Also. . .

Enron Corp. said it plans to sell 15 million new shares in a public offering, boosting its common stock outstanding by 4.5%, to repay debt and finance the expansion of its retail electricity business. The offering could raise about $771 million. Enron shares fell 31 cents to close at $51.13 on the NYSE.

Halliburton Co. said the Justice Department has asked for more information about its $8.9-billion agreement to buy Dresser Industries Inc., which would create the world’s largest oil field services company. The companies said the request was anticipated and that they plan to respond quickly. Halliburton said it still expects to complete the acquisition this fall.