# Relationship history for MSHA mine 4406689

Current hierarchy: **Steve  Findley → Fleetwood Energy Inc → Mine #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: 2026-10-13T11:19:05.459773+00:00

## Valid-time edges

- **controller_controls_mine:** Collins Gary M → Mine #1; 1991-05-06 to 1992-11-12; source msha-controller-operator-history
- **operator_operates_mine:** M C M Mining Inc → Mine #1; 1992-03-01 to 1992-11-12; source msha-controller-operator-history
- **controller_controls_operator:** Collins Gary M → M C M Mining Inc; 1992-03-01 to 1992-11-12; source msha-controller-operator-history
- **operator_operates_mine:** Fleetwood Energy Inc → Mine #1; 1992-11-13 to 1993-07-13; source msha-controller-operator-history
- **controller_controls_mine:** Steffey Ronnie G Et Al → Mine #1; 1992-11-13 to 1993-07-13; source msha-controller-operator-history
- **controller_controls_operator:** Steffey Ronnie G Et Al → Fleetwood Energy Inc; 1992-11-13 to 1993-07-13; source msha-controller-operator-history
- **operator_operates_mine:** Fleetwood Energy Inc → Mine #1; 1993-07-14 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Steve  Findley et al → Mine #1; 1993-07-14 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Steve  Findley et al → Fleetwood Energy Inc; 1993-07-14 to current/open; source msha-controller-operator-history