The report said Sinopec has raised output of refined oil products this year, with its first-quarter production reaching 31.55 million tonnes, an increase of 6.2 percent from the same period last year.
Sinopec last month said its 2010 net profit rose nearly 14 percent on higher oil prices and strong domestic demand for refined oil and chemical products.
It reported a net profit of 71.8 billion yuan ($11 billion).
The Beijing-based company attributed the result to China's rapid economic growth, robust oil demand and "the increase in the price of crude oil, oil products and petrochemical products."
It had said at the time that it would continue to "expand markets" in China and overseas this year, while intensifying its exploration efforts in the country's western regions.
Oil prices have surged on supply concerns as governments in the oil-rich Middle East and North Africa are hit by popular uprisings, while the Japan quake and resulting nuclear crisis led the country to seek other forms of energy other than atomic.
China Petrochemical Corp (Sinopec Group), Asia's largest oil refiner by capacity, said Tuesday it had halted refined oil exports, except those to Hong Kong and Macao, in order to bolster domestic supply. Analysts said the move would help prepare for a possible domestic fuel shortage later this year.
Due to the turmoil in the Middle East and the earthquake in Japan, Sinopec is facing pressure just to meet demand at home, the company said.
The company will keep its refineries running at full capacity, but will cut petrochemical production and reduce the workload at its chemical plant installations to boost the domestic supply of refined oil, it said. It plans to produce 10.54 million tons of refined oil products in April. The company did not say how much refined oil it would hold back from the international market.
"With the weather getting warmer, more cars hitting the road and increased demand from the construction, industrial and logistic sectors, the consumption of refined oil is expected to surge in April," said Wang Shunzeng, secretary-general of Beijing Petrol Circulation Industry Association. Meanwhile, due to inflation and the rising price of crude oil, many private refineries have reduced production, making it necessary for State refiners to step in to fill the gap, analysts said.
China's refined oil inventories fell last month after hitting record highs at the end of February, the National Development and Reform Commission (NDRC) said Tuesday.
The country's apparent refined oil use in March reached a record high of 21.73 million tons, the NDRC said.
"The inventory of refined oil is actually still at the normal level. Sinopec's move suggested that it is making early preparations for peak demand in summer and a possible fuel shortage later this year," Zhong Jian, chief analyst with C1 Energy, told the Global Times.
The country had a shortage of fuels last year, especially a diesel shortfall in the fourth quarter when electricity cuts due to power rationing caused factories to use backup diesel generators to provide power, thus pushing up diesel demand.
Zhong said that China's crude oil processing capability would rise by 17 million tons this year, but this figure is lower than for the two previous years. He also said there would be a 4-million-ton shortage of diesel oil this year