CNBC | Why it's time to short oil CNBC Oil prices have hit a very rough patch, once again, down just over 20 percent since January. Oversupply has caused a global glut relapse, with various regional markets swamped with crude oil, ranging from the Atlantic Basin to the North Sea to Singapore. Traders test OPEC 'whatever it takes' resolve to defend oil price Oil market sees increased conflict risk in Saudi power shift |