Libyan leader Moammar Kadafi, taking a conciliatory stand, described the Bush Administration as "reasonable and mature" and invited U.S. and Soviet companies to explore for oil and gas in Libya, the Libyan news agency said. Col. Kadafi said he hopes to establish balanced relations with the United States and the Soviet Union, the agency said. It quoted him as saying that the Bush Administration "understands international politics and cannot repeat the ignorance of Reagan. . . ."