# Relationship history for MSHA mine 5001256

Current hierarchy: **Green Jack & Harold Nevers → Blue Water Mining → American Creek 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

- **operator_operates_mine:** Charles E Stout → American Creek Mine; 1950-01-01 to 1980-05-31; source msha-controller-operator-history
- **controller_controls_mine:** Stout Charles E & Wyman Fritsch → American Creek Mine; 1950-01-01 to 1980-05-31; source msha-controller-operator-history
- **controller_controls_operator:** Stout Charles E & Wyman Fritsch → Charles E Stout; 1950-01-01 to 1980-05-31; source msha-controller-operator-history
- **operator_operates_mine:** Blue Water Mining → American Creek Mine; 1980-06-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Green Jack & Harold Nevers → American Creek Mine; 1980-06-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Green Jack & Harold Nevers → Blue Water Mining; 1980-06-01 to current/open; source msha-controller-operator-history