The special section of this April issue focuses on offshore geophysical work. Publication of this issue is aligned with the annual Offshore Technology Conference (OTC), which has been held in early May in Houston since 1969. The OTC is one of the most popular and well-attended conferences, largely focused on drilling and drilling equipment. During the years, OTC and SEG partnership has grown through cross-organization support and sponsorship. SEG is one of the sponsoring societies for OTC events.