Previous studies on the efficiency of oiI and gas markets have used monthly, weekly, or daily data. With the fast evolving, high-speed transaction globalized financial markets; efficiency of markets is better-explored using intraday day. In this paper, data sampled at 30-minute intervals...

We test the efficiency of the U.S. Natural Gas futures market against both observed and forecasted weather information from across the U.S., and show that the NG futures market incorporates complex meteorological information. We show that U.S. Natural Gas futures are affected by forecasted...