The new U.S. sanctions imposed on Russia in reaction to the passing of opposition leader and anticorruption crusader Alexey Navalny are threatening India's oil supply from Russia.

According to industry sources in India who spoke to Reuters, Indian refiners are worried that the most recent sanctions imposed by the United States against Russia may make it harder for them to obtain inexpensive Russian oil because freight costs are expected to rise and reduce their refining margins.

On th...