The latest domestic energy boom is sweeping through some of the nation’s driest pockets, drawing millions of gallons of water to unlock oil and gas reserves from beneath the Earth’s surface.

Hydraulic fracturing, or the drilling technique commonly known as fracking, has been used for decades to blast huge volumes of water, fine sand and chemicals into the ground to crack open valuable shale formations.

But now, as energy companies vie to exploit vast reserves west of the Mississippi, fracking’s new frontier is expanding to the same lands where crops have shriveled and waterways have dried up due to severe drought.

In Arkansas, Colorado, New Mexico, Oklahoma, Texas, Utah and Wyoming, the vast majority of the counties where fracking is occurring are also suffering from drought, according to an Associated Press analysis of industry-compiled fracking data and the U.S. Department of Agriculture’s official drought designations.

While fracking typically consumes less water than farming or residential uses, the exploration method is increasing competition for the precious resource, driving up the price of water and burdening already depleted aquifers and rivers in certain drought-stricken stretches.

Some farmers and city leaders worry that the fracking boom is consuming too much of a scarce resource, while others see the […]