You can find the drop zone here.
This drop zone is made available for transferring files to the Norwegian Petroleum Directorate that are too large for e-mail. You can send your file to the main post office or a specific recipient at the NPD. Start typing until the wanted surname is displayed or pick name from the dropdownlist. You are asked to provide your email address. This will solely be used to send you a receipt. 7 files at a time can be sent to the drop zone from this page. The size of each batch is limited to 200 MBs. If the file(s) you wish to send is/are larger, please contact the NPD .