# Relationship history for MSHA mine 4104495

Current hierarchy: **Arcosa, Inc → Arcosa Aggregates Texas, LLC → 2229 Seven Points**

- 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:** Trinity Industries Inc → 2229 Seven Points; 1991-12-01 to 2018-10-31; source msha-controller-operator-history
- **operator_operates_mine:** Union Hill Sand & Gravel LLC → 2229 Seven Points; 2004-09-01 to 2006-06-12; source msha-controller-operator-history
- **controller_controls_mine:** Clifford  Deal → 2229 Seven Points; 2004-09-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Clifford  Deal → Union Hill Sand & Gravel LLC; 2004-09-01 to 2006-06-12; source msha-controller-operator-history
- **operator_operates_mine:** Union Materials LP → 2229 Seven Points; 2006-06-13 to 2011-06-27; source msha-controller-operator-history
- **controller_controls_mine:** Lawrance  Rice et al → 2229 Seven Points; 2006-06-13 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Lawrance  Rice et al → Union Materials LP; 2006-06-13 to 2011-06-27; source msha-controller-operator-history
- **operator_operates_mine:** Arcosa Crushed Concrete → 2229 Seven Points; 2011-06-28 to 2021-02-28; source msha-controller-operator-history
- **controller_controls_mine:** Jay H  Krasoff → 2229 Seven Points; 2011-06-28 to 2015-11-03; source msha-controller-operator-history
- **controller_controls_operator:** Jay H  Krasoff → Arcosa Crushed Concrete; 2011-06-28 to 2015-11-03; source msha-controller-operator-history
- **controller_controls_mine:** Piping Rock LLC → 2229 Seven Points; 2015-11-04 to 2020-10-11; source msha-controller-operator-history
- **controller_controls_operator:** Piping Rock LLC → Arcosa Crushed Concrete; 2015-11-04 to 2020-10-11; source msha-controller-operator-history
- **controller_controls_mine:** Arcosa, Inc → 2229 Seven Points; 2018-11-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Arcosa, Inc → 2229 Seven Points; 2020-10-12 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Arcosa, Inc → Arcosa Crushed Concrete; 2020-10-12 to 2021-02-28; source msha-controller-operator-history
- **operator_operates_mine:** Arcosa Aggregates, Inc → 2229 Seven Points; 2021-03-01 to 2022-12-31; source msha-controller-operator-history
- **controller_controls_operator:** Arcosa, Inc → Arcosa Aggregates, Inc; 2021-03-01 to 2022-12-31; source msha-controller-operator-history
- **controller_controls_operator:** Trinity Industries Inc → Arcosa Aggregates, Inc; 2021-03-01 to 2018-10-31; source msha-controller-operator-history
- **operator_operates_mine:** Arcosa Aggregates Texas, LLC → 2229 Seven Points; 2023-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Arcosa, Inc → 2229 Seven Points; 2023-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Arcosa, Inc → Arcosa Aggregates Texas, LLC; 2023-01-01 to current/open; source msha-controller-operator-history