ExxonMobil Corp., the world's largest integrated oil and gas firm, would have to shell out $134 million to clean up the oil spill in Yellowstone River, Montana last July.

The amount is higher by threefold compared to the $42.6 million earlier estimated.

The clean up fund would be used to pay for the cost of emergency response, the payment of personnel, equipment cost, and landowner's claim.

The spill was caused by the rupture of a pipeline under the Yellowstone River, near Billings Mountain in July 2.

Hundreds of residents in the surrounding were evacuated due to the fear of a possible explosion which may result from the petroleum fumes.

ExxonMobil estimates that about 750 to 1,000 barrels of oil were leaked from the pipe for about a half-hour before it was shut down.

According to the Natural Resources Defense Council, the Yellowstone River that time was at high flood, which causes the oil spread into neighbouring fields and yards.

Huffington Post reported that several land owner filed a lawsuit against ExxonMobil for the "long-term harm to their property and businesses."

Land owners claimed to have suffered "damage including trespass, nuisance and stigma," since they would have to disclose the occurrence of an oil spill in the event that they choose to sell their land.

The report said the farmers complained about the destruction of their farmlands due to the spill.

"I don't know what oil will do to the microorganisms that actually grow stuff. I am also worried that the remediation efforts will take forever, take 50-to-60 per cent of this place out of production for an indefinite future," CNN quoted Farmer Mike Scott as saying.

Natural habitats in the surrounding areas, home to numerous wildlife, were also damaged by the spill.