'Ouromel-2' (IAC 171-5), 'Ouromel-3' (IAC 471-8), 'Ouromel-4' (IAC 1870-2) and 'Petisco-2' (IAC 370-8) are four new yellow flesh peaches for fresh market, selected for adaptation to the mild winter climatic conditions prevailing in the State of São Paulo. They are selected seedlings obtained from crosses between local peach cultivars and nectarines from Florida, USA. Their most important characteristics besides the low chilling requirement are the great tree vigour, high productiveness and excellent taste quality.