The Petroleum (Current Model Clauses) Order 1999

Licensee to keep samples

28.  As far as reasonably practicable the Licensee shall correctly label and preserve for reference for a period of six months samples of the strata encountered in any well (including, where the site of such well is on land covered by water, the surface of such land) and samples of any petroleum or water discovered in any well in the licensed area. The Minister or any person authorised by him shall be entitled to require that part of any such sample be delivered to him and to retain any sample or part thereof so delivered, and shall be entitled to inspect and analyse any samples kept by the Licensee.