All data used in the publication are open access and can be found on NLOG:
https://www.nlog.nl/datacenter/

All well data can be found here, by putting the well name in the search bar:
https://www.nlog.nl/datacenter/brh-overview

The L3NAM2012AR seismic 3D dataset can be found by using the link below. After putting the name in the search bar and clicking on the datset, a seperate window appears. When clicking on the L3NAM2012AR-1 link in the upper left corner, the actual files can be downloaded from the 'Signaalgegevens' tab.   
https://www.nlog.nl/datacenter/smc-3d-surveys

An overview of all Dutch seismic and well data in map view can be found here:
https://www.thermogis.nl/mapviewer