* Dollar helped by fall in oil prices
* Euro down on weak euro zone, German data
* Markets focus on G8 summit (Updates prices, adds comments, changes byline, dateline; previous LONDON)
By Gertrude Chavez-Dreyfuss
NEW YORK, July 7 (Reuters) - The dollar gained on Monday in quiet trading, drawing support from a retreat in oil prices and renewed optimism after last week's U.S. jobs report that was less bleak than many had expected.
The dollar tends to benefit from lower oil prices, which have fallen from a peak of $145.85 <CLc1>, because the United States is such a heavy energy consumer.
The euro also suffered from an unexpected drop in euro-zone investor morale in July to its lowest level since June 2005. The currency had already been hit by diminished expectations of further European Central Bank rate hikes after Thursday's 25 basis point move to 4.25 percent.
An unexpected decline in German May industrial output also darkened the outlook for the euro zone. For details, see [
]"I think the dollar's improved tone this week is due to several factors, one of them is still the residual effects of the jobs data, which did not post the steep losses that the market had priced in," said Omer Esiner, senior currency strategist, at Ruesch International in Washington.
U.S. job losses for June totalled 62,000, broadly in line with economists' expectations. Investors had factored in a much worse number after a separate report showed heavier losses in private sector employment.
"The retreat in oil prices to further below record highs has also helped the dollar," Esiner added.
The dollar index <.DXY> climbed 0.4 percent to 73.049 after earlier peaking at 73.151, a level last seen on June 25. The U.S. unit pushed 0.7 percent higher to 107.57 yen <JPY=>.
SOME FOCUS ON G8
Traders are also focusing on the annual summit in Japan of the Group of Eight industrialized nations.
G8 leaders aim to present a united front against global inflation, driven by soaring oil and food prices, though analysts say solving the problem will require input from developing as well as developed countries.
Investors are also keen to see whether G8 leaders mention this year's weakness of the U.S. dollar, although many doubt that officials will call for concrete action.
The euro eased 0.4 percent to $1.5646 <EUR=> in early New York trading, nearly three cents below two-month highs seen on Thursday before the ECB decision.
After the widely-expected rate hike on Thursday, ECB President Jean-Claude Trichet said he had no bias on further policy moves, prompting markets to trim bets for more policy tightening.
"The pendulum of expectations is in the process of swinging further away from ECB rate hikes. Currently expectations for a series of ECB hikes have been scaled back since the ECB meeting," said Brown Brothers Harriman in New York.
Near-term, analysts said the euro could come under further pressure.
One of the major movers on the day was sterling <GBP=>, which fell 0.8 percent to $1.9670 after news that British industrial output fell more than expected in May, highlighting the twin threats of a sharply slowing economy and rising inflation.
No major U.S. data are due on Monday, but San Francisco Fed President Janet Yellen will speak later in the day.
Fed Chairman Ben Bernanke will speak at a Federal Deposit Insurance Corp forum on Tuesday, and give testimony before the House Financial Services committee on Thursday, although he is expected to confine his comments to financial market regulation. (Additional reporting by Ian Chua in London; Editing by Tom Hals)