The Galkynysh Gas Field, formerly known as Iolotan gas field or South Yolotan – Osman field, is a large natural gas field near Ýolöten in Mary Province of Turkmenistan. Galkynysh is located 75km south-east of the provincial capital Mary and about 400km south-east of the capital Ashgabat. It is the world's second-largest gas field. The field is developed by Türkmengaz. CNPC, Hyundai Engineering and Petrofac built gas processing plants.
The company engages in geologic exploration and development of oil and gas fields. The sound resource base ensures the stability of production activities and achievement of targeted volumes of hydrocarbon production. Galkynysh Gas Field carries out a significant volume of exploration work, extends the portfolio of licenses showing stable replenishment of oil and gas reserves.
It should be noted that all technological processes at the Galkynysh field related to the production, collection, processing and transportation of gas are fully automated, control rooms are equipped with electronic and other special equipment to ensure reliable operation and environmental safety of facilities.