The term Unihead was trademarked over 25 years ago as an indication of a "though-bore" wellhead system – only one load shoulder through the wellhead. Because of the straight-bore, drill-through design, Unihead wellheads are exponentially faster to install than a conventional wellhead system. Available in multiple – or single – head configurations; Unihead technology fits virtually any surface wellhead application. Currently operating on North Sea offshore platforms, Middle Eastern HPHT land rigs, and in the freezing Arctic; Unihead time-saving wellheads save an average 20 hours per installation regardless of environment.