Shell plc (SHEL) , a London-listed energy major, has signed a long-term naphtha supply deal with QatarEnergy. Per the terms of the agreement, QatarEnergy will supply 18 million metric tons of naphtha to Shell over a duration of 20 years. The deal is expected to begin in April next year. The head of QatarEnergy has highlighted that the naphtha supply agreement is its longest and largest supply deal to date. This is the latest one in a string of deals that QatarEnergy has signed with Asian and European partne ...