An oil pumping jack, also known as a ‘nodding donkey,’ operates in an oil field near Samara, Russia. (Photographer: Andrey Rudakov/Bloomberg)

Goldman Sees Hard Path to OPEC+ Extension for Russia, Saudis

(Bloomberg) -- Uncertainty over oil supply and demand fundamentals is making it tougher for Russia and Saudi Arabia -- the architects of the OPEC+ deal -- to reconcile their differences over the fr...