BUZZ - Crude oil prices fall to 11-day lows due to US-Iran diplomatic developments and Saudi exports, dragging down oil stocks

September 21 - ** The S&P 500 Energy Index .SPNY fell 1.9%, tracking lower oil prices O/R

** Oil prices fell to an 11-day low as investors hoped for diplomatic progress on the Iran issue at this week's United Nations meeting and focused on the partial recovery of Saudi Arabian crude shipments

** Brent crude futures LCOc1 dropped 3.3% to $100.6 per barrel; US West Texas Intermediate crude CLc1 fell 4% to $96.28 per barrel

** Energy giants ExxonMobil XOM.N and Chevron CVX.N declined 2.7% and 1.8% respectively

** Occidental Petroleum OXY.N, ConocoPhillips COP.N, Diamondback Energy FANG.O, and Halliburton HAL.N saw decreases between 2.3% and 3%, ranking among the biggest decliners in the energy index

** Oilfield services firm SLB SLB.N slipped 0.9%

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