Japan's trading houses Marubeni Corp, Mitsui & Co and Sojitz posted a combined $13 billion in net profit for the year ended on March 31 as Russia's invasion of Ukraine lifted energy prices, but they warned that the new fiscal year will be weaker.

($1 = 135.0500 yen)

(Reporting by Katya Golubkova; Editing by Edmund Klamann)