# Relationship history for MSHA mine 4104049

Current hierarchy: **STAR FUELS LTD → Star Fire Port Services Inc → Star Fire Port Services**

- 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:** Star Fire Port Services Inc → Star Fire Port Services; 1999-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Chevron Corporation → Star Fire Port Services; 1999-01-01 to 2002-01-28; source msha-controller-operator-history
- **controller_controls_operator:** Chevron Corporation → Star Fire Port Services Inc; 1999-01-01 to 2002-01-28; source msha-controller-operator-history
- **controller_controls_mine:** STAR FUELS LTD → Star Fire Port Services; 2002-01-29 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** STAR FUELS LTD → Star Fire Port Services Inc; 2002-01-29 to current/open; source msha-controller-operator-history