HEAT THE OLIVE OIL in a 3-quart heavy stock pot over low heat. Add the onions and cook slowly, without coloring, for about 7 minutes. Add the garlic, tomatoes, white wine and herbs. Cover and cook over low heat about 30 minutes, breaking up the tomatoes with a wooden spoon as they soften. Strain and reserve the liquid. Place the tomatoes in a blender or processor and puree until very smooth. Add the reserved liquid to the tomato puree and pass the soup through a strainer to remove the tomato skins and seeds. Taste for salt and pepper.