100 Fastest-Growing Companies

1. Arena Resources

Eight-year-old oil and gas producerhas grown by buying properties in New Mexico and Texas.

2. T-3 Energy Services

Oilfield equipment maker fills orders from the Middle East to Russia.

3. Allis-Chalmers Energy

Oil and gas services firm has been on an acquisition binge over the past six years.

4. Bucyrus International

Wisconsin-based manufacturer specializes in equipment for mining coal and copper.

5. DXP Enterprises

This 100-year-old company supplies pumps and more to industries including oil and gas.

6. National Oilwell Varco

Houston-based oil and gas services outfit makes products under 115 brand names.

Source