Highly conducting nanofibrous composite of well-oriented single-walled carbon nanotubes (SWNTs) in polyaniline (PANI) and polyethylene oxide (PEO) have been fabricated using electrospinning. The room temperature electrical conductivity show nearly four order enhancement with highest (11.9 wt%) loading of SWNT in the PANI-PEO blend. The temperature dependent conductivities are measured in the range of 30-300K and the results are analyzed by the fluctuation assisted tunneling model. (C) 2010 Elsevier B.V. All rights reserved.