Goldman Sachs raises Brent crude oil forecast to $105 per barrel for December; Reverse Case $140 The bank raised its December forecast for US West Texas Intermediate to $94 a barrel from $81. Average forecasts for 2027 rose to $88 for Brent from $80 and $78 for WTI from $73. The opposite case assumes that average production in the Persian Gulf remains 3.5 million barrels per day below its average in 2025, pushing Brent to an average of around $130 in 2027. Goldman Sachs said it expects markets to add a higher risk premium over a drop in Middle East supply.