Oil prices fell on Wednesday, extending the previous day's more than 4% plunge, amid concerns over lower global demand growth.Brent crude futures for November fell 28 cents, or 0.4%, to $73.47 after dropping 4.9% in the previous session. US West Texas Intermediate (WTI) crude futures for October were down 31 cents, or 0.4%, to $70.03 after dropping 4.4% on Tuesday.Both contracts fell to their lowest since December, amid signs of a deal to slow global consumption growth.Source: Qatar News Agency