Find out Custom List created by user

I need to fetch all custom lists which are created by any end user.

How can I do that?

What I need to do is

Using this:

 private void GetAllCustomList()
{
    using (SPSite oSite = new SPSite(AppName))
    {
        using (SPWeb oWeb = oSite.OpenWeb())
        {
           // SPListCollection docLibraryColl = oWeb.GetListsOfType(SPBaseType.UnspecifiedBaseType);

            foreach (SPList list in oWeb.Lists)
            {
                if (list.BaseType == SPBaseType.GenericList && list.BaseTemplate == SPListTemplateType.GenericList)
                        Response.Write(list.Title + ", " + list.Author.ToString()  + "<br>");

            }
        }
    }

}

but it gives me lots of default List too.