# Relationship history for MSHA mine 3402222

Current hierarchy: **James Keith  Shearer → KSRQ LLC → Shearer #1**

- 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:** Keith Shearer Dozer Service → Shearer #1; 2022-05-05 to 2023-03-30; source msha-controller-operator-history
- **controller_controls_mine:** James Keith  Shearer → Shearer #1; 2022-05-05 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** James Keith  Shearer → Keith Shearer Dozer Service; 2022-05-05 to 2023-03-30; source msha-controller-operator-history
- **operator_operates_mine:** KSRQ LLC → Shearer #1; 2023-03-31 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** James Keith  Shearer → Shearer #1; 2023-03-31 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** James Keith  Shearer → KSRQ LLC; 2023-03-31 to current/open; source msha-controller-operator-history