Qatar has signed a deal with Pakistan to export up to 3.75 million tons of liquefied natural gas a year, the Persian Gulf state's media reports.
The agreement was signed on the first day of two-day visit to Qatar by Pakistani Prime Minister Nawaz Sharif.
Media reports in Pakistan on February 10 estimated the deal was worth $16 billion.
Pakistani Petroleum Minister Shahid Khaqan Abbasi said the deal will fill about 20 percent of the South Asian country's gas needs.
Abbasi told Pakistan media that the deal was a "game-changer" for his country, and would help save the country $1 billion a year.
Pakistan currently faces a severe shortage of natural gas, both for electricity generation and industrial use.
Supplies of the gas could start as early as March, and would continue through 2031 under the long-term deal, Qatar news agencies reported.