Shares of refiners are taking a beating today, apparently on fears of increased costs from...

|By:, SA News Editor

Shares of refiners are taking a beating today, apparently on fears of increased costs from proposed tougher standards on gasoline. The EPA is proposing the so-called Tier 3 rules that will require refiners to reduce the sulfur content of gasoline to 10 parts per million by 2017 from 30 ppm. VLO -6.2%, TSO -3.5%, MPC -4.3%, ALJ -4.5%, PSX -3.1%, HFC -3.2%, WNR -4.8%, NTI -5.5%.