# Relationship history for MSHA mine 1100103

Current hierarchy: **Shakespeare Oil Company Inc → Twin Rivers Stone, LLC → Godfrey 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: 2026-10-13T11:19:05.459773+00:00

## Valid-time edges

- **controller_controls_mine:** St Charles Sand Company → Godfrey Plant; 1950-01-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** C.M. Lohr Inc. → Godfrey Plant; 1950-01-01 to 2005-02-06; source msha-controller-operator-history
- **controller_controls_mine:** Lohr Mervin L → Godfrey Plant; 1950-01-01 to 2003-03-31; source msha-controller-operator-history
- **controller_controls_operator:** Lohr Mervin L → C.M. Lohr Inc.; 1950-01-01 to 2003-03-31; source msha-controller-operator-history
- **controller_controls_mine:** St Charles Sand Company → Godfrey Plant; 2003-04-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** St Charles Sand Company → C.M. Lohr Inc.; 2003-04-01 to 2005-02-06; source msha-controller-operator-history
- **operator_operates_mine:** Kimaterials Inc → Godfrey Plant; 2005-02-07 to 2018-02-15; source msha-controller-operator-history
- **controller_controls_operator:** St Charles Sand Company → Kimaterials Inc; 2005-02-07 to 2018-02-15; source msha-controller-operator-history
- **operator_operates_mine:** Twin Rivers Stone, LLC → Godfrey Plant; 2018-02-16 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Shakespeare Oil Company Inc → Godfrey Plant; 2018-02-16 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Shakespeare Oil Company Inc → Twin Rivers Stone, LLC; 2018-02-16 to current/open; source msha-controller-operator-history