# Relationship history for MSHA mine 1518906

Current hierarchy: **Brent  Coleman → Double C Enterprises → #6**

- 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:** Ronnie  Smith → #6; 2002-12-30 to 2002-12-30; source msha-controller-operator-history
- **controller_controls_mine:** Linda S  Coleman → #6; 2002-12-31 to 2009-01-31; source msha-controller-operator-history
- **operator_operates_mine:** Double C Enterprises → #6; 2005-08-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Linda S  Coleman → Double C Enterprises; 2005-08-01 to 2009-01-31; source msha-controller-operator-history
- **controller_controls_operator:** Ronnie  Smith → Double C Enterprises; 2005-08-01 to 2002-12-30; source msha-controller-operator-history
- **controller_controls_mine:** Brent  Coleman → #6; 2009-02-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Brent  Coleman → Double C Enterprises; 2009-02-01 to current/open; source msha-controller-operator-history