Sinopec Corp ended 2017 on a high, with both operational and financial performance beating expectations. Upstream production came in above Sinopec's guidance as domestic gas output surged. Underlying financial results were also strong and adjusted operating earnings rose 27% compared to 2016. Performance was driven by strong refining results and higher margins in petrochemicals. Sinopec Corp will reward shareholders by doubling total annual dividends to US$9 billion.