While it has been a busy day on the company news front in the FTSE 100, there has been little to move shares in the mid-cap index.Resource stocks are mixed, with oil group Wellstream and zinc and nickel miner Talvivaara vying for top spot, but oil and gas group Melrose Resources among the heaviest fallers.The drinks sector is going well today after a well-received update from brewer SABMiller, but soft drinks maker AG Barr misses out and is among the heaviest fallers in the FTSE 250.FTSE 250 - RisersWellstream Holdings (WSM) 658.00p +4.69%Talvivaara Mining Company (TALV) 486.00p +4.29%John Wood Group (WG.) 389.60p +3.84%Eaga (EAGA) 137.90p +3.68%Charter International (CHTR) 799.00p +3.63%GKN (GKN) 148.10p +2.99%Travis Perkins (TPK) 817.00p +2.90%Galiform (GFRM) 78.25p +2.89%TalkTalk Telecom Group (TALK) 127.50p +2.82%Computacenter (CCC) 328.90p +2.78%FTSE 250 - FallersEcofin Water & Power Opportunities (ECWO) 140.50p -3.44%Brewin Dolphin (BRW) 137.30p -2.49%Imagination Technologies (IMG) 250.00p -1.96%Impax Environmental Markets (IEM) 120.50p -1.87%AG Barr (BAG) 950.00p -1.86%Provident Financial (PFG) 857.00p -1.83%Gem Diamonds (GEMD) 282.00p -1.74%Domino's Pizza UK & IRL (DOM) 333.50p -1.68%Melrose Resources (MRS) 305.00p -1.61%BH Global USD Shares (BHGU) 11.07 -1.60%