Advanced Resources International (ARI) is a research and consulting firm providing services related to unconventional gas (coalbed methane - CBM, gas shales, tight sands), enhanced oil recovery (EOR), and carbon sequestration (CO2 sequestration).ARI's services bring together depth of experience, industry insights and analytic capabilities for the benefit of our worldwide clientele. Our clients include major, independent and national oil and gas companies, coal producers and utilities, technology and service providers, legal and financial firms, research organizations, consortia and academia, policy groups, and governments.