# Relationship history for MSHA mine 4407290

Current hierarchy: **Omega Holdings LLC → Omega Surface Mining, LLC → Kilgore Creek**

- 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:** Alpha Natural Resources, Inc. → Kilgore Creek; 2002-12-13 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Omega Holdings LLC → Kilgore Creek; 2011-08-24 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Paramont Coal Company Virginia, LLC → Kilgore Creek; 2011-09-23 to 2018-08-16; source msha-controller-operator-history
- **controller_controls_operator:** Alpha Natural Resources, Inc. → Paramont Coal Company Virginia, LLC; 2011-09-23 to 2018-08-16; source msha-controller-operator-history
- **operator_operates_mine:** Omega Surface Mining, LLC → Kilgore Creek; 2018-08-17 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Omega Holdings LLC → Omega Surface Mining, LLC; 2018-08-17 to current/open; source msha-controller-operator-history