The U.S. shale boom has profoundly increased crude oil movements by both pipelines-the traditional mode of transportation-and railroads. This paper develops a model of how pipeline investment and railroad use are determined in equilibrium, emphasizing how railroads' flexibility allows them to compete with pipelines. We show that policies that address crude-by-rail's environmental externalities by increasing its costs should lead to large increases in pipeline investment and substitution of oil flows from rail to pipe. Similarly, we find that policies enjoining pipeline construction would cause 80-90% of the displaced oil to flow by rail instead.

This paper compares outcomes from informally negotiated oil and gas leases to those awarded via centralized auction. We focus on Texas, where legislative decisions in the early twentieth century assigned thousands of proximate parcels to different mineral allocation mechanisms. We show that during the fracking boom, which began unexpectedly decades later, auctioned leases generated at least 55 percent larger up-front payments and 40 percent more output than negotiated leases did. These results suggest large potential gains from employing centralized, formal mechanisms in markets that traditionally allocate in an unstructured fashion, including the broader $3 trillion market for privately owned minerals. (JEL D44, L71, Q35)