Also / IN BRIEF

* Securities regulators subpoenaed documents from Hollinger International Inc. and members of its board of directors, and Conrad Black stepped down as CEO two days earlier than previously announced.

* Unocal Corp. announced a gas discovery on the Kenai Peninsula, the company’s biggest gas find in Alaska. The field has an estimated 75 billion to 100 billion cubic feet of gas.

* A federal judge said Abercrombie & Fitch Co. must defend a lawsuit accusing it of misleading investors when top officers blamed a drop in share price on “unfounded rumors.”