# Relationship history for MSHA mine 2200582

Current hierarchy: **Oil Dri Corporation Of America → Blue Mountain Production Company LLC → Jasper Creek Mine**

- 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:** Ami Dri Inc → Jasper Creek Mine; 1986-09-01 to 1988-12-14; source msha-controller-operator-history
- **controller_controls_mine:** James V  Farrow → Jasper Creek Mine; 1986-09-01 to 1988-12-14; source msha-controller-operator-history
- **controller_controls_operator:** James V  Farrow → Ami Dri Inc; 1986-09-01 to 1988-12-14; source msha-controller-operator-history
- **operator_operates_mine:** Blue Mountain Production Company LLC → Jasper Creek Mine; 1988-12-15 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Oil Dri Corporation Of America → Jasper Creek Mine; 1988-12-15 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Oil Dri Corporation Of America → Blue Mountain Production Company LLC; 1988-12-15 to current/open; source msha-controller-operator-history