BSE Sensex and NSE Nifty declined 0.43 percent on Friday, extending losses to five sessions, with Sensex closing at 76,059.77 after an intraday low of 75,474.43. Brent crude settled at $96.98 per barrel after crossing $100 the prior session, coinciding with the 13th night of US strikes on Iran and Houthi claims of tanker attacks. Analysts cited sustained oil prices as a risk to macroeconomic indicators.