# Relationship history for MSHA mine 1103247

Current hierarchy: **Goldia  Crain → K.D. Crain & Sons, Inc. → Delta Carbon Project**

- 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:** Goldia  Crain → Delta Carbon Project; 2006-05-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Southern Illinois Power Cooperative → Delta Carbon Project; 2012-10-06 to 2014-09-01; source msha-controller-operator-history
- **controller_controls_mine:** SouthEastern Illinois Electric Cooperative  et al → Delta Carbon Project; 2012-10-06 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** SouthEastern Illinois Electric Cooperative  et al → Southern Illinois Power Cooperative; 2012-10-06 to 2014-09-01; source msha-controller-operator-history
- **controller_controls_operator:** Egyptian Electric Cooperative Association et al → Southern Illinois Power Cooperative; 2012-10-06 to 2014-09-01; source msha-controller-operator-history
- **operator_operates_mine:** K.D. Crain & Sons, Inc. → Delta Carbon Project; 2014-09-02 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Goldia  Crain → K.D. Crain & Sons, Inc.; 2014-09-02 to current/open; source msha-controller-operator-history