Smells like peoples shorts burning. Burn baby burn 
Afren Plc (LON:AFR)‘s stock had its “underweight†rating reiterated by equities research analysts at Barclays in a research note issued to investors on Tuesday. They currently have a GBX 28 ($0.42) price objective on the stock. Barclays’ target price points to a potential upside of 136.49% from the company’s current price.
Watch all the sell being taken by big orders now
RNS after hours is my guess hence the jump in price to close