This special section of The Leading Edge focuses on offshore geophysical applications. Its publication is aligned with the annual Offshore Technology Conference (OTC), which has taken place in Houston, Texas, since 1969 and which this year takes place 1–4 May at NRG Park in Houston. OTC is a popular and well-attended conference, largely focused on drilling and drilling equipment. Over the years, the OTC/SEG partnership has grown through cross-organization support and sponsorship. SEG is one of the sponsoring societies for OTC events. Every year, OTC facilitates various geoscience sessions through the support and efforts of the SEG-OTC technical committee. OTC and SEG appreciate the efforts of all individuals serving on the technical committee, headed by Alex Martinez and Brian Brookshire and advised by Charles Knobloch and Lance Cole, who make sure that the geoscience technical sessions become a success. OTC 2017 program details and registration and event information are available at http://2017.otcnet.org.