Dec 19- MetLife Inc, the largest U.S. life insurer, is in advanced talks to buy Banco Bilbao Vizcaya Argentaria SA's Chilean pension management unit, Bloomberg reported, citing three people with knowledge of the matter. MetLife could sign a deal for the unit- AFP Provida SA- which has a market value of more than $2 billion, within days or weeks, the report said.
*Oman becoming last country in GCC to introduce industry. DUBAI, Dec 19- Oman's central bank took a strict approach to regulating Islamic banking in rules for the sector which it released on Wednesday, setting higher standards for the industry than many other countries.
*Orix still in the running-sources. NEW YORK, Dec 19- Australia's Macquarie Group Ltd has emerged as the lead bidder to buy Robeco, the asset management arm of Dutch bank Rabobank NV, four people familiar with the matter said this week. The Netherlands' largest retail bank also received a bid from Japanese financial services firm Orix Corp for all of Robeco.
ZURICH Dec 19- Swiss bank UBS admitted fraud and accepted a $1.5 billion fine on Wednesday for its role in manipulating global benchmark interest rates. The penalty UBS agreed with U.S., UK and Swiss authorities far exceeds the $450 million levied on Britain's Barclays in June, also for rigging Libor, and the second largest ever imposed on a bank.