OPEC's decision to call an emergency meeting of its ministerial monitoring committee May 2 relieved the downward pressure on world crude prices. North Sea Brent blend for June delivery rebounded to $17.50/bbl Apr. 25 from $16.20/bbl a week earlier. WTI futures for June delivery closed at $18.66/bbl, up $1.70 on the week. All 13 ministers will attend the May 2 meeting in Geneva. As a result, the midyear ministerial meeting has been postponed to June 25 from May 25.