Exclusive-Indian owners of three ships ask sanctions-hit Nayara Energy to release the vessels, sources say

NEW DELHI (Reuters) -The Indian owners of three vessels chartered to Nayara Energy have asked the Russian-backed firm to end their contracts following recent European Union sanctions on the refiner, six sources familiar with the matter said on Tuesday. India-based Seven Islands Shipping Ltd and Great Eastern Shipping Co (GESCO) have asked Nayara to release the three clean products tankers, citing concerns over the sanctions, five of the sources said. The medium-range vessels are the Bourbon and Courage, owned and managed by Seven Islands, and GESCO's tanker Jag Pooja, sources said.