I thank my right hon. Friend for asking a very topical question. The situation is this. We have set out very clearly our need to soberly and scientifically explore this potentially important resource. We rejected the companies’ request during the process of extraction from the first well to change the regime, on the basis that it was fit for purpose. I have been very well aware of all the scientific suggestions that somehow this regime should be reviewed. Of course, we now have an independent regulator, the Oil and Gas Authority, and it is within its remit, should it wish, to look at the science. For me, it is a scientist-led decision—it is nothing to do with politicians.