Business Day (registration) | Oil prices firm as US refineries re-open after Harvey Business Day (registration) London — Brent oil prices firmed on Thursday, hovering near three-and-a-half month highs as US refiners, restarting after Hurricane Harvey, increased their crude processing and the US dollar declined. Brent crude futures were up 39c at $54.59 a barrel ... Crude oil prices ease in Asia after API build less than expected |