(For a Reuters live blog on U.S., UK and European stock markets, click LIVE/ or type LIVE/ in a news window) * FTSE 100 down 0.1%, FTSE 250 off 0.2% Aug 6 (Reuters) - London’s FTSE 100 fell on Friday, dragged by weakness in heavyweight energy and banking stocks, with investors weighing the effects of inflation growth and a rise in global cases of COVID-19. The blue-chip FTSE 100 eased 0.1%, but the index was set to post its third straight weekly gain on support from strong corporate earnings. HSBC Holdings, BP and Royal Dutch Shell were among the top drags on the FTSE 100 on Friday. London Stock Exchange Group jumped 3.3% to the top of the FTSE 100 after it reported a rise of 4.6% in revenue in the first half of 2021, although it warned about a pick-up in costs in the second part of the year. The domestically focussed mid-cap index inched 0.2% lower. Outsourcer Capita rose 1.1% after it said it was on track to deliver organic revenue growth in 2021 as it swung to a first-half profit on strict cost controls and several new contracts. (Reporting by Shashank Nayar in Bengaluru; editing by Uttaresh.V) Our Standards: The Thomson Reuters Trust Principles.