COSTS OF ADDING RESERVES SLIDING IN THE U.S.

Bob Tippee Managing Editor-Economics and Exploration Bob Beck Economics Editor Exploration and development in the U.S. aren't what they used to be. They're cheaper. U.S. operators are using a broadening range of technologies and strategies to make their operations ever more efficient and, in relation to volumes of oil and gas added to reserves, less costly. To be sure, it costs more in absolute terms to drill and complete an average U.S. well now than it did two decades ago. It costs