[1] Neftezavodsk derives from two Russian words — neft (нефть; oil) and zavod (завод; factory).

The city was founded in 1973 with construction of the oil refinery; according to Russian census data, it was categorized as a "town of urban type".

[4] Prior to losing its status as "City with district status", the city of Seýdi also had the following village councils (geňeşlikler) under its jurisdiction: Seýdi lies on the edge of the Transuguz Desert, 70 kilometers NW of Türkmenabat on the left bank of the Amu Darya.

[1] Since the collapse of Soviet Union, the Seydi refinery has been reintegrated with the Kokdumalak, Yashyldepe, Yoloten, and Kerwen oil-fields.

[1][5][6] The unit processed about half a million tonnes of oil in 2020; among the products were gasoline, asphalt, and diesel.