San Antonio-based grocery H-E-B ranks among the best grocery chains in the nation when it comes to keeping prices low amid high inflation, according to a new study. The Texas institution was ranked as the 12th-best grocer “positioned to win during inflation” and create “long-term growth and emotional connections” with customers, according to the latest Retailer Preference Index published by consumer marketing firm Dunnhumby. Dunnhumby ranked the nation’s top 69 grocery store chains using data collected from 18,000 shoppers.