Specialists of SOCAR are working out program on exploratory drilling on the perspective areas, Nakhchivan and Babek, a source in SOCAR informed Trend. American oil giant, ExxonMobil earlier rejected to develop the perspective area of Nakhchivan. Trend has been informed by SOCAR that the most efficient drilling depth of these areas is currently studied. The preliminary exploratory well depth on Nakhchivan will reach 6,200 meters, and 6,400 meters вЂ" on Babek. Negotiations with the owners of the Heydar Aliyev Drilling Rig (former Lider (Leader), which is expected to drill on the areas are going onРµ.