Pakistan has the second largest gas infrastructure in the world, with over 9,843 km of transmission pipelines and 104,449 km of distribution pipelines serving over 6 million domestic and 78,794 commercial consumers. The country produces around 4,176 million cubic feet of natural gas per day from various fields. State-owned companies produce around 30% and 25% of the country's natural gas, while foreign companies such as OMV produce around 17% of the total. New fields continue to be discovered, but natural gas production is expected to decline over the next 15-25 years while demand increases, making Pakistan reliant on gas imports through pipelines from Iran and Turkmenistan or liquefied natural gas.