* FTSE 100 rebounds, gains 1 pct

* Banks top gainers after Fed boosts sentiment

* Oils gain tracking higher crude on Iran missile test

By Atul Prakash

LONDON, July 9 (Reuters) - Britain's top share index rose early on Wednesday, as oil shares tracked higher crude prices after Iran's missile test and banks rebounded on positive comments from the Federal Reserve.

At 0820 GMT, the commodity-heavy FTSE 100 .FTSE was up 55.3 points, or 1 percent, at 5,495.8 after falling 1.3 percent on Tuesday. The UK benchmark index has fallen about 15 percent so far this year.

Oil stocks followed crude prices, which rose $1.6 a barrel after a more than $5 fall a day ago, after Iranian state media reported that the country had test-fired missiles that could reach Israel and U.S. bases in the region. Last Thursday, crude hit a record high of $145.85.

The tests occurred at a time of increased tension between Iran and Israel over Tehran's nuclear programme, which the West fears is aimed at making bombs. Iran says its nuclear programme is for power generation.