Peruvian President Alan Garcia has accepted the resignation of his entire 13-member cabinet, in a bid to avert an opposition censure resolution in Congress over a oil-industry kickback scandal.

"The president has accepted our resignations presented to him on Thursday, and will proceed to reshuffle the cabinet," outgoing prime minister Jorge Del Castillo told reporters at government headquarters on Friday .

The kickback scandal has been roiling since nine audio tapes were leaked to news media covering backroom negotiations between government officials, a former congressman and a top oil baron, in a bid-rigging scheme to have Norway's Discover Petroleum win five oil exploration concessions last month.

The outrage over the alleged kickback scheme fueled a media and opposition campaign to drive Garcia's government out of office, with former presidential candidate Lourdes Flores insisting that any delay in the resignations "will make matters worse."

Leftist National Party leader Ollanta Humala said the case pointed to "serious responsibility on the part of the entire cabinet."

The political crisis coincides with Garcia's very low, 20 percent approval rating in opinion polls. Garcia is mid-way through his second five-year term in office, which ends in 2011, after serving as president in 1985-1990.

One of the reasons behind the popularity slump, according to the opposition, was Garcia's insistence in keeping Del Castillo at the government's helm.

Implicated in the kickback scandal are Romulo Leon, a former lawmaker and cabinet minister in Garcia's first administration, who is currently at large, and Alberto Quimper, a former executive with PetroPeru, the state-run oil company, who is in jail.

A Discover Petroleum representative, Fortunato Canaan, from the Dominican Republic, was allegedly the money man who provided Leon with the means to buy the backing of several government officials in the bid-rigging scam, according to published excerpts of the audio tapes.

Canaan, whom the Peru21 newspaper recently branded a "Caribbean pirate masquerading as an investor," even met with Del Castillo and Garcia at the president's office in April, published reports said.

Del Castillo, who is mentioned in two of the nine audio tapes leaked to the press, has denied having arranged Canaan's meeting with Garcia.

Discover Petroleum's headquarters in Norway on Friday announced it was closing down its operations in Peru and said it was unaware of any corruption scheme. It went on to claim it was a victim of fraud by its consultants in Peru.