Vietnamese Prime Minister Nguyen Tan Dung has signed an agreement to explore for oil and gas in Burma.
Mr. Dung signed the deal Tuesday during a visit to Burma's new administrative capital, Naypyidaw.
The countries' state-run media say the Vietnamese leader met Burma's top ruler, Senior General Than Shwe, and Acting Prime Minister Thein Sein.
The Vietnam News Agency says Mr. Dung told General Thein Sein he was pleased to see some good outcomes from Burma's so-called "roadmap to democracy," including last month's national congress to finalize a new draft constitution.
The report says Mr. Dung said he hoped Burma would continue to advance steadily on the road to secure peace, national reconciliation and sustainable development.
Mr. Dung's two-day visit ends today.
Burma has been ruled by the military since 1962. Its leaders say they are implementing democratic reforms, but the process to shape a new constitution has been slow and does not involve the country's main opposition party.
That party, the National League for Democracy, won elections in 1990, but the military never recognized the results of the poll.
Information for this report is provided by AFP.