EIM35080 | Travelling expenses: Non-resident and qualifying new resident employees working in the United Kingdom: journeys to and from oil or gas rigs
From HM Revenue & Customs · Employment Income Manual
Sections 41 and 373 to 375 ITEPA 2003
Section 41 treats general earnings in respect of duties performed in a United Kingdom sector of the continental shelf in connection with oil or gas exploration or exploitation activities, as earnings in respect of duties performed in the United Kingdom.
The effect of Section 41 is that an employee:
who is non-UK resident or a qualifying new resident in the United Kingdom, and
who works on a gas or oil rig in a United Kingdom designated area