# Relationship history for MSHA mine 1508677

Current hierarchy: **Ratliff Blake → R V & W Mining Inc → No 2 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:** Sammons Grover → No 2 Mine; 1950-01-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Molly'S Branch Coal Company → No 2 Mine; 1975-01-01 to 1975-11-02; source msha-controller-operator-history
- **controller_controls_mine:** Anthony  Newsome → No 2 Mine; 1975-01-01 to 1975-11-02; source msha-controller-operator-history
- **controller_controls_operator:** Anthony  Newsome → Molly'S Branch Coal Company; 1975-01-01 to 1975-11-02; source msha-controller-operator-history
- **operator_operates_mine:** Mitch Coal Company Inc → No 2 Mine; 1975-11-03 to 1980-11-30; source msha-controller-operator-history
- **controller_controls_operator:** Sammons Grover → Mitch Coal Company Inc; 1975-11-03 to 1980-11-30; source msha-controller-operator-history
- **controller_controls_mine:** Ratliff Blake → No 2 Mine; 1980-06-23 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Everhard Paul → No 2 Mine; 1980-10-01 to 1984-09-25; source msha-controller-operator-history
- **operator_operates_mine:** John Paul Fuels Inc → No 2 Mine; 1980-12-01 to 1981-04-29; source msha-controller-operator-history
- **controller_controls_operator:** Everhard Paul → John Paul Fuels Inc; 1980-12-01 to 1981-04-29; source msha-controller-operator-history
- **operator_operates_mine:** R V & W Mining Inc → No 2 Mine; 1981-04-30 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Ratliff Blake → R V & W Mining Inc; 1981-04-30 to current/open; source msha-controller-operator-history