Dubai: Qatar is set to substantially improve its share of the Middle East's liquefied petroleum gas (LPG) export markets and supplies from the country through 2020 are expected to remain "substantial", ExxonMobil has said.

Addressing the 24th World LPG Forum here, ExxonMobil Qatar Acting President Bart Cahir said in terms of global demand, LPG would grow faster than other energy sources, while natural gas would experience the second-highest growth rate, ahead of coal.

Furthermore, he said liquefied natural gas (LNG) demand is expected to double to more than 400 million tonnes per annum by 2025.

"We expect Qatar's share of total Middle East exports to dramatically grow from 6 percent in 2005 to around 30 per cent in 2012," said Cahir.

Although it may decline to around 25 per cent after 2015, he said Qatar's share of Middle East exports will still remain "substantial" through 2020.

"With this information in mind and from witnessing the development of the energy industry over the past several years, it is an understatement to say that this is an exciting time to be doing business in this region, especially Qatar," he said.

Asserting that Middle East supplies are expected to play a significant role in global LPG trade in the coming years, Cahir said Qatar, specifically, will contribute to the region's growing presence in the industry.

In addition to increasing supply, the regional demand for LPG is also expected to grow, he said.

The demand is expected to grow at a rate twice that of all other energy sources over the next two decades, primarily because of its flexibility as a fuel and as a feedstock, as well as its use to improve the domestic quality of life, he said.