# Relationship history for MSHA mine 0405156

Current hierarchy: **Knife River Corporation → Knife River Const → Orland Plant**

- 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:** W (Wallace) Jaxon  Baker → Orland Plant; 1991-07-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Jaxon Enterprises → Orland Plant; 1991-09-01 to 1997-02-13; source msha-controller-operator-history
- **controller_controls_operator:** W (Wallace) Jaxon  Baker → Jaxon Enterprises; 1991-09-01 to 1997-02-13; source msha-controller-operator-history
- **controller_controls_mine:** MDU Resources Group Inc → Orland Plant; 1996-08-01 to 2023-05-31; source msha-controller-operator-history
- **operator_operates_mine:** Knife River Const → Orland Plant; 1997-02-14 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** MDU Resources Group Inc → Knife River Const; 1997-02-14 to 2023-05-31; source msha-controller-operator-history
- **controller_controls_mine:** Knife River Corporation → Orland Plant; 2023-06-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Knife River Corporation → Knife River Const; 2023-06-01 to current/open; source msha-controller-operator-history