SAO PAULO, Aug. 10, 2011 /PRNewswire/ -- Ultrapar Participacoes S.A. (BM&FBOVESPA: UGPA4 / NYSE: UGP), a company engaged in fuel distribution (Ultragaz/Ipiranga), chemicals (Oxiteno) and storage for liquid bulk (Ultracargo), hereby reports its results for the second quarter of 2011....