Thanks to technologies like hydraulic fracturing and horizontal drilling, New Mexico is one of the top natural gas producers in the world – 27 th according to the latest annual numbers from 2012 just released by the American Petroleum Institute. But there’s more to the economics of drilling than just counting rigs and tallying profits. Heading into Farmington, New Mexico, the highway is packed with tanker trucks and muddy pickups with fluttery orange flags. It also offers a roadside lesson in