# Relationship history for MSHA mine 2302090

Current hierarchy: **Michael K Farmer; Elliott (Bud) E Farmer → Capital Materials, LLC → Ozark Quarry**

- 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:** Leo  Journagan → Ozark Quarry; 1978-03-09 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Leo Journagan Construction Company Inc → Ozark Quarry; 1993-08-01 to 2021-03-14; source msha-controller-operator-history
- **controller_controls_operator:** Leo  Journagan → Leo Journagan Construction Company Inc; 1993-08-01 to 2021-03-14; source msha-controller-operator-history
- **controller_controls_mine:** Michael K Farmer  et al → Ozark Quarry; 2016-05-12 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Capital Materials, LLC → Ozark Quarry; 2021-03-15 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Michael K Farmer  et al → Capital Materials, LLC; 2021-03-15 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Elliott (Bud) E Farmer  et al → Capital Materials, LLC; 2021-03-15 to current/open; source msha-controller-operator-history