OREANDA-NEWS  Almost 5 million barrels of Russian Sokol crude were supposed to arrive at Indian refineries over the past four weeks. However, the cargo did not reach the recipients, as the tankers idled several miles from their destination, in one case for more than a month, Bloomberg writes.

It is not known for certain what exactly is delaying the vessels. One of the reasons may be US sanctions against tankers transporting Russian oil in violation of the price ceiling imposed by the G7 countries, the agency believes.

The U.S. Treasury Department imposed sanctions on the first two vessels related to the Russian oil trade in mid-October. This was followed by three more tankers in mid-November and three more in early December. Six of the eight vessels sanctioned belong to the Russian state-owned company PJSC Sovcomflot.

One of the vessels on the Treasury's list is the NS Century, which transported Sokol crude oil to the Indian port of Vadinar, Bloomberg points out. Two days after being included in the sanctions list, on November 16, the tanker stopped south of Sri Lanka, where it is still located. Last week, it was joined by two other Sovcomflot tankers, both also heading to Vadinar with Sokol oil, according to tanker tracking data collected by the agency.

According to Bloomberg, the NS Century tanker has been idling south of Sri Lanka since November 18, NS Commander and Sakhalin Island have been there since December 16 and 18. All three tankers were heading to Vadinar. Krymsk and Nellis, bound for India's largest port Paradip, have been very close to it since December 4 and 20, respectively. They may soon be joined by Liteyny Prospect, which is currently 560 miles from Paradip.

Each of the five stranded tankers carrying about 700,000 barrels of oil extracted from fields off the eastern coast of Sakhalin in the Russian Far East belongs to Sovcomflot. The Nellis vessel holds twice as much as each of the listed ones. Another tanker belonging to Sovcomflot completed loading on December 19 and is heading to Vadinar, where it is due to arrive on January 1.