LEUCADIA <LUK> HAS 7.2 PCT OF MINSTAR <MNST> Leucadia National Corp said two of its subsidiaries have acquired a 7.2 pct stake in Minstar Inc, a corporation controlled by corporate raider Irwin Jacobs and used by him in his forays to acquire stock in companies. In a filing with the Securities and Exchange Commission, Leucadia said its LNC Investments Inc, a Newark, Del., investment firm, and Charter National Life Insurance Co, a St. Louis joint stock life insurance company, bought their combined 1,261,000 Minstar common shares for investment purposes only. The Leucadia subsidiaries had held an 11.0 pct stake in Minstar, but cut to 1.8 pct, or 313,200 shares, last July. Since July, Leucadia said its companies have bought 947,800 Minstar common shares for a total of 24.7 mln dlrs. Leucadia said it bought the Minstar stake to obtain an equity position in the company and has no intention of seeking control of it. Nearly half of Leucadia's common stock is owned by TLC Associates, a Salt Lake City, Utah, general partnership, whose partners include the chairman and president of Leucadia and other investors.