1.   American antitrust officials are looking at whether the OPEC cartel has violated domestic competition laws.

2.   American antitrust officials have reached many of the same conclusions as Monti.

3.   Among the topics Rite Aid is discussing with antitrust officials is how many stores it would have to divest in individual markets to satisfy competitive questions.

4.   An advisory committee of national European Union antitrust officials unanimously voted yesterday to approve the purchase to the commission, the executive agency of the European Union.

5.   And in all four cases, the antitrust officials were able to block the merger, he said.

6.   Antitrust officials currently are investigating whether the company is trying to block competitors in the server software market.

7.   AOL is the biggest company in this business, and CompuServe is the second-biggest, meaning U.S. antitrust officials will give it a close look.

8.   Antitrust officials from group of states, including Massachusetts, that have been preparing a suit against Microsoft will confer Sunday by telephone.

9.   Antitrust officials fear that Microsoft is using its dominance in the operating system market to force out rivals in other software businesses.

10.   Antitrust officials find little fault with mergers between huge regional telephone companies like Bell Atlantic Corp. and Nynex Corp.