The Zygh field is located in the east of Baku, 3 km south of the Surakhany oil field, south-east of the Absheron Peninsula, in the coastal part of the village of Zygh. The arch of the Zygh fold is near Zygh Lake, and the mud volcano buried here has greatly complicated its structure.
The development of the Surakhany and Garachukhur fields, located in the same tectonic zone, provides a basis for the continuation of exploration work in the southern and south-eastern directions. The first geological exploration work in the area began in 1930 with the drilling of exploration well No. 1. Although 25 wells were drilled in the area by 1935, no significant results were achieved. The Zygh field has been under industrial development since 1935. Well No. 12 gushed 86 tons of oil per day, and although it was in operation until 1940, it was shut down that year for technical reasons. Since 1936, both exploration and production wells have been drilled in the field. Oil reserves were discovered in the field through wells drilled in 1936-1941. The maximum annual production at the Zygh field lasted for several years, and until 1942 was maintained at 355,000 tons per year. Most wells were closed during World War II. Only after 1947, new wells were drilled and old wells rehabilitated, resulting in 351,000 tons of production in 1951.
As of January 11, 2024, 243 wells have been drilled in the field, and 3 wells out of 14 oil wells in the operational well stock is still operating. The hydrocarbons do not contain paraffins and sulfur, resins are 14-31%, and asphaltene is 11.5%. Since the beginning of development, 6.387 million tons of oil and 1.407 bcm of associated gas has been extracted from the field .
The field is being operated by the Absheron Operating Company Limited, acting as the operator under the Agreement on the Rehabilitation, Development and Production Sharing for the Block, including Zygh and Hovsan Oil Fields in the Republic of Azerbaijan between SOCAR, Russneft Absheron Investments Limited and SOCAR Oil Affiliate signed on November 3, 2006. The agreement became effective on October 8, 2007.