def METHOD_NAME(self): 
    """
    generate a oui to company lookup dict
    """
    HexOui= {}
    Hex = re.compile('.*(hex).*')
    #matches the following example "00-00-00   (hex)\t\tXEROX CORPORATION" 
    ouiLines = self.ouiRaw
    for line in ouiLines:
        if Hex.search(line) is not None: 
            #return the matched text and build a list out of it
            lineList = Hex.search(line).group().replace("\t"," ").split("  ") 
            #build a dict in the format of mac:company name 
            HexOui[lineList[0].replace("-",":")] = [lineList[2]] 
    return HexOui