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HMRC internal manual

Oil Taxation Manual

PRT: commingling - PRT treatment prior to 1 January 1987

Where commingling occurred, the participators in the contributing fields agreed amongst themselves the basis on which the blend was allocated to each field and each participator. This allocation usually took account of both the quantity and the relative quality of the contribution by each individual field to the blend. In practice the Responsible Persons for the commingling fields submitted PRT2 Returns of oil won and saved giving the quantities allocated among the participators and the LB Oil & Gas accepted Returns made on this basis.