London stocks flat ahead of key data releases; miners weigh (Oct. 13)

(Corrects October 13 report to say UK GDP data is due on Thursday, not Wednesday)

Oct 13 (Reuters) - London's main stock indexes were little changed on Tuesday, with losses in industrials and mining offsetting gains in energy, as investors looked ahead to key economic data releases later in the week.

The blue-chip FTSE 100 index closed 0.06% lower at 10,650.33 points, giving up early session gains, while the midcap FTSE 250 edged 0.05% higher.

• Precious metal miners slipped 1.4%, weighed down by softer gold and silver prices ahead of US inflation data on Wednesday

• Industrial metal miners also fell 1.7%, with copper miner Antofagasta down 5.6%, the most on FTSE 100

• Shares of London Stock Exchange slipped 4.7% after confirming talks with private equity firm Permira for the purchase of financial data provider Octus for about $3.5 billion

• Advertising firm WPP rose 4.2% after French rival Publicis reaffirmed its full-year outlook

• The International Monetary Fund said that Britain needs to keep deficit reduction on track

• "(Finance minister) John Healey will opt for a compromise Budget on Wednesday 28th October, with limited implications for the economy and the markets," said Ruth Gregory, deputy chief UK economist, Capital Economics, in a note

• Healey will not raise capital gains tax to the same level as income tax, the FT reported on Tuesday, citing four sources

• British Petroleum's shares rose 3.7% to its highest since March after the energy giant estimated its third-quarter refining margins tripled from last year

• Betting company Entain rose 4.7% after BetMGM, its US joint venture with MGM Resorts, reported 7% higher third-quarter revenue

• Melrose Industries advanced 3.5%, after the GKN Aerospace owner said its Garden Grove plant in California was on track to resume operations by the fourth quarter

• Investors also await UK's August GDP data on Thursday

(Reporting by Darshan Kumar in Bengaluru; Editing by Sahal Muhammed)