# Relationship history for MSHA mine 3003137

Current hierarchy: **Heidelberg Materials AG → Heidelberg Materials Northeast LLC → Butler Plant**

- 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:** Gene Dewitt Corporation → Butler Plant; 1950-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Hanson PLC → Butler Plant; 1988-11-14 to 2007-08-22; source msha-controller-operator-history
- **operator_operates_mine:** Genesee Le Roy Stone Corp → Butler Plant; 1994-12-01 to 2000-02-10; source msha-controller-operator-history
- **controller_controls_operator:** Gene Dewitt Corporation → Genesee Le Roy Stone Corp; 1994-12-01 to 2000-02-10; source msha-controller-operator-history
- **operator_operates_mine:** Hanson Aggregates Glsc Inc → Butler Plant; 2000-02-11 to 2002-04-11; source msha-controller-operator-history
- **controller_controls_mine:** Hanson PLC → Butler Plant; 2000-02-11 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Hanson PLC → Hanson Aggregates Glsc Inc; 2000-02-11 to 2002-04-11; source msha-controller-operator-history
- **operator_operates_mine:** Hanson Aggregates New York Inc → Butler Plant; 2002-04-12 to 2004-03-28; source msha-controller-operator-history
- **controller_controls_operator:** Hanson PLC → Hanson Aggregates New York Inc; 2002-04-12 to 2004-03-28; source msha-controller-operator-history
- **operator_operates_mine:** Hanson Aggregates Inc → Butler Plant; 2004-03-29 to 2004-06-10; source msha-controller-operator-history
- **controller_controls_operator:** Hanson PLC → Hanson Aggregates Inc; 2004-03-29 to 2004-06-10; source msha-controller-operator-history
- **operator_operates_mine:** Heidelberg Materials Northeast-NY LLC → Butler Plant; 2004-06-11 to 2025-05-29; source msha-controller-operator-history
- **controller_controls_operator:** Hanson PLC → Heidelberg Materials Northeast-NY LLC; 2004-06-11 to 2007-08-22; source msha-controller-operator-history
- **controller_controls_mine:** Heidelberg Materials AG → Butler Plant; 2007-08-23 to 2021-09-30; source msha-controller-operator-history
- **controller_controls_operator:** Heidelberg Materials AG → Hanson Aggregates Inc; 2007-08-23 to 2004-06-10; source msha-controller-operator-history
- **controller_controls_mine:** Heidelberg Materials AG → Butler Plant; 2007-08-23 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Heidelberg Materials AG → Hanson Aggregates New York Inc; 2007-08-23 to 2004-03-28; source msha-controller-operator-history
- **controller_controls_operator:** Heidelberg Materials AG → Heidelberg Materials Northeast-NY LLC; 2007-08-23 to 2025-05-29; source msha-controller-operator-history
- **controller_controls_mine:** Martin Marietta Materials Inc → Butler Plant; 2021-10-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Martin Marietta Materials Inc → Hanson Aggregates Inc; 2021-10-01 to 2004-06-10; source msha-controller-operator-history
- **operator_operates_mine:** Heidelberg Materials Northeast LLC → Butler Plant; 2025-05-30 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Heidelberg Materials AG → Heidelberg Materials Northeast LLC; 2025-05-30 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Hanson PLC → Heidelberg Materials Northeast LLC; 2025-05-30 to 2007-08-22; source msha-controller-operator-history