Mobile Offshore Drilling Units, or MODU, are facilities designed or modified to engage in drilling and exploration activities. The term MODU includes drilling vessels, semisubmersibles, submersibles, jack-ups, and similar facilities that can be moved without substantial effort. These facilities may or may not have self-propulsion equipment on board and may require dynamic positioning equipment or mooring systems to maintain their position.

To report MODU information please reference the Submit Report section of the Maritime Safety Information portal.

To view Mobile Offshore Drilling Units in Google Earth, download this WinZip file, extract the .kmz file to your computer's hard drive, and drag it onto the Google Earth viewing screen.

To download the Mobile Offshore Drilling Units as an Arc Shape file, click here.

The .kmz and Arc Shape files are updated with the latest MODU information each Thursday afternoon EST.