Mine; 1987-10-01 to 1994-05-30; source msha-controller-operator-history
- **controller_controls_operator:** Simpson & Lester Coals Inc → Simpson & Lester Coals Inc; 1987-10-01 to 1994-05-30; source msha-controller-operator-history
- **operator_operates_mine:** Rwj Mining Inc → No. 37 Mine; 1994-05-31 to 1999-01-03; source msha-controller-operator-history
- **controller_controls_mine:** Randall  Jenkins → No. 37 Mine; 1994-05-31 to 1999-01-03; source msha-controller-operator-history
- **controller_controls_operator:** Randall  Jenkins → Rwj Mining Inc; 1994-05-31 to 1999-01-03; source msha-controller-operator-history
- **controller_controls_mine:** Brian  Cline → No. 37 Mine; 1997-07-31 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** R W J Mining Inc → No. 37 Mine; 1999-01-04 to 2001-08-31; source msha-controller-operator-history
- **controller_controls_mine:** Cortis W  Bailey → No. 37 Mine; 1999-01-04 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Cortis W  Bailey → R W J Mining Inc; 1999-01-04 to 2001-08-31; source msha-controller-operator-history
- **operator_operates_mine:** ALBATROSS MINING CORP → No. 37 Mine; 2001-09-01 to 2001-11-27; source msha-controller-operator-history
- **controller_controls_operator:** Brian  Cline → ALBATROSS MINING CORP; 2001-09-01 to 2001-11-27; source msha-controller-operator-history
- **operator_operates_mine:** Top Notch Enterprises → No. 37 Mine; 2001-11-28 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** MELISSA  CLINE → No. 37 Mine; 2001-11-28 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** MELISSA  CLINE → Top Notch Enterprises; 2001-11-28 to current/open; source msha-controller-operator-history