Quinta do Olival da Murta is a family farm near the Serra de Montejunto in Cadaval (Lisboa region). It has been organic since 2016, certified since 2021, and makes the Serra Oca wines. Its operating company, Marvãogest - Gestão de Móveis e Imóveis, Lda (NIF 510099963), is named as producer on Vinmonopolet, which lists Serra Oca Tinta Roriz via Swirl Wines AS.
nif.pt and eInforma list Marvãogest - Gestão de Móveis e Imóveis, Lda (NIF 510099963) at Rua Vivas, 34, 7330-012 Beirã (Marvão), with accounts filed for 2023 to 2025. eInforma gives quintadoolivaldamurta.pt as its website, and the company’s registered phone number matches the one on that site. The quinta is at 2550-451 Cadaval, about an hour from Lisbon next to the Serra de Montejunto. Its website says it has farmed organically since 2016, has been certified since 2021, and makes the Serra Oca wines from Portuguese grape varieties, along with an organic wine salt and eco-tourism.
On 16 October 2026, Vinmonopolet named “Marvãogest” as producer of Serra Oca Tinta Roriz (art. 17112701, NOK 149.90), active in the order range and imported by Swirl Wines AS. An earlier Serra Oca Moscatel Graúdo (art. 17279801) has been delisted.
Swirl Wines AS brings small organic and low-intervention Portuguese growers into Vinmonopolet’s order range. Serra Oca is an example of a micro-producer that sells in Norway through that specialist route instead of a large export house.
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