Oil Falls on Firmer Dollar Singapore, 7 Jan (ONA) --- Oil prices extended losses into a second straight session today, weighed down by a firm dollar and forecasts for ample supply. Brent futures fell 28 cents, or 0.37%, to $76.02 a barrel. US West Texas Intermediate (WTI) crude fell 33 cents, or 0.45%, to settle at $73.23. Both benchmarks rose for five days in a row last week and settled at their highest levels since October on Friday, ...