Oil prices rose on Wednesday amid volatile trading on increasing concerns of global supply tightness from sanctions imposed on Russia, the world’s second-largest oil exporter, and on signs that exports from Kazakhstan may be disrupted. Brent crude futures were up 95 cents, or 0.82%, to $116.43 a barrel at 0816 GMT. Prices earlier rose to as high as $117.70 and at one point fell to a low of $114.45. The contract fell 14 cents in the previous session. U.S. West Texas Intermediate (WTI) crude futures rose 73 cents, or 0.67%, to $110 a barrel. The contract surged to a high of $111.35 and slipped to a low of $108.38. Prices fell 36 cents on Tuesday. The market remains on edge […]