A glut of refined products has worsened the already-grim outlook for U.S. crude oil for the rest of the year and the first half of 2017, traders warned this week, as the spread between near-term and future delivery prices reached its widest in five months.

A stubborn, massive supply overhang punished crude over the winter as U.S. oil futures hit 12-year lows in February. As supply outages and production cuts increased, crude rallied and spreads tightened significantly in May.

But the unusually large amount of gasoline and oil in storage, combined with expectations of a ramp-up in crude production, has made traders more bearish on the price outlook for late 2016 and early 2017.

West Texas Intermediate (WTI) futures for delivery in September traded at a discount of as much as $2.23 to those for delivery in December on Wednesday, the biggest this year.

Turnover in that spread soared, touching a record high of more than 19,000 contracts, or about 19 million barrels of oil.

December spreads, which are the most actively traded, have also blown out in the past month. The discount of the WTI December 2016 contract to December 2017 widened to $4.11 last week. On Wednesday it traded as wide as $3.92 with over 15,000 lots traded.

In May that spread had narrowed to just 50 cents, the tightest since November 2014.

The market is concerned that gasoline supply will not clear up in the second half of 2016, causing refinery run cuts and another wave of excess crude, a North Carolina-based trader said.

via Reuters