Much of Benton's growth in the past can be traced to the abundance of high sulfur coal, the presence of multiple railroads, rich soil and the industry of her people.

In this event, the supplier paid for the allowances, and the utility paid the contract price for lower sulfur coal.

Also during this decade, Hanna secured interests in petroleum, low sulfur coal, and mineral exploration.

Low sulfur coal was recently reported to have been found at the Baluchistan near Quetta as well.

The scrubber allows the two coal units to use less expensive high sulfur coal from West Virginia.

The plant consumes about 8 million tons of low sulfur bituminous coal each year, supplied by Peabody Energy's Kayenta mine near Kayenta, Arizona.

The project's Lively Grove underground mine is expected to produce 6 million tons of high sulfur coal per year.

Major modifications were completed in 1974 at a cost of $4.2 million to accommodate switching the facility from using natural gas as the primary fuel to low sulfur coal.

Together with its equity affiliates, Black Beauty's operations sold 27.1 million short tons (24.6 million metric tons) of low, medium, and high sulfur coal in 2004.

Many power plants have moved to a low sulfur coal to avoid the environmental problems.