
WCS for June delivery in Hardisty, Alberta, settled at $9.15 a barrel under the U.S. benchmark WTI, according to brokerage CalRock.
* Canadian heavy crude has been trading at a tight discount in recent months in part due to the opening of the Trans Mountain pipeline expansion one year ago, which boosted the country’s oil export capacity. On average, WCS-WTI differentials have narrowed by $4, or 23%, over the past year, according to RBC Capital Markets.
* The tight WCS discount also reflects tighter U.S. sanctions on heavy crude-producing countries such as Venezuela, which is boosting demand for non-sanctioned heavy crude producers.
* Global oil prices fell by more than $1 a barrel on Monday to settle at multi-year lows, as an OPEC+ decision to expedite its output hikes stoked fears about rising global supply at a time when the demand outlook is uncertain.
(Reporting by Amanda Stephenson in Calgary; Editing by Alan Barona)