Briefing: Petrobras delivers LPG sold at steep premiums despite Lula move to annul auction, sources sayBriefing: Petrobras delivers LPG sold at steep premiums despite Lula move to annul auction, sources sayBriefing: Petrobras delivers LPG sold at steep premiums despite Lula move to annul auction, sources say

Strategic angle: Petrobras continues to supply LPG at high prices despite government efforts to reverse auction results.