Production and marketing focusThe daily production output of ExxonMobil’s Upstream division includes over eight billion cubic feet of natural gas and around two million barrels of liquids. Despite a net decline of roughly 35 percent since 2011, natural gas remains the company’s most heavily extracted fossil fuel type. In 2021, proved reserves of ExxonMobil increased to over 18 billion barrels of oil-equivalent.
Despite fluctuations noted by its Upstream division, ExxonMobil’s chemical prime product sales saw relatively minor changes in the past two decades. Overall, ExxonMobil's operations contributed to net equity greenhouse gas emissions of around 111 million metric tons of carbon dioxide equivalent in 2020.