blmBureau of Land Management (BLM) oil & gas leases and Public Land Survey System (PLSS). Search federal O&G leases, get lease details, and resolve legal land descriptions (township/range/section) to geographic coordinates. CRITICAL USAGE RULES: 1. No authentication required - ArcGIS REST services 2. Use searchLeases() to find BLM oil & gas leases 3. Use getTownshipSection() to get PLSS at a point 4. Use searchByLegalDescription() to find sections by T/R/S 5. Use getSectionGeometry() for a single section's geometry — by T/R/S+state (same input as searchByLegalDescription()) OR by { plssid, section } when you already hold a PLSSID from a prior PLSS feature; returns one feature (or null) instead of an array.