# Relationship history for MSHA mine 1519592

Current hierarchy: **Emily  Rabnott → Rockhampton Energy LLC → Rockhampton #1**

- 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:** Robert O  Roan → Rockhampton #1; 2007-03-12 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** M&G Mining, LLC → Rockhampton #1; 2011-05-31 to 2011-09-20; source msha-controller-operator-history
- **controller_controls_operator:** Robert O  Roan → M&G Mining, LLC; 2011-05-31 to 2011-09-20; source msha-controller-operator-history
- **operator_operates_mine:** Rockhampton Energy LLC → Rockhampton #1; 2011-09-21 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Emily  Rabnott → Rockhampton #1; 2011-09-21 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Emily  Rabnott → Rockhampton Energy LLC; 2011-09-21 to current/open; source msha-controller-operator-history