# Relationship history for MSHA mine 1202326

Current hierarchy: **Bronco Energy Fund Inc → B and B Mining → Pride #2**

- 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:** Donald  Blankenberger → Pride #2; 1996-05-01 to 2005-12-28; source msha-controller-operator-history
- **operator_operates_mine:** White River Coal, Inc. → Pride #2; 2002-02-20 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Donald  Blankenberger → White River Coal, Inc.; 2002-02-20 to 2005-12-28; source msha-controller-operator-history
- **controller_controls_mine:** Bronco Energy Fund Inc → Pride #2; 2005-12-29 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Bronco Energy Fund Inc → White River Coal, Inc.; 2005-12-29 to current/open; source msha-controller-operator-history