ExxonMobil Aviation (Booth No. 4621) and its network of participating PremierSpirit FBOs celebrated the 20th anniversary of their customer care program by presenting three grand prize winners with checks for $5,000 here on Tuesday. Charles Schaefer of Maryland, Liam Miller of New Hampshire and Matthew Van De Hei of California were chosen based on their submissions of unique FBO feedback surveys, in which they rated the customer service, image, quality control and business performance of participating ExxonMobil FBOs. Currently, 151 FBOs participate in PremierSpirit.