The ships in question are the crude oil tanker Ocean Elegance and the chemical and oil tanker Leon Dias. Both vessels delivered crude oil from Venezuela to Cuba from late 2018 through March 2019.
The Department of the Treasury’s Office of Foreign Assets Control (OFAC) also designated the Marshall Islands-based Monsoon Navigation Corporation and Liberia’s Serenity Maritime Limited, the owners of the respective vessels, as subject to sanctions.