Commission announces investigations into a new Polish tax on retailers and Luxembourg's dealings with French electric utility Engie.
The European Central Bank bought $392 million worth of corporate bonds in the first three days of such purchases last week.
France's finance minister will attempt this week to persuade Chinese officials to focus on the country's industrial prowess.
European equities closed higher, with investor sentiment boosted by a reshuffle of the team of Greek officials that are negotiating with its creditors.
Germany's E.ON suffered its biggest ever annual loss after booking billions of euros in charges on its ailing power plants.
Where Buffett goes, others tend to follow, and bankers predict more U.S. firms will issue bonds in Europe after Berkshire Hathaway's euro bond debut.
European equities rallied on Thursday, closing nearly 1 percent higher as investors reacted to a raft of corporate earnings and fresh economic data.
The $18 billion in green bonds this year compares with $10.9 billion in 2013, but with the growth come significant growing pains.
European markets closed lower on Wednesday, amid concern over the violence in Iraq.
The "green" corporate bond market will double in size this year, according to Standard & Poor's ratings services.
Asian stocks enjoyed a strong rebound on Wednesday as investors cheered a brightening picture of the global economy, but Chinese shares underperformed.
European equities closed higher on Monday, still posting gains after a rally on U.S. jobs data last Friday.
European shares closed lower on Monday, after news of an unexpected slowdown in China sparked a commodities sell-off.
European shares finished in positive territory Thursday as the ECB and the Bank of England kept interest rates unchanged.
DUBAI, Oct 11- Yemen's only liquefied natural gas terminal began exporting LNG again this week, ship tracking data showed on Thursday, after being forced to shut when its feed pipeline was blown up in late September.
LONDON, Oct 11- European equities were set to fall for a fourth straight session on Thursday, mirroring losses on Wall Street and in Asia, with concerns about weaker corporate earnings and global growth seen pushing shares towards one-month lows.
EDF Chief Executive Henri Proglio is expected to step down from French utility Veolia's board, French daily Les Echos reported. Europe's car market will not really recover without EU-led coordination of capacity cuts, Fiat and Chrysler Chief Executive Sergio Marchionne said, in an apparent back-track on comments he made at the Paris auto show last month.
BRUSSELS, Oct 10- GDF Suez' Belgian unit Electrabel said on Wednesday that it has closed its 350 MW combined-cycle gas turbine plant at Saint-Ghislain, near the French border, after an explosion earlier in the day.
*Says hopes to be profitable in France "very quickly". launched a retail gas offer in France on Tuesday, hoping to triple its number of customers by 2016 in a tightly-knit market still dominated by former monopoly GDF Suez.
MOSCOW, Oct 8- Gazprom on Monday launched the second line of the Nord Stream pipeline which brings Russian gas to Germany via the bed of the Baltic Sea, but actual gas volumes remained unchanged due to lack of sufficient growth in demand.