prospex energy shares rose tuesday after it said construction has been completed on the gas plant at the podere maiar1 wellsite of the selva field in italy shares at 0839 gmt were up 075 pence or 86 at 95 pence the londonlisted energy investment company said the connection to the gas grid is also complete allowing the delivery of gas to the market as soon as final operational and safety inspections are completed expected at the end of may prospexwhich has a 37 working interest in the site with the rest held by po valley energysaid that now that the connection and transmission arrangements have been finalized po has begun the process of recovering 757000 euros 823351 in performance bond funds of which eur280090 will be net to prospex the development has been delivered on schedule and within our budgeted contingency which is a significant achievement with the ongoing supplychain challenges facing the industry generally chief executive mark routh said