# Relationship history for MSHA mine 3606831

Current hierarchy: **Godin James E → Godin Coal Production Leasing → Prep Plant No 1**

- 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

- **operator_operates_mine:** Low-Vol Fuels Inc → Prep Plant No 1; 1979-04-01 to 1980-10-27; source msha-controller-operator-history
- **controller_controls_mine:** Francis Douglas → Prep Plant No 1; 1979-04-01 to 1980-10-27; source msha-controller-operator-history
- **controller_controls_operator:** Francis Douglas → Low-Vol Fuels Inc; 1979-04-01 to 1980-10-27; source msha-controller-operator-history
- **operator_operates_mine:** Ramsay Coal Company Inc → Prep Plant No 1; 1980-10-28 to 1983-12-18; source msha-controller-operator-history
- **controller_controls_mine:** Watkins Donald C → Prep Plant No 1; 1980-10-28 to 1983-12-18; source msha-controller-operator-history
- **controller_controls_operator:** Watkins Donald C → Ramsay Coal Company Inc; 1980-10-28 to 1983-12-18; source msha-controller-operator-history
- **operator_operates_mine:** Godin & Goden Leasing Corp → Prep Plant No 1; 1983-12-19 to 1989-09-30; source msha-controller-operator-history
- **controller_controls_mine:** Godin James S → Prep Plant No 1; 1983-12-19 to 1989-09-30; source msha-controller-operator-history
- **controller_controls_operator:** Godin James S → Godin & Goden Leasing Corp; 1983-12-19 to 1989-09-30; source msha-controller-operator-history
- **operator_operates_mine:** Godin Coal Production Leasing → Prep Plant No 1; 1989-10-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Godin James E → Prep Plant No 1; 1989-10-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Godin James E → Godin Coal Production Leasing; 1989-10-01 to current/open; source msha-controller-operator-history