# Relationship history for MSHA mine 4606994

Current hierarchy: **Joby  Fields → Guyana Resources Inc → No 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:** Lilly Orville Eugene → No 2; 1985-04-05 to 1986-05-13; source msha-controller-operator-history
- **operator_operates_mine:** Samara Coal Corp → No 2; 1985-09-01 to 1985-12-19; source msha-controller-operator-history
- **controller_controls_operator:** Lilly Orville Eugene → Samara Coal Corp; 1985-09-01 to 1985-12-19; source msha-controller-operator-history
- **operator_operates_mine:** Robinette & Cohenour Mining Inc → No 2; 1985-12-20 to 1986-01-01; source msha-controller-operator-history
- **controller_controls_mine:** Robinette Shelvin → No 2; 1985-12-20 to 1986-05-04; source msha-controller-operator-history
- **controller_controls_operator:** Robinette Shelvin → Robinette & Cohenour Mining Inc; 1985-12-20 to 1986-01-01; source msha-controller-operator-history
- **operator_operates_mine:** Samara Coal Corp → No 2; 1986-01-02 to 1986-02-04; source msha-controller-operator-history
- **controller_controls_operator:** Lilly Orville Eugene → Samara Coal Corp; 1986-01-02 to 1986-02-04; source msha-controller-operator-history
- **operator_operates_mine:** Bethany Coal Company Inc → No 2; 1986-02-05 to 1986-10-15; source msha-controller-operator-history
- **controller_controls_mine:** Murphy Wilson → No 2; 1986-02-05 to 1986-10-15; source msha-controller-operator-history
- **controller_controls_operator:** Murphy Wilson → Bethany Coal Company Inc; 1986-02-05 to 1986-10-15; source msha-controller-operator-history
- **controller_controls_mine:** Joby  Fields → No 2; 1986-08-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Bethany Coal Company Inc → No 2; 1986-10-16 to 1987-03-15; source msha-controller-operator-history
- **controller_controls_mine:** Mullins Judge → No 2; 1986-10-16 to 1987-03-15; source msha-controller-operator-history
- **controller_controls_operator:** Mullins Judge → Bethany Coal Company Inc; 1986-10-16 to 1987-03-15; source msha-controller-operator-history
- **operator_operates_mine:** Guyana Resources Inc → No 2; 1987-03-16 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Joby  Fields → Guyana Resources Inc; 1987-03-16 to current/open; source msha-controller-operator-history