The great Texas philosopher Matthew McConaughey once said, “I don’t want to just revolve. I want to evolve.” Few pieces of crude oil infrastructure embody that spirit of adaptation quite like ONEOK’s Longhorn Pipeline. Starting out as a Houston-bound conduit for Permian crude, Longhorn later reversed its flow and started moving refined products, then — at just the right time, in the early days of the Permian’s Shale Era rebirth — flipped back to eastbound crude service. In today’s RBN blog, we’ll detail the pipeline’s evolution and its critical role in moving Permian oil to the Gulf Coast market.