In 2005 the national Indian oil company ONGC exercised their right as part of the terms of the PSC to acquire a 30% stake in the two larger fields discovered to date. The company retains this option on all further discoveries in the block. 2006 saw a restructuring of Cairn Energy into three companies, Cairn Energy, Cairn India and Capricorn Energy. Block RJ-ON-90-1 was included in the assets of Cairn India, which was floated on the Indian stock market in the same year, raising almost $2 billion.