Japan’s Nippon Telegraph & Telephone Corp. said...

Japan’s Nippon Telegraph & Telephone Corp. said it has decided to purchase a third supercomputer from Cray Research Inc. of Minneapolis for about $20 million . . . British Petroleum Co. said its wholly owned subsidiary, BP North America Inc., has commenced its previously reported tender offer for any and all outstanding shares of common stock of Standard Oil Co. at $70 a share in cash.