# Relationship history for MSHA mine 2902226

Current hierarchy: **Mastec Inc → FNF Construction Inc → FNF Crushing 5**

- Valid-time bounds: inclusive, date granularity
- Null end: open-ended in the upstream history row; not independent proof of present control
- Transaction-time observation: 2026-10-17T05:35:58.500035+00:00

## Valid-time edges

- **controller_controls_mine:** C J Langenfelder & Son Inc → FNF Crushing 5; 1989-01-01 to 1999-09-26; source msha-controller-operator-history
- **controller_controls_mine:** Paul  Wood → FNF Crushing 5; 1997-04-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Trigon Holdings Inc → FNF Crushing 5; 1999-09-27 to 2012-05-02; source msha-controller-operator-history
- **operator_operates_mine:** W.W.C., Inc. → FNF Crushing 5; 2001-09-25 to 2009-01-27; source msha-controller-operator-history
- **controller_controls_operator:** Paul  Wood → W.W.C., Inc.; 2001-09-25 to 2009-01-27; source msha-controller-operator-history
- **operator_operates_mine:** FNF Construction Inc → FNF Crushing 5; 2009-01-28 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Trigon Holdings Inc → FNF Construction Inc; 2009-01-28 to 2012-05-02; source msha-controller-operator-history
- **controller_controls_operator:** C J Langenfelder & Son Inc → FNF Construction Inc; 2009-01-28 to 1999-09-26; source msha-controller-operator-history
- **controller_controls_mine:** Infrastructure Holdings Company LLC → FNF Crushing 5; 2012-05-03 to 2021-02-28; source msha-controller-operator-history
- **controller_controls_operator:** Infrastructure Holdings Company LLC → FNF Construction Inc; 2012-05-03 to 2021-02-28; source msha-controller-operator-history
- **controller_controls_mine:** Mastec Inc → FNF Crushing 5; 2021-03-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Mastec Inc → FNF Construction Inc; 2021-03-01 to current/open; source msha-controller-operator-history