# Relationship history for MSHA mine 2902250

Current hierarchy: **Jami  Jackson; Jason  Jackson → Deming Sand & Gravel LLC → Deming Sand & Gravel 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: 2026-10-17T05:35:58.500035+00:00

## Valid-time edges

- **operator_operates_mine:** Deming Sand & Gravel Inc → Deming Sand & Gravel LLC; 2003-04-29 to 2015-07-21; source msha-controller-operator-history
- **controller_controls_mine:** Joe W  Jackson  et al → Deming Sand & Gravel LLC; 2003-04-29 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Joe W  Jackson  et al → Deming Sand & Gravel Inc; 2003-04-29 to 2015-07-21; source msha-controller-operator-history
- **controller_controls_operator:** Mike H  Jackson  et al → Deming Sand & Gravel Inc; 2003-04-29 to 2015-07-21; source msha-controller-operator-history
- **operator_operates_mine:** Deming Sand & Gravel LLC → Deming Sand & Gravel LLC; 2015-07-22 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Jason  Jackson et al → Deming Sand & Gravel LLC; 2015-07-22 to 2022-12-21; source msha-controller-operator-history
- **controller_controls_operator:** Jason  Jackson et al → Deming Sand & Gravel LLC; 2015-07-22 to 2022-12-21; source msha-controller-operator-history
- **controller_controls_operator:** Tyler  Jackson et al → Deming Sand & Gravel LLC; 2015-07-22 to 2022-12-21; source msha-controller-operator-history
- **controller_controls_mine:** Jason  Jackson et al → Deming Sand & Gravel LLC; 2022-12-22 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Jason  Jackson et al → Deming Sand & Gravel LLC; 2022-12-22 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Jami  Jackson et al → Deming Sand & Gravel LLC; 2022-12-22 to current/open; source msha-controller-operator-history