Since early 1998, Chesapeake has built the largest inventories of onshore leasehold (13.7 million net acres) and 3-D seismic (23.6 million acres) in the U.S. On this leasehold, we have identified more than a 10-year inventory of an estimated 36,000 net drilling locations on which we can develop approximately 6.3 tcfe of proved undeveloped reserves and approximately 65 tcfe of risked unproven reserves. Chesapeake's 14.3 tcfe of proved reserves and its risked unproved reserves together total approximately 79 tcfe. This inventory provides the opportunity to create sustained reserve and production growth for years to come.
