The oil company will retain a 51% stake in the new Aramco Gas Pipeline Company with the other 49% held by the consortium members. "Today, we have reached yet another major milestone in our portfolio optimisation program as we build towards a bigger and stronger gas business," said Aramco chief executive Amin Nasser. "It further underscores our commitment to long-term value creation for our shareholders, while bringing in BlackRock (NYSE:BLK) and Hassana as partners demonstrates our unique value proposition and ability to attract leading global investors to Saudi Arabia.