The marine boundary was adjusted by the Scottish Adjacent Waters Boundaries Order 1999 so that the boundary within the territorial waters (up to the 12-mile (19 km) limit) is 0.09-kilometre (0.056 mi) north of the boundary for oil installations established by the Civil Jurisdiction (Offshore Activities) Order 1987.
Mořská hranice byla určena podle Scottish Adjacent Waters Boundaries Order 1999 tak, že je hranicí v oblasti teritoriálních vod (do vzdálenosti 12 mil (19 km)), 0.09 km severně od hranice ropných plošin, schválených dle zákona Civil Jurisdiction (Offshore Activities) Order 1987.