By Benjamin Horney (August 3, 2017, 6:44 PM EDT) -- Goldman Sachs Group Inc. is buying a portion of $10 billion credit facility held by Saudi Aramco as the state-owned oil giant prepares for a planned, $100 billion initial public offering, according to a Thursday report from Reuters. The report said Goldman's move comes as the New York-headquartered investment bank seeks to land a role in the record-breaking flotation. The credit facility agreement was signed in 2015, the report noted, and Goldman bought several million dollars in the secondary market from Australia and New Zealand Banking Group. Last month Britain's financial watchdog proposed a rule change that would make it easier for state-owned companies to list their companies on the U.K.'s stock markets, paving the way for Saudi Aramco to debut in London....