MADRID | By Jaime Santisteban | Repsol could sell its 30% participation in Gas Natural before the summer. 20 % of it would go for sovereign wealth funds (yet unidentified) and 10 % through quick placement of shares. RENTA 4 believes the company will monetize the operation if other worthy investment opportunities are identified. SABADELL finds the move logical within negotiations with La Caixa (which controlls 1/3 of Repsol’s capital). ACF highlights that Gas Natural shares are turning out very profitable in dividend for Repsol (4.5%), making this sale not that attractive for that firm.