Fast pyrolysis of Srnak Asphaltite (SASP) was investigated to determine yield and distribution of volatile products at different temperatures. A special sampling technique was used for collecting organic products formed at different time intervals and pyrolysis temperatures. The fast pyrolysis products were analyzed by capillary gas chromatography. The total product evolution rate was determined for a time range with 10 minutes at each pyrolysis run. n-Paraffin and 1-olefin in aliphatic fraction of pyrolysis products were classified by their carbon number. The evolution of volatile hydrocarbons increased with increasing temperature. The conversion of organic carbon to aliphatic hydrocarbons was found to be 5.9, 8.5, 12.9, 21.2, and 26.6 wt% at 450 degrees C, 500 degrees C, 550 degrees C, 600 degrees C, and 650 degrees C, respectively.