RIO DE JANEIRO, Sept 1 (Reuters) - Brazil's state-led oil company Petrobras said late Monday that it would raise the wholesale price of liquefied petroleum gas (LPG) by 15 percent effective Tuesday, the first price adjustment for the essential cooking gas in 13 years.
Earlier on Monday Reuters reported that Petrobras had informed distributors of the gas-price increase, which is effective for delivery at the refinery gate at 0:00 a.m. (0300 GMT) Tuesday.
The move is part of efforts by Petroleo Brasileiro SA , as Petrobras is formally known, to reduce losses on fuel sales, a Petrobras source said, requesting anonymity because of a lack of authorization to speak to the press.
The increase also comes as Brazil's government struggles to cut spending, hold down inflation and restart an economy hamstrung by a plunge in world commodity prices and a corruption scandal that has partly paralyzed its oil industry and major construction firms.
"With retail prices uncontrolled, the market will have freedom to fix them and the increase at the refinery will increase pressure on the cost of LPG for consumers," Sindigas, a national association of LPG distributors, said in a statement.
The gas, sold in standard and ubiquitous steel bottles holding up to 13 kilograms of LPG, is essential for cooking and heating for millions in Brazil without access to piped natural gas or steady electricity supplies.
Because of its importance to many lower-income families and relatively large position in Brazil's benchmark consumer price index, the price of LPG for residential consumers has long been controlled by the government.
It is one of three fuels, along with gasoline and diesel, that Petrobras has long been forced to partly subsidize, causing losses for its refining division.
With Petrobras' refineries only able to supply 60 percent to 65 percent of the domestic needs for the fuel, which is essential to tens of millions of Brazilians, Petrobras must import much of Brazil's LPG at a loss.
The Petrobras source said the impact on consumers will be minimal, resulting in a final retail increase in the cost of gas of 3 percent to 4 percent, or about 2 reais (55 cents).
$1 = $3.62 Brazilian reais Reporting by Rodrigo Viga Gaier; Writing by Jeb Blount; Editing by Joseph Radford