rebound@ (Corrects H2 fuel sales forecast in 1st paragraph, bullet point; removes erroneous forecast in 10th paragraph and corrects 11th paragraph to show forecast is for domestic market, not total sales, with H1 comparison.)
* H1 net profit up 54 pct vs year-earlier
* Q2 net highest since start of 2013 -Reuters calculations
* Sees domestic fuel market growth in H2
* Results come after oil topped $80/bbl in May
BEIJING, Aug 26 (Reuters) - China Petroleum & Chemical Corp , the country's largest refiner, reported its best quarterly profit in years on strong upstream and refining business, and said it expects higher fuel sales in the second half.
Known as Sinopec, the company said in a statement late on Sunday that first-half net income was 41.6 billion yuan ($6.05 billion), up 54 percent from the same period a year earlier. That topped its own forecast of 50 percent profit growth, issued late in July.
The company doesn't give a breakdown for second-quarter results. But according to Reuters calculations based on Sinopec's first-quarter earnings, April-June net income climbed to 22.8 billion yuan from 18.8 billion yuan in the first three months of the yea, the highest since at least the start of 2013.
The stronger earnings came after oil topped $80 a barrel in May for the first time since 2014, boosted by OPEC-led output cuts and falling Venezuelan and Libyan output, as well as by an imminent drop in Iranian exports as U.S. sanctions return.
Sinopec's bumper results also come as state oil refiners have exported record volumes of diesel and gasoline, grabbing a bigger share of the market as smaller, independent refiners struggle with tough new taxes, a government-led environmental crackdown and crippling costs from the higher crude oil.
The company's shares in Hong Kong were up 1.7 percent in early trade at HK$7.65, while the exchange benchmark index was up 1.3 percent.
Total revenue in the first six months of the year rose to 1.3 trillion yuan, up 12 percent from a year earlier, amid higher crude prices, rising natural gas production and stronger fuel margins, the statement said.
Second-quarter revenue was 679 billion yuan, according to Reuters calculations.
Still, Sinopec warned on Sunday processing rates for crude to stay flat in the second half of 2018, amid an oversupply of refined fuels.
The company said it will process 121 million tonnes of crude oil in the second half of the year, the same as in the first half, and its domestic fuel sales will be 90.5 million tonnes, compared to 88.45 million tonnes in the first half, it said in a statement to the Shanghai Stock Exchange.
"Sinopec ramped up efforts to sell fuel in domestic market by giving a discount especially for diesel in the second quarter. The discounts have boosted sales volume but hurt revenue," Eyebright Securities said in a research note last week after the company gave a results forecast.
Crude oil production in the first half fell 1.6 percent from the same period a year earlier to 143.6 million barrels while natural gas output was up 5.3 percent from a year earlier to 476.2 billion cubic feet, Sinopec said.
Sinopec will produce 146 million barrels of crude oil in the second half of 2018, it said.
Refined product sales in the first half were down 2.1 percent from the same period a year earlier.
Chinese offshore oil and gas company CNOOC Ltd last week reported its best profits since 2015.
China's largest oil producer PetroChina, will publish their final first-half results on Aug. 30.
($1 = 6.8740 Chinese yuan renminbi)
(Reporting by Christian Shepherd and Meng Meng in BEIJING; Editing by Christian Schmollinger and Kenneth Maxwell)