'Components for blending are scarce and too expensive,' a source said. Not only did the HSFO flat price reached a near two year high of $64.63/b on June 27, but cracks were also supported by falling crude values as ICE Brent hit a recent low on June 27 of $72.62/b. Platts assessed the physical USGC HSFO/Brent crack on June 27 at minus $7.61/b, its highest level since it was assessed at minus $7.28/b on Sept. Receive daily email alerts, subscriber notes & personalize your experience.