(10)As a result of agricultural traditions and local extraction and blending practices, directly marketable virgin olive oils may be of quite different taste and quality depending on their place of origin. This may result in price differences within the same category that disturb the market. There are no substantial differences linked to origin in other categories of edible olive oil, and so indicating the place of origin on the packaging of such oil may lead consumers to believe that quality differences do exist. In order not to distort the market in edible olive oil, an obligatory Union regime should therefore be established for labelling the place of origin, which should be restricted to extra virgin and virgin olive oils which satisfy precise conditions.