Brent prompt month futures hiked higher, at 56.9 $/b on early Tuesday, as various third party agencies reported improved production compliance from OPEC members. Industry sources are also Diesel cracks in Europe and Asia remained supported despite the crude rally, with Singapore diesel 10ppm cracks reaching 6.4 $/b for the first time since December. Jet cracks also edged higher in Asia, at 4.5 $/b at the prompt.