# Relationship history for MSHA mine 3100687

Current hierarchy: **RSP Minerals → VM Buyer LLC → Standard Mineral Division**

- 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

- **operator_operates_mine:** RT Vanderbilt Co., Inc. Standard Mineral Division → Standard Mineral Division; 1950-01-01 to 2012-12-31; source msha-controller-operator-history
- **controller_controls_mine:** R T Vanderbilt Company Inc → Standard Mineral Division; 1950-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** R T Vanderbilt Company Inc → RT Vanderbilt Co., Inc. Standard Mineral Division; 1950-01-01 to 2012-12-31; source msha-controller-operator-history
- **controller_controls_mine:** R T Vanderbilt Company Inc → Standard Mineral Division; 2007-01-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Vanderbilt Minerals, LLC → Standard Mineral Division; 2013-01-01 to 2026-06-09; source msha-controller-operator-history
- **controller_controls_operator:** R T Vanderbilt Company Inc → Vanderbilt Minerals, LLC; 2013-01-01 to 2026-06-09; source msha-controller-operator-history
- **operator_operates_mine:** VM Buyer LLC → Standard Mineral Division; 2026-06-10 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** RSP Minerals → Standard Mineral Division; 2026-06-10 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** RSP Minerals → VM Buyer LLC; 2026-06-10 to current/open; source msha-controller-operator-history