The discount on Western Canada Select (WCS) heavy crude versus the North American benchmark West Texas Intermediate (WTI) narrowed slightly on Monday: • WCS for May delivery in Hardisty, Alberta, traded at $13.20 and $13.25 a barrel below WTI, according to brokerage CalRock, after closing at $13.45 a barrel below the benchmark on Friday. • Canadian heavy crude differentials have been largely steady after strengthening at the start of the month on news that the 600,000 barrel-per-day Trans Mountain pipeline expansion project will start operating on May 1. • Canadian oil and gas producer Tamarack Valley Energy has ... (full story)