The BSE Sensex ended 300 points lower on Friday, pressured by higher crude oil prices which lifted energy sector stocks. Reliance Industries fell 1.5%, while IOC and BPCL saw losses of 2% each. Broader markets followed the negative sentiment, with the Nifty 50 closing at 18,450. Investors remain cautious ahead of the RBI monetary policy review next week. Domestic inflation trends and global crude movements are expected to influence market direction in the coming sessions.