Ranking oil companies from evil to even more evil

Get pumped: Sierra has updated its guide to choosing the least-evil gas stations. And they’ve condensed it to fit in a handy travel-sized package: a rearview-mirror air freshener, which could not be more appropriate considering how gassy Americans are. (We consume some 400 million gallons of crudeness a day!)

Below, the top eight oil companies ranked from evil to even more evil:

Top of the Barrel

• BP
• Sunoco

Middle of the Barrel

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• Royal Dutch Shell
• Chevron
• Valero Energy Corporation
• Citgo

Bottom of the Barrel

• ExxonMobil
• ConocoPhillips