# Relationship history for MSHA mine 1100154

Current hierarchy: **Christine D O'Neal; August L O'Neal; Ian K O'Neal → R L O'Neal & Sons Inc → O'Neal 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

- **operator_operates_mine:** R L O'Neal & Sons Inc → O'Neal Quarry; 1950-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** John L O'Neal et al → O'Neal Quarry; 1950-01-01 to 2022-06-30; source msha-controller-operator-history
- **controller_controls_operator:** John L O'Neal et al → R L O'Neal & Sons Inc; 1950-01-01 to 2022-06-30; source msha-controller-operator-history
- **controller_controls_mine:** Christine D O'Neal et al → O'Neal Quarry; 2022-07-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Christine D O'Neal et al → R L O'Neal & Sons Inc; 2022-07-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Ian K O'Neal et al → R L O'Neal & Sons Inc; 2022-07-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** August L O'Neal et al → R L O'Neal & Sons Inc; 2022-07-01 to current/open; source msha-controller-operator-history