Official monthly ANP disclosures under Resolution 52/2011 — aggregated trading prices (tax-inclusive R$/MMBtu), not assessed spot benchmarks. Gaps are suppressions, not missing downloads.
Producer sales by basin
Wellhead sales between producers. Santos has been the cheapest and most stable; Other basins remain highest.
Sales to distributors & free consumers
Thermal contracts run far below non-thermal. Blank stretches are ANP suppressions (too few counterparties).
Sales to marketers
Brazil-wide. Watch volume and price spikes in recent months — still short history.