Nabors Industries, is the largest land drilling company in the US and one of the top international land drilling contractors, with a fleet of more than 200 land drilling rigs operating in significant oil, gas, and geothermal drilling markets worldwide. The company is also grabbing substantial market share in offshore drilling services through The biggest oil and gas producer of the country, PetroChina produced 1.1 billion barrels of oil and gas-equivalent in the first three quarters of 2018, which was a 2.2% increase compared with the same period in 2017. The company’s marketable gas output increased by 4.8% to 2.66 trillion cubic feet (tcf) The biggest contractors working in the oil and gas industry today - , Aker Solutions, Al Shaheen, Bechtel, Chiyoda Corporation, Daelim Industrial Company, Foster Wheeler, Gulf Mega Projects, Gulf Refinery Projects, Hyundai Heavy Industries, J.Ray McDermott, JGC Corporation, Khurais, Manifa, Oil And Gas Contractors, Oil And Gas Projects Middle East, Pearl GTL, Petrochemical Projects Middle East, QatarGas, SNC-Lavalin, Technip, SPECIAL REPORTS, Top 10