# Relationship history for MSHA mine 0504664

Current hierarchy: **Pulpit Rock Investments LLC → South Academy Station Llc → B" STREET PROJECT"**

- 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:** South Academy Station Llc → B" STREET PROJECT"; 1999-09-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Pulpit Rock Investments LLC et al → B" STREET PROJECT"; 1999-09-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Pulpit Rock Investments LLC et al → South Academy Station Llc; 1999-09-01 to current/open; source msha-controller-operator-history