* MSCI World Index set for worst first half on record
* Oil prices record biggest first-half gains in 9 years
* Euro/dollar rises sharply, heading for two-month high
* European stocks down 0.7 percent
By Mike Dolan
LONDON, June 30 (Reuters) - Crude oil prices spiralled higher again on Monday toward record highs set late last week as a weak on continuing tensions between Israel and Iran over Tehran's nuclear programme and on further U.S. dollar weakness.
Oil's rise added to deep concerns about inflation and economic slowdown plaguing world markets on the last day of another torrid half-year -- set to be the worst six-month period for global stock indices <.MIWD00000PUS> since 2002 and the biggest first half loss on record for MSCI's world index.
And the relentless rise in oil prices, which recorded their biggest first-half rise in 9 years, continued on Monday with U.S. crude oil futures <CLc1> up more than two dollars to $142.35 a barrel -- just shy of Friday's record of $142.99.
Middle East tensions simmered over the weekend. Iran's foreign minister said on Sunday he did not believe Israel was in a position to attack his country over its nuclear programme, while an Iranian general announced plans to prepare 320,000 graves for enemy soldiers. [
]"The U.S. dollar is down and there are many high-level geopolitical news items, particularly in the Middle East, that are pushing prices up," said Mark Pervan, a senior commodities analyst at the Australian & New Zealand (ANZ) Bank in Melbourne.
"Oil is now a very jittery and news-sensitive market that is running on rumours and concerns of future supply disruptions."
OIL/DOLLAR DANCE
Hurt by rising oil prices, the U.S. dollar fell to a one-month low against a basket of major currencies.
The prospect of a European Central Bank interest rate rise on Thursday has lifted the euro <EUR=> while weak equity markets and U.S. consumer confidence at a 28-year low has scaled back expectations for how soon the Federal Reserve could boost interest rates stateside.
"The dollar has been pressured from a number of channels: the relative pricing in central banks, the shift higher in the oil price and the very sharp declines in stock markets," said Teis Knuthsen, head of FX research at Danske Markets in Copenhagen.
"But we are also concerned that the markets are pricing in aggressively the risk of a series of rate hikes from the ECB ... so potentially there is a chance that euro/dollar could falter after the meeting."
The euro rose to a three-week high of $1.5817 <EUR=>, with analysts saying that a break of technical resistance around the $1.5850 mark could open the door for a move above April's record highs around $1.6020.
The dollar also hit three week lows at 105.52 yen <JPY=>, 1.0161 Swiss francs <CHF=> and set a one-month trough of 72.128 versus a trade-weighted basket of six major currencies <.DXY>.
STOCKS UNDER MORE PRESSURE
European equities <
> also lost early gains as the high oil price fuelled concerns about consumer demand, inflation and higher interest rates"The oil price is hollowing out spending and causing potential cost pressures...It's the talisman," said Philip Isherwood, a strategist at Dresdner Kleinwort.
The FTSEurofirst 300, which was down 0.5 percent at 1185.79 points at 0830 GMT, is on track for a 20-percent loss in the first half, in sharp contrast to an 8.2-percent gain in the first half last year.
On the last day of the quarter, banks took about 2 points from the index, with UBS <UBSN.VX>, BNP Paribas <BNPP.PA> and Royal Bank of Scotland <RBS.L> all falling between 1.6 and 2.5 percent. Fortis <FOR.BR> fell 3.5 percent after Citigroup cut its price target on the stock.
Earlier, MSCI's index of shares in the Asia-Pacific region outside of Japan was down 0.04 percent <.MIAPJ0000PUS>, near a three-month low plumbed on Friday.
The broader pan-Asia index <.MIAS00000PUS> was up 0.4 percent -- although down around 14 percent so far this year in the largest first-half drop since 1992 when Japan was in a recession.
Japan's Nikkei share average <
> fell 0.5 percent on Monday and chalked up its biggest first-half decline since 1995. The index has fallen 12 percent since the start of the year.Hong Kong's Hang Seng index <
> was essentially flat, with declines in some market heavyweights such as HSBC <HSBA.L> <0005.HK> offsetting gains in resource-related shares. (Reporting by Kevin Plumberg in Hong Kong, Toni Vorobyova and Rebekah Curtis in London and Fayen Wong in Perth)