New Delhi, March 6 -- Shares of Petronet LNG Ltd have fallen nearly 10% this week, though they have recovered somewhat from Wednesday's intraday plunge of 16%, as the conflict in West Asia rattled investors. The state-owned company has been hit hard by the shutdown of a key supplier, QatarEnergy's liquefied natural gas (LNG) liquefaction plant, after an aerial attack on its facility.

Petronet procures 8.5 million tonnes per annum (mmtpa), about half of its LNG requirements, from QatarEnergy's 82 mmtpa Ras Laffan facility, the world's largest LNG plant. Petronet operates LNG terminals that import the fuel, regasify it and sell it to consumers.

Importers are also grappling with evacuation challenges following the blockade of the Strait of...