Mexico City :  Mexico's federal government could join a list of its states suing the companies blamed for the disastrous Gulf oil spill, claiming damage to fishing and tourism, the plaintiffs' attorney said on Wednesday.

Last month, three Mexican states sued British oil giant BP and its contractors Transocean, as well as affiliated businesses.

The northern state of Tamaulipas — which shares a border with Texas — and Veracruz with its long coastline on the Gulf of Mexico, both said the spill posed risks to beaches and marine life that would cause lost profits and potentially large clean-up bills.

Quintana Roo on the Yucatan Peninsula, home to major tourist destinations like Cancun, also filed suit in a Texas court on September 15.

"We expect the rest of the [Mexican] Gulf states will join the endeavour and potentially ... Mexico," said lawyer Enrique Serna, whose San Antonio-based practice represents the states.

The lawsuits are believed to be the first by foreign governments against the petroleum giant BP and its contractors in the aftermath of April's Deepwater Horizon rig explosion and ensuing oil spill, Serna said.

Legal claim

More than 300 civil lawsuits have already been filed in the United States by out-of-work rig workers, fishermen and hotel workers, and that number is expected to increase.

Mexico's federal government has been studying the viability of a legal claim against BP, the environment minister told Reuters in an interview in June, adding that the remnants of the oil spill could hit Mexico's shores this month.

As of August, the government of Mexico had spent about $35 million (Dh128.5 million) monitoring the spill, according to media reports.

"It is only natural for them to sue BP and the rest of the corporate defendants to reclaim such sums," Serna said. "There are a number of damages that eventually we'll be able to quantify but only time will tell," he said.

Serna said he also expects more than 1,500 individual claimants in Mexico — from fishermen to restaurant operators who have been forced to pay more for fish from Pacific waters — to eventually press claims.

A spokeswoman for Halliburton said the allegations appeared to be without merit, but BP and Transocean declined to comment.