David Pursell, managing director for Tudor, Pickering, and Holt & Co., outlines why his firm expects $80 oil within a year. David Pursell, managing director for Tudor, Pickering and Holt & Co., addresses anomalies in the oil and gas market, including the topic of missing barrels that may be exaggerating the size of the global oversupply problem. The TPH thesis stands in stark contrast to the current consensus on Wall Street and in the industry, which argues for a “lower for longer” scenario when it comes to oil prices.