Complex sentence: The U.S. government had been highly critical of Canadian involvement in Sudan oil development and in February 2000 the U.S. Treasury announced that U.S. persons were forbidden to do business with the Greater Nile Petroleum Operating Company (GNPOC) and Sudapet.
Split into simpler sentences: The U.S. government had been highly critical of Canadian involvement in Sudan oil development. In February 2000 the U.S. Treasury announced that U.S. persons were forbidden to do business with the Greater Nile Petroleum Operating Company (GNPOC) and Sudapet.