OFFICIAL COORDINATES OF U.S. OFFSHORE INSTALLATIONS WILL CHANGE
The U.S. offshore oil and gas industry will be changing the official coordinate designation for its seismic surveys, leases, wells, and platforms. This undertaking is expected to require more than 1 0 years to complete. The change is a result of the U.S. Minerals Management Service (MMS), starting in 1991, to adapt the North American Datum of 1983 (NAD-83) to the outer continental shelf. The new datum depicts more accurately the shape of the earth.