Phillips Petroleum, Eau Claire, WI

For more than 75 years, the Phillips 66 brand, with its distinctive shield icon, has been providing high-quality petroleum products and excellent customer service. The origin and heritage of the Phillips 66 brand can be traced back to the small town of Bartlesville, Okla., where in 1917, Frank Phillips co-founded Phillips Petroleum Company with his brother Lee Eldas (L.E.) Phillips. Today, the Phillips 66 Gasoline brand is owned by ConocoPhillips® and Phillips 66 Quality PROclean® Gasolines are sold at more than 3,600 retail fuel sites in the United States.