Two P-Cable high-resolution seismic data sets each covering about 16 km2 of the of the seafloor and subsurface at the Snøhvit CO2 storage site. Data set HH11-ECO2-PCable1 covers an area with hundreds of small and few large pockmarks. Data set HH11-ECO2-PCable2 is located at the northern flank of the main reservoir and storage formation partly covering a large fluid flow structure. Both files are formatted in standard SEG-Y format. Sort order of the data is inlines / crosslines. Information on inline and crossline numbering and coordinates are in the extended trace header (bytes 181-204).