File photogrpah shows a gas cooker in BoroughbridgeBritish wholesale gasoline prices rose reasonably on Thursday morning as temperatures had been losing and traders priced within the possibility of the Dutch executive introducing a production cap on its huge Groningen field. Gas prices for supply on Friday have been trading at sixty five.eighty pence per therm at 0900 GMT, up zero.5 pence because opening, and costs for delivery inside the day have been up zero.2 pence to sixty five.70 pence a therm. Traders stated that the price rises had been because of the a chillier climate outlook for the rest of the week and as a result of the chance of a cap on the Groningen gas field. “The Dutch cabinet will discuss future manufacturing plans for the Groningen fuel field the following day.