Kailashtilla Gas Field (Bengali: কৈলাসটিলা গ্যাসক্ষেত্র) is a natural gas field at Sylhet, Bangladesh. It was discovered in 1962 by PakistanShell Oil Company.[1][2] It starts producing gas since 1983. It is controlled by Sylhet Gas Fields Limited.[3] This gas field is situated nearly 35 km away from Beanibazar Gas Field.[4] In 2012, conducting a 3D seismic surveys, Bapex found oil reserves of nearly 137 million barrels in Kailashtilla and Haripur; of which 109 million barrels of oil reserve at Kailashtilla and the remaining of 28 million barrels in Haripur.[2]Oil was first discovered in Haripur field in the 1980s. According to the BAPEX, the oil found in Kailashtila field is lighter and easily extractable, then that in Haripur.[5]