The energy-rich, ex-Soviet Central Asian republic holds substantial oil resources, as well as possessing the world's fifth-largest natural gas reserves.
Geldi Chichayev, deputy environmental protection minister, said the country had invested $1.6 billion to raise oil output at Caspian oilfields.
"Turkmenistan will steadily encourage the development of the Caspian region," the official said at a conference on Caspian development in Baku, the capital of Azerbaijan.
The country plans to produce 10.4 million metric tons (some 78 million barrels) of oil in 2007.
Turkmen President Gurbanguly Berdymukhammedov said in July his country would begin exporting oil to China in 2009. Driven by a blossoming demand for energy, the Chinese government has made securing access to the largely untapped reserves of oil and natural gas in Central Asia a cornerstone of its economic policy for the next two decades.
