# Relationship history for MSHA mine 4104879

Current hierarchy: **CRH PLC → Texas Materials Group, Inc → Divot Quarry**

- 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:** Charles W  Harrison Jr → Divot Quarry; 1950-01-01 to 2014-07-14; source msha-controller-operator-history
- **controller_controls_mine:** Ashland Inc → Divot Quarry; 1999-07-01 to 2006-08-27; source msha-controller-operator-history
- **controller_controls_mine:** CRH PLC → Divot Quarry; 2006-08-28 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Matthew Ward  Hanna → Divot Quarry; 2010-08-04 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Pinnacle Material, Inc. → Divot Quarry; 2011-05-02 to 2012-05-07; source msha-controller-operator-history
- **controller_controls_operator:** Matthew Ward  Hanna → Pinnacle Material, Inc.; 2011-05-02 to 2012-05-07; source msha-controller-operator-history
- **controller_controls_mine:** Matthew Ward  Hanna → Divot Quarry; 2012-04-23 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Pinnacle Materials LLC → Divot Quarry; 2012-05-08 to 2013-08-06; source msha-controller-operator-history
- **controller_controls_operator:** Matthew Ward  Hanna → Pinnacle Materials LLC; 2012-05-08 to 2013-08-06; source msha-controller-operator-history
- **operator_operates_mine:** Allied Custom Gypsum → Divot Quarry; 2013-08-07 to 2013-08-08; source msha-controller-operator-history
- **controller_controls_operator:** Charles W  Harrison Jr → Allied Custom Gypsum; 2013-08-07 to 2013-08-08; source msha-controller-operator-history
- **operator_operates_mine:** ACG Materials → Divot Quarry; 2013-08-09 to 2018-12-05; source msha-controller-operator-history
- **controller_controls_mine:** Charles W  Harrison Jr → Divot Quarry; 2013-08-09 to 2015-09-30; source msha-controller-operator-history
- **controller_controls_operator:** Charles W  Harrison Jr → ACG Materials; 2013-08-09 to 2015-09-30; source msha-controller-operator-history
- **controller_controls_mine:** H I G Capital LLC → Divot Quarry; 2014-07-15 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** H I G Capital LLC → Allied Custom Gypsum; 2014-07-15 to 2013-08-08; source msha-controller-operator-history
- **controller_controls_mine:** H I G Capital LLC → Divot Quarry; 2015-10-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** H I G Capital LLC → ACG Materials; 2015-10-01 to 2018-12-05; source msha-controller-operator-history
- **controller_controls_mine:** Angel Brothers Holdings Corp → Divot Quarry; 2017-05-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** ACG Materials → Divot Quarry; 2018-12-06 to 2021-05-10; source msha-controller-operator-history
- **controller_controls_mine:** Arcosa, Inc → Divot Quarry; 2018-12-06 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Arcosa, Inc → ACG Materials; 2018-12-06 to 2021-05-10; source msha-controller-operator-history
- **operator_operates_mine:** Century Asphalt, Ltd. → Divot Quarry; 2021-05-11 to 2021-07-30; source msha-controller-operator-history
- **controller_controls_operator:** Angel Brothers Holdings Corp → Century Asphalt, Ltd.; 2021-05-11 to 2021-07-30; source msha-controller-operator-history
- **operator_operates_mine:** Texas Materials Group, Inc → Divot Quarry; 2021-07-31 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Ashland Inc → Texas Materials Group, Inc; 2021-07-31 to 2006-08-27; source msha-controller-operator-history
- **controller_controls_operator:** CRH PLC → Texas Materials Group, Inc; 2021-07-31 to current/open; source msha-controller-operator-history