# Relationship history for MSHA mine 2003077

Current hierarchy: **Rodney  Wells → R. Wells Contracting Corp → UNIVERSAL**

- 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:** Wells Contracting Llc → UNIVERSAL; 1998-08-01 to 2007-12-31; source msha-controller-operator-history
- **controller_controls_mine:** Rodney  Wells → UNIVERSAL; 1998-08-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Rodney  Wells → Wells Contracting Llc; 1998-08-01 to 2007-12-31; source msha-controller-operator-history
- **controller_controls_mine:** Rodney  Wells → UNIVERSAL; 2005-11-04 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** R. Wells Contracting Corp → UNIVERSAL; 2008-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Rodney  Wells → R. Wells Contracting Corp; 2008-01-01 to current/open; source msha-controller-operator-history