CNBC | US crude jumps more than $2 a barrel on short-covering: Traders CNBC Oil prices jumped on Friday to above $31 in their largest weekly rally in three months, as a cold front sweeping the United States and Europe as well as firmer financial markets gave traders reason to cash in on record short positions. Crude futures ... Oil Prices Rally Above $31 a Barrel on Central Bank Stimulus Hopes Oil prices jump on stimulus hopes despite glut Oil gains 8 percent as cold snap forces bears to back off |