# Relationship history for MSHA mine 3606866

Current hierarchy: **Spossey Alfred → Stanton Resources Inc → A & M Commodities - Mahle Strip**

- 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:** Hawley Lavern R → A & M Commodities - Mahle Strip; 1978-04-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Hawley & White Construction Company → A & M Commodities - Mahle Strip; 1979-08-01 to 1980-06-30; source msha-controller-operator-history
- **controller_controls_operator:** Hawley Lavern R → Hawley & White Construction Company; 1979-08-01 to 1980-06-30; source msha-controller-operator-history
- **operator_operates_mine:** Stanton Resources Inc → A & M Commodities - Mahle Strip; 1980-07-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Spossey Alfred → A & M Commodities - Mahle Strip; 1980-07-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Spossey Alfred → Stanton Resources Inc; 1980-07-01 to current/open; source msha-controller-operator-history