Could there be relief for California’s highest-in-the-country gasoline prices? Exxon Mobil Corp. wants to increase output at its hobbled Torrance refinery using old equipment, the Los Angeles Times reports. While the proposal includes using a pollution-control system to temporarily replace one damaged in an explosion earlier this year, doing so would violate air quality safety rules. However, the company, which was fined $566,600 Thursday by regulators for the February explosion at the refinery, also aims to mitigate the problem by reducing emissions. The proposal must be approved by air quality officials. The problems at the refinery are largely blamed for the state’s high pump prices.