# Relationship history for MSHA mine 1518168

Current hierarchy: **Milford T  Compton → Star Services Corp → 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: 2026-10-13T11:19:05.459773+00:00

## Valid-time edges

- **operator_operates_mine:** Grace Mining Inc → No 1; 1999-05-01 to 2001-02-07; source msha-controller-operator-history
- **controller_controls_mine:** Joey  Taylor → No 1; 1999-05-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Joey  Taylor → Grace Mining Inc; 1999-05-01 to 2001-02-07; source msha-controller-operator-history
- **operator_operates_mine:** Star Services Corp → No 1; 2001-02-08 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Milford T  Compton → No 1; 2001-02-08 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Milford T  Compton → Star Services Corp; 2001-02-08 to current/open; source msha-controller-operator-history