# Relationship history for MSHA mine 4103112

Current hierarchy: **John H  Waters → CIMBAR Resource Inc. → CIMBAR Resources Inc.**

- 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:** Baker Hughes Inc → CIMBAR Resources Inc.; 1950-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Newpark Resources Inc → CIMBAR Resources Inc.; 1950-01-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Eisenman Chemical Company → CIMBAR Resources Inc.; 1982-04-01 to 1985-11-22; source msha-controller-operator-history
- **controller_controls_operator:** Newpark Resources Inc → Eisenman Chemical Company; 1982-04-01 to 1985-11-22; source msha-controller-operator-history
- **operator_operates_mine:** Milpark → CIMBAR Resources Inc.; 1985-11-23 to 1989-10-31; source msha-controller-operator-history
- **controller_controls_mine:** Baker-Hughes Inc & Newpark Resources Inc → CIMBAR Resources Inc.; 1985-11-23 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Baker-Hughes Inc & Newpark Resources Inc → Milpark; 1985-11-23 to 1989-10-31; source msha-controller-operator-history
- **operator_operates_mine:** Baker Hughes Oilfield Operations → CIMBAR Resources Inc.; 1989-11-01 to 2020-10-22; source msha-controller-operator-history
- **controller_controls_operator:** Baker Hughes Inc → Baker Hughes Oilfield Operations; 1989-11-01 to 2020-10-22; source msha-controller-operator-history
- **controller_controls_mine:** Halliburton Company → CIMBAR Resources Inc.; 1998-02-26 to 2003-11-30; source msha-controller-operator-history
- **controller_controls_mine:** John H  Waters → CIMBAR Resources Inc.; 2003-12-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** CIMBAR Performance Minerals → CIMBAR Resources Inc.; 2020-10-23 to 2022-11-21; source msha-controller-operator-history
- **controller_controls_operator:** Halliburton Company → CIMBAR Performance Minerals; 2020-10-23 to 2003-11-30; source msha-controller-operator-history
- **controller_controls_operator:** John H  Waters → CIMBAR Performance Minerals; 2020-10-23 to 2022-11-21; source msha-controller-operator-history
- **controller_controls_mine:** John H  Waters → CIMBAR Resources Inc.; 2022-09-27 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** CIMBAR Resource Inc. → CIMBAR Resources Inc.; 2022-11-22 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** John H  Waters → CIMBAR Resource Inc.; 2022-11-22 to current/open; source msha-controller-operator-history