# Relationship history for MSHA mine 0404289

Current hierarchy: **W (Wallace) Jaxon  Baker → Deer Creek Rock Co → Deer Creek Asphalt**

- 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:** Deer Creek Rock Company Inc → Deer Creek Asphalt; 1979-01-01 to 2001-03-25; source msha-controller-operator-history
- **controller_controls_mine:** Deer Creek Rock Company Inc → Deer Creek Asphalt; 1979-01-01 to 2001-03-25; source msha-controller-operator-history
- **controller_controls_operator:** Deer Creek Rock Company Inc → Deer Creek Rock Company Inc; 1979-01-01 to 2001-03-25; source msha-controller-operator-history
- **controller_controls_mine:** W (Wallace) Jaxon  Baker → Deer Creek Asphalt; 1998-10-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Deer Creek Rock Co → Deer Creek Asphalt; 2001-03-26 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** W (Wallace) Jaxon  Baker → Deer Creek Rock Co; 2001-03-26 to current/open; source msha-controller-operator-history