Long & Littell is the successor firm to Mares & Groppe, which
was formed in 1955 to provide consulting services to the petroleum,
natural gas, refining and petrochemical industries. The firms
current name was adopted in 1976, reflecting the shift of
the firms focus from acting as business advisors to
providing analysis and forecasts of market conditions. During
the past 30 years, the firm has earned a reputation for accurate
forecasts of major changes in oil and natural gas prices.