21.   The biggest decliner was Petroleum Geo-Services ASA, a marine seismic data supplier for the oil and gas industry.

22.   The government says it has new seismic data suggesting that Tengiz and surrounding fields included in the stake hold much more oil.

23.   The revolutionary ones will be in fiber optics, deepwater drilling, underbalanced drilling and seismic data collection, he predicts.

24.   The revolutionary ones will be in fiber optics, in deepwater drilling, underbalanced drilling and in seismic data collection, he predicts.

25.   These powerful machines digest findings made with seismic data as well as physical laws and measurements to model inner Earth processes in remarkable detail.

26.   Western Atlas also is doing more speculative surveys, where service companies collect seismic data in promising areas without first having a customer for the information.

27.   Western Atlas specializes in using seismic data to map geological formations that contain oil and natural gas reserves.

28.   Western scientists who studied seismic data raised doubts about the number of tests, but India and Pakistan insisted that they had not exaggerated.

29.   Amerada Hess president and chief operating officer Sam Laidlaw yesterday said the company will conduct a preliminary evaluation of the blocks based on currently available seismic data.

30.   Bawden said he is working on a method of mathematically subtracting the groundwater effect from the seismic data.