WASHINGTON - President Obama and a group called Public Citizen are both taking aim at the petroleum industry and defining who is to blame.

During a press conference in the White House Rose Garden, President Obama vowed to end a "cozy relationship" between federal regulators and the oil industry, the Associated Press reports.

Obama cited the "ridiculous spectacle" of oil industry leaders playing the blame game for the Gulf of Mexico oil spill as the reason for the change in administration policy. The president said he felt "anger and frustration" along with many Americans about just how bad the leak could ultimately become. Obama said his office??s response has "always been geared toward the possibility of a catastrophic event."

Obama castigated BP and other companies that manufactured the equipment involved in the disaster for shifting the blame and not taking responsibility for their actions. "There is enough responsibility to go around, and all parties should be willing to accept it," he said.

However, he acknowledged that the federal government did have some responsibility for not making sure that proper environmental reviews had been conducted before giving oil drilling permits.

"That cannot and will not happen anymore," the president said, adding that a fresh review of the environment steps to be taken prior to oil and gas development would be undertaken.

Meanwhile a group called Public Citizen has issued a call to boycott BP stations and take a "Beyond BP" pledge. The pledge asks people to boycott BP gas for three months. The group also has also launched a Facebook group, "1,000,000 Strong to Boycott BP."

As of Friday, the oil-rig explosion has generated more than 4 million gallons of crude oil.