Slipping to $38.14 yesterday, the price for oil produced by the Organization of the Petroleum Exporting Countries (OPEC) reached a new low for this year, DPA quoted figures released by the cartel as showing Today. One barrel (159 liters) of OPEC-produced crude fell by $1.75 Wednesday, below the previous low of $39.34 on January 20. OPEC calculates its basket price based on 12 brands produced by its members.