# Relationship history for MSHA mine 2300749

Current hierarchy: **Douglas E  Kelly; Theresa D  Kelley → Kelly Limestone LLC → Kelly Limestone LLC**

- 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:** Kelly Limestone LLC → Kelly Limestone LLC; 1950-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Theresa D  Kelley et al → Kelly Limestone LLC; 1950-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Theresa D  Kelley et al → Kelly Limestone LLC; 1950-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Douglas E  Kelly et al → Kelly Limestone LLC; 1950-01-01 to current/open; source msha-controller-operator-history