Patos-Marinëz is an Albanian oil field that was discovered in 1928 and became operational in 1930.

[2] It is the biggest on-shore oil field in Europe, and with its 11,854 barrels (1,884.6 m3) per day the biggest oil producing field in Albania.

[3] The Patos Marinëz oil field is located 10 kilometres (6 mi) east of the city of Fier in south central Albania.

[4] Its proven reserves are about 2 billion barrels (320×10^6 m3).

[5] Patos Marinëz has only heavy oil and is in production since the 1930s.