Chevron Corp.’s upstream assets in Colorado and Texas have clinched the highest ratings for operational and environmental performance, with its plans to market certified natural gas by year’s end gaining momentum.

Denver-based assessment company Project Canary conducted the independent certified analysis, with 82 wells achieving “Platinum” status and three earning “Gold.” Chevron and Project Canary in March had begun a pilot to independently assess five sites combined in the Permian and Denver-Julesburg (DJ) basins. 

“This certification is an important milestone in our journey to deliver affordable, reliable, ever-cleaner energy to a growing world,” Chevron’s Steve Green, president of North American Exploration and Production. 

The pilot focused on two sites...