WTI oil price fell slightly today, but remain near four-week high , due to the expectations of tomorrow's publication of official data on oil and petroleum products in the United States . As for oil Brent, its price has risen slightly .

The American Petroleum Institute will release its report on stocks later today , while a government report , scheduled for tomorrow. Analysts polled by Bloomberg, do not expect a change in oil inventory in the country last week after the index grew in 5 of the last 6 weeks. Experts expect that the stocks at the terminal at Cushing declined once again , to the lowest since December 2008, 23.4 million barrels.

Meanwhile, analysts polled by Reuters suggest that U.S. crude inventories rose 1 million barrels last week to 399.4 million record volume barrels.

Investors remained cautious ahead of the publication of minutes of the last meeting to determine monetary policy the Fed on Wednesday in order to get information about the vision of the central bank's current economic situation .

Also affects the prices of the low volume of production in Libya. Production in Libya remains at 210,000 barrels per day , compared with 1.4 million last year , as production in the fields of El Sharara and El Feel is not resumed within a week after the government reported an agreement with the rebels on opening deposits.

In Libya , OPEC members are the largest oil reserves in Africa, but production in the last three years, broken after the overthrow of former leader Gaddafi due to political instability and attacks on oil facilities .

" Whatever happens in Libya, it does not matter because it can not be worse ," - said General Director of research firm Barratt Bulletin in Sydney Jonathan Barrett .

June futures on U.S. light crude oil WTI (Light Sweet Crude Oil) fell to $ 102.46 a barrel on the New York Mercantile Exchange (NYMEX).

June futures price for North Sea Brent crude oil mixture rose 11 cents to $ 109.49 a barrel on the London exchange ICE Futures Europe.