# Relationship history for MSHA mine 4607072

Current hierarchy: **Bright William T → Land Use Corp → Little Anne #3**

- 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

- **controller_controls_mine:** Bright William T → Little Anne #3; 1976-05-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Minnix Dann Et Al → Little Anne #3; 1985-01-09 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Shana Coal Inc → Little Anne #3; 1986-02-01 to 1989-11-12; source msha-controller-operator-history
- **controller_controls_operator:** Minnix Dann Et Al → Shana Coal Inc; 1986-02-01 to 1989-11-12; source msha-controller-operator-history
- **operator_operates_mine:** Land Use Corp → Little Anne #3; 1989-11-13 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Bright William T → Land Use Corp; 1989-11-13 to current/open; source msha-controller-operator-history