Список проголосовавших за комментарий "у людей походу проблемы с роллированием поз возникли<br/> <br/> December/January cash roll trades at -$2.50 amid supply overhang — traders<pre> HOUSTON, Nov 20 (Reuters) - The December/January WTI cash roll traded at -$2.50 on Friday shortly after the front-month WTI contract expired, the latest indication that the supply overhang at Cushing, Oklahoma may be getting worse. The so called "cash roll" <WTC-REFP> trades in the three days following the expiry of the prompt futures contract and allows traders to roll their long positions forward. A negative roll occurs in a contango market structure, where later-month barrels are priced at a premium to the prompt contract. The steeper discount for prompt barrels follows a volatile day of trade in the futures markets. The discount for prompt WTI futures relative to the second-month contract traded at a low of $2.90 on Friday, its widest discount since 2011 and down $1.63 a barrel from the day's high <CLc1-CLc2>. Energy monitoring service Genscape on Thursday said inventories at Cushing were up by 2.14 million barrels in one week's time as of Tuesday. </pre>"