# Relationship history for MSHA mine 4202284

Current hierarchy: **Jeffrey L  Sagers; Darrell  Kirk → Terra Resources, LLC → ANTIQUE COBBLE**

- 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:** Terra Resources Llc → ANTIQUE COBBLE; 2000-04-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Darrell  Kirk et al → ANTIQUE COBBLE; 2000-04-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Darrell  Kirk et al → Terra Resources Llc; 2000-04-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Jeffrey L  Sagers et al → Terra Resources Llc; 2000-04-01 to current/open; source msha-controller-operator-history