# Relationship history for MSHA mine 1202319

Current hierarchy: **Carbontronics Synfuels Investors Lp → Vigo County Synfuel LLC. → Vigo**

- 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

- **controller_controls_mine:** Carbontronics Synfuels Investors Lp → Vigo; 2001-10-12 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** PC Illinois Synthetic Fuel #2, LLC → Vigo; 2001-12-12 to 2004-11-16; source msha-controller-operator-history
- **controller_controls_operator:** Carbontronics Synfuels Investors Lp → PC Illinois Synthetic Fuel #2, LLC; 2001-12-12 to 2004-11-16; source msha-controller-operator-history
- **operator_operates_mine:** Vigo County Synfuel LLC. → Vigo; 2004-11-17 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Carbontronics Synfuels Investors Lp → Vigo; 2004-11-17 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Carbontronics Synfuels Investors Lp → Vigo County Synfuel LLC.; 2004-11-17 to current/open; source msha-controller-operator-history