John S. Herold, Inc.

Acquired by IHS, August 2007. John S. Herold is a research and consulting firm providing clients with financial, operational, and capital markets data together with independent analysis of the valuation and performance of the world's energy companies. Its clients are institutional and investment money managers, commercial and investment banks, and independent oil companies. In addition to continuous research services, Herold offers online databases, specialized consulting services, and sponsorship of an energy conference.