Gas flaring remains a persistent global problem, one that has not improved significantly despite the introduction of direct observations of flaring from satellites and prominent global commitments to reduce the wasteful and harmful practice. In 2023, based on satellite observations, the total volume of gas flared from upstream oil and gas was 145 billion cubic meters (bcm)i—equivalent to half of Europe’s natural gas demand in that yearii—which means a global average flaring intensity of 5.0 cubic meters per barrel of oil/condensate produced (m3/bbl). This report determines, for the first time, a company’s whole flaring impact around the world by attributing flaring to individual companies for both their operated and non-operated assets. Our analysis shows that just 10 large international oil companies (IOCs)—BP, Chevron, ConocoPhillips, Eni, Equinor1, ExxonMobil, Occidental Petroleum, Repsol, Shell, and TotalEnergies—are responsible for 7% of global flaring, based on their ownership percentages in flaring assets. This is an enormous amount of flaring—about 10 bcm of gas in 2023, which is enough gas to supply Norway and Austria combined.