# Relationship history for MSHA mine 3201001

Current hierarchy: **Scott  Chester; Kevin  McGovern → CMG Oil & Gas, Inc. → CMG Bakken PIt**

- 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:** Kevin  McGovern et al → CMG Bakken PIt; 2010-08-06 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** CMG Oil & Gas, Inc. → CMG Bakken PIt; 2013-01-30 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Kevin  McGovern et al → CMG Oil & Gas, Inc.; 2013-01-30 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Scott  Chester et al → CMG Oil & Gas, Inc.; 2013-01-30 to current/open; source msha-controller-operator-history