Among vineyards and cow pastures in East Texas last month, roughnecks started to drill in an oilfield that is 25 years past its production peak. Houston-based oil producer Wildhorse Resource Development Corp tasked the crew with breathing new life into the field by using technology developed for fracking shale rock. In the limestone and clay Austin Chalk formation, which stretches across south Texas into central Louisiana, Wildhorse is among a growing group of U.S. producers opening a new front in the nation’s energy revolution. “The application of new technology to older plays is a winning bet,” Drew Cozby, Wildhorse’s finance chief, said in an interview. After shale producers pushed U.S. oil and gas output to all-time highs, some […]