The Tigers first hit a petroleum facility in Kolonnawa, a suburb of Colombo, which is jointly owned by Indian and Sri Lankan governments since 2002.
One of the bombs failed to explode, and the other fell on a tar tank which did not catch fire.
The fuel distribution facility is run by Ceylon Petroleum Storage Terminals Ltd (CPSTL), is 33 percent-owned by Lanka IOC, a unit of the Indian Oil Corporation, which is an enterprise of the government of India.
The rest is owned by Sri Lanka government's Ceylon Petroleum Corporation (CPC).
"It is a very bad thing, whether the company is owned by the Indian government or Sri Lanka," Lanka IOC Managing Director K Ramakrishnan said.
"Fortunately nothing much happened and we will be operating without any disturbance."
Lanka IOC owns a 33 percent stake in CPSTL, which was acquired from the Sri Lanka government when it entered the country's oil business.
Shell Gas Lanka Ltd, whose liquefied petroleum gas (LPG) unloading and sto