Aug 12 (Reuters) - Ukraine has paused drone strikes on oil tankers using Russia's Black Sea port of Novorossiysk after ‌a request from U.S. Vice President JD Vance, the Financial ‌Times said on Wednesday, citing Ukrainian officials. alarm that Ukraine was destabilising oil markets and harming U.S. firms by targeting tankers carrying crude piped from Kazakhstan to a Caspian Pipeline Consortium (CPC) terminal at the port. Ukrainian forces recently ​stepped up strikes on Russian ‌energy infrastructure and other sites in an effort Kyiv says aims at depriving Russia of resources to fund its military. Chevron and Exxon Mobil are among the major Western oil companies operating there. Advertisement AdvertisementAdvertisement AdvertisementA U.S. official confirmed to the ​paper that the ‌administration had warned Ukraine to stop attacking non-Russian vessels in ​the Black Sea.