Demand for oil and natural gas to feed energy demand- both in the U.S. and abroad- is growing just as conventional oil & gas plays are getting scarcer. In order to guarantee supply, producers are digging deeper and seeking out more complex, expensive, and riskier plays. These new frontiers- which include the hydraulic fracturing revolution of the past two decades- are demanding more from pumping and drilling equipment. Pumps being used to inject the water-sand-chemical mixture require greater mass, horsepower, and pressure abilities than ever before.