<p><span style="font-size:11pt"><span style="font-family:Calibri,sans-serif">This article reviews the parameters of the productive horizons of the gas and gas condensate fields, using the Alan gas and gas condensate fields as an example. Lithological and stratigraphic characteristics of the deposits of the Alan gas condensate field, including the Paleozoic deposits, the Jurassic system, the middle Callovian-Lower Cimmerian stages, the Cimmerian-Tithonian stages, the Cretaceous system, the Paleogene system, the Neogene system, and the Quaternary systems, have been investigated. Moreover, geophysical studies of wells, parameters of productive formations by core, and thickness of productive horizons of the Alan gas condensate field have also been explored.</span></span></p>