West Texas Intermediate crude declined on Thursday trading session falling for the fourth straight day and extending its losing streak to the longest in three months on concerns that the economic growth of the U.S. and China is easing, reducing oil demand. WTI for settlement in May fell 45 cents to $99.17 per barrel on the NYMEX and it was last seen at $99.22 as of 2:35 p.m. in Singapore.