UK stocks were expected to open more or less flat on Friday after markets eked out another record close the previous session.Investors were likely to take a cautious approach ahead of a batch of economic data and a decision in German parliament on whether or not to approve Greece's bailout extension.City sources predict the FTSE 100 will open around three points lower than Thursday's close of 6,949.73.There will be plenty on the economic data schedule for investors to digest on Friday, including German retail sales, UK and US consumer confidence, German inflation and US gross domestic product (GDP).As for US GDP, analysts are predicting revised estimates to show 2% annualised growth in the fourth quarter, down from the initial estimate of 2.6%."Today's economic data release of the latest US Q4 GDP number is expected to reinforce those concerns about a slowdown in the US economy, and is expected to see another downward adjustment," said analyst Michael Hewson from CMC Markets.Stocks to watchLloyds Banking Group has resumed payment of its dividend after six years, with a small payment of 0.75p, as profits marginally beat market forecasts and its balance sheet grew more solid. Underlying profits surged 26% to £7.8bn, just ahead of a consensus analyst forecast of £7.7m, as the bank set aside a further £700m provision for mis-sold payment protection insurance to bring its annual total to £2.2bn.Diversified mining group Rio Tinto has announced plans to streamline its product groups and corporate functions as it looks to cut costs and simplify its structure. The group is to condense from the current five product groups into four: aluminium, copper and coal, diamonds and minerals, and iron ore. The current energy division, which houses its coal and uranium assets, is being split up with uranium joining the diamonds and minerals unit.BA owner IAG has operating profits 80.5% higher for 2014 at £1.4bn, thanks partly to cheaper fuel. The company reported that non-fuel unit costs for the quarter decreased by 0.8% at a constant currency.