# Relationship history for MSHA mine 4801614

Current hierarchy: **Kurt  Croell → Croell, Inc. → Dirt Crew #2**

- 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:** Roger  Croell → Dirt Crew #2; 1950-01-01 to 2013-12-31; source msha-controller-operator-history
- **controller_controls_mine:** Menter Construction Company → Dirt Crew #2; 1979-01-01 to 2002-01-31; source msha-controller-operator-history
- **controller_controls_mine:** Steve  Loftin → Dirt Crew #2; 1985-01-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** 71 Construction → Dirt Crew #2; 2002-02-01 to 2002-03-18; source msha-controller-operator-history
- **controller_controls_operator:** Steve  Loftin → 71 Construction; 2002-02-01 to 2002-03-18; source msha-controller-operator-history
- **controller_controls_mine:** Steve  Loftin → Dirt Crew #2; 2002-02-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Menter Sand & Gravel → Dirt Crew #2; 2002-03-19 to 2008-03-28; source msha-controller-operator-history
- **controller_controls_operator:** Menter Construction Company → Menter Sand & Gravel; 2002-03-19 to 2002-01-31; source msha-controller-operator-history
- **controller_controls_operator:** Steve  Loftin → Menter Sand & Gravel; 2002-03-19 to 2008-03-28; source msha-controller-operator-history
- **operator_operates_mine:** Croell, Inc. → Dirt Crew #2; 2008-03-29 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Roger  Croell → Croell, Inc.; 2008-03-29 to 2013-12-31; source msha-controller-operator-history
- **controller_controls_mine:** Kurt  Croell → Dirt Crew #2; 2014-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Kurt  Croell → Croell, Inc.; 2014-01-01 to current/open; source msha-controller-operator-history