Abstract: A method and apparatus for marine surveying includes: towing sources in a wide-tow source geometry; towing streamers that comprise receivers; actuating at least one of the sources to create a signal; and detecting the signal with a first receiver, wherein: at least one of the source separations or the streamer separations is non-uniform, and the sources and the receivers provide a regular sampling grid for the survey area. A system includes a survey plan; sources in a wide-tow source geometry; and streamers comprising receivers, wherein: at least one of the source separations or the streamer separations is non-uniform, and the sail lines, sources, and receivers provide uniform CMP coverage for the survey area. A method includes operating a system in a survey area, the system having a non-uniform configuration with wide-tow source geometry; actuating at least one source to create a signal; and detecting the signal with a first receiver.