At the end of the 1970s, the married couple Pastrana & Jarque (Clos de l’Obac), together with a friend of those times, René Barbier (Clos Mogador) –the son of a family of Tarragona wine merchants–, began to replant vines in El Priorat with the aim to produce some great wines there.

Over a period of more than ten years, their project aroused little interest among wine professionals and did not win the trust of financial and governmental institutions because of its great ambition, its geographical location, its promoters’ inadequate economic resources and the limited winemaking knowledge of almost all those engaged in the venture. Despite these shortcomings, however, in the ten-year period 1979-1989, this group finally succeeded in achieving and even surpassing the initial goal. At the beginning of the 1980s the team was joined by the chemist Toni Basté (Clos Basté Krug), a Catalan living in Strasbourg. He was soon followed by Fernando Garcia (Clos Setién), a wine importer in Frankfurt, and by the biologist and director of the Enology Section of the Falset Vocational Training School, Josep L. Pérez (Clos Martinet), in 1986.

These five people, together with a resident of Gratallops, Antonio Rosario (Clos Ballesteros Jové), who worked for them as a farmer, formed the whole project’s core until 1987, when it was superseded by the founding of an agricultural company that was joined by Adrian Garsed (Clos Garsed) from England and Luc Van Iseghem (Clos dels Llops) from Flanders, who were wine merchants of London and Ostend, respectively. In 1989 and 1990, before the first wine was bottled, Daphne Glorian (Clos Erasmus) from Switzerland and Álvaro Palacios from La Rioja (Clos Dofí) also joined the project, although they never came to form part of the company.

In 1993, the World Wine Guide, considered Clos de l’Obac as a one of the top 150 wines of the world.