# Relationship history for MSHA mine 3609954

Current hierarchy: **Robindale Energy Services Inc → ROBINDALE ENERGY SERVICES, INC. → MARMON**

- 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:** Robindale Energy Services Inc → MARMON; 2001-06-11 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Robindale Energy Services, Inc. → MARMON; 2011-09-07 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Robindale Energy Services Inc → Robindale Energy Services, Inc.; 2011-09-07 to current/open; source msha-controller-operator-history