# Relationship history for MSHA mine 4104179

Current hierarchy: **Daniel R  Wetzel; James J  Davis → Allen Butler Construction Inc → BUTLER PIT**

- 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:** Allen Butler Construction Inc → BUTLER PIT; 2000-06-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Allen  Butler → BUTLER PIT; 2000-06-01 to 2017-02-28; source msha-controller-operator-history
- **controller_controls_operator:** Allen  Butler → Allen Butler Construction Inc; 2000-06-01 to 2017-02-28; source msha-controller-operator-history
- **controller_controls_mine:** James J  Davis et al → BUTLER PIT; 2017-03-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** James J  Davis et al → Allen Butler Construction Inc; 2017-03-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Daniel R  Wetzel et al → Allen Butler Construction Inc; 2017-03-01 to current/open; source msha-controller-operator-history