Gasoline prices in California have been above – way above – national averages because the Exxon Mobil refinery in Torrance has been hobbled since an explosion in February. And now, a hearing scheduled for Wednesday on whether to allow the refinery to increase operations has been postponed by air quality officials, the Los Angeles Times reports. Exxon Mobil wants to use old air-pollution control equipment temporarily so it can increase production at the same time it reduces other emissions from the plant. But regulators seem unconcerned about $4 a gallon gasoline and want to study how the proposal would impact area homeowners.