The campaign of geophysical exploration continued without abatement in the Gulf Coast region during 1929. Thirty-five prospective salt domes were discovered during the year. Six commercial oil fields were discovered in the Gulf Coast region and one, Van, in northeast Texas, on geophysically discovered salt domes or structure. The torsion balance was restored to favor for reconnaissance for (deep) salt domes, and by the end of the year, about eighty torsion balances were working in the Gulf Coast region. In the United States, outside of the Gulf Coast salt-dome area, the seismic torsion-balance methods, to a less extent the magnetometer, and to a very much less extent the electric method, continued in moderate or sporadic use in Texas, Louisiana, Mississippi, Arkansas, Okl homa, Kansas, Colorado, New Mexico, California, and Michigan. In foreign countries, considerable use of geophysical methods continued in Mexico, Venezuela, and Roumania, and there was some use of them in many other countries.