CNBC WednesdayGoldman--- U.S. needs to cut not OPEC. Happening with declining rigs. Golman's Della Vigan calls for Brent at $70 by year end. Amarita Sen a chief oil analyst at Energy Aspects told CNBC Wed. oil prices were unlikely to fall much lower than current levels. She said demand for the commodity was "phenomenal" and was absorbing much of the production.