# Relationship history for MSHA mine 2601757

Current hierarchy: **James E  Tinnell → Jetco Enterprises Inc. → Jetco Mill**

- 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:** Jetco Enterprises Inc → Jetco Mill; 1981-07-01 to 2006-03-06; source msha-controller-operator-history
- **controller_controls_mine:** James E  Tinnell → Jetco Mill; 1981-07-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** James E  Tinnell → Jetco Enterprises Inc; 1981-07-01 to 2006-03-06; source msha-controller-operator-history
- **operator_operates_mine:** Spanish Gold Incorporated → Jetco Mill; 2006-03-07 to 2007-01-02; source msha-controller-operator-history
- **controller_controls_mine:** Jerry  Appelhans → Jetco Mill; 2006-03-07 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Jerry  Appelhans → Spanish Gold Incorporated; 2006-03-07 to 2007-01-02; source msha-controller-operator-history
- **operator_operates_mine:** Jetco Enterprises Inc. → Jetco Mill; 2007-01-03 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** James E  Tinnell → Jetco Enterprises Inc.; 2007-01-03 to current/open; source msha-controller-operator-history