# Relationship history for MSHA mine 1519219

Current hierarchy: **Jan M Berkowitz → Nepernine Mining, Inc. → Town Flats Surface**

- 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:** Anthony  Frederick et al → Town Flats Surface; 2000-09-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Associated Contracting LLC → Town Flats Surface; 2008-05-05 to 2009-10-04; source msha-controller-operator-history
- **controller_controls_operator:** Anthony  Frederick et al → Associated Contracting LLC; 2008-05-05 to 2009-10-04; source msha-controller-operator-history
- **controller_controls_operator:** Rifle Coal Company et al → Associated Contracting LLC; 2008-05-05 to 2009-10-04; source msha-controller-operator-history
- **controller_controls_mine:** U S Coal Corporation → Town Flats Surface; 2009-07-21 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Licking River Mining, LLC → Town Flats Surface; 2009-10-05 to 2015-10-21; source msha-controller-operator-history
- **controller_controls_operator:** U S Coal Corporation → Licking River Mining, LLC; 2009-10-05 to 2015-10-21; source msha-controller-operator-history
- **controller_controls_mine:** Jan M Berkowitz → Town Flats Surface; 2015-10-13 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Nepernine Mining, Inc. → Town Flats Surface; 2015-10-22 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Jan M Berkowitz → Nepernine Mining, Inc.; 2015-10-22 to current/open; source msha-controller-operator-history