China's crude oil output gained 2.5 percent year on year in July, data from the National Bureau of Statistics (NBS) showed Wednesday.

The growth accelerated from a rise of 1 percent registered in June, according to the NBS.

The country's crude oil output came in at 16.3 million tonnes last month, bringing the total in the first seven months to 111.31 million tonnes.

As one of the world's largest oil buyers, the country imported 41.04 million tonnes of crude oil last month, surging 13.9 percent from the same period last year.

Its natural gas production totaled 13.9 billion cubic meters, up 6.1 percent year on year, the NBS data showed.

In the sector of coal, the output reached 320 million tonnes, up 12.2 percent year on year.

China aims to increase its annual domestic crude oil output to more than 200 million tonnes by 2020, while domestic natural gas supply capacity should exceed 360 billion cubic meters.