U.S. Official Sees New OPEC Rise
Asst Sec Bergold says OPEC will probably decide on new price increase and possibly set production cutbacks when it meets in Geneva on Mar 26, Sen Energy Com hearing; says Saudi Arabia, most influential producer, is 'ambiguous' and has probably not yet decided whether to continue producing at current rate of 9.5 million bbls a day or cut back to 8.5 million it prefers for efficient and econ operation; notes that Libya and Algeria have cut back deliveries to regular customers; says producers want to sell more heavy crude oil and less light crude, which would require changes in refineries in importing countries; Herbert I Goodman (Gulf Trading & Transportation) notes that light crude makes up only 49% of known crude reserves of non-Communist world, but represents about 62% of its total production; Bergold por (M)