Jan 12 (Reuters) - The Federal Deposit Insurance

Corporation gave a fresh deadline of Feb. 10 to BlackRock ( BLK )

to resolve an issue regarding oversight into the asset

manager's investments in FDIC-regulated banking organizations,

Bloomberg News reported on Sunday, citing three people with

knowledge of the matter.

The FDIC may open an investigation into BlackRock ( BLK ) and demand

more information from the company if it fails to make sufficient

progress toward resolving the issues, the report said.

The move by the FDIC follows a Jan. 10 deadline that

BlackRock ( BLK ) failed to meet, according to the report.

The FDIC declined to comment, while BlackRock ( BLK ) did not

immediately respond to a request for comment on Sunday.

BlackRock ( BLK ) had asked the FDIC to extend its deadline to reach

an agreement on how the agency would oversee the asset manager's

investments in FDIC-regulated banking organizations until March

31, according to a letter the firm sent to regulators on

Thursday and seen by Reuters.

That letter was the latest move in a months-long tug of war

between the FDIC and the biggest managers of index-based mutual

funds and exchange-traded funds over the rules governing their

passive investments in FDIC-regulated banks.

In late December, Vanguard Investments hammered out terms of

such a passivity agreement with the FDIC, which immediately

afterward asked BlackRock ( BLK ) to sign a similar agreement by the

Jan. 10 deadline.

BlackRock ( BLK ), Vanguard and State Street now collectively

control some $26 trillion in assets. Since the financial crisis

of 2009, investors have poured money into their low-cost index

funds, catapulting the three firms into the ranks of the largest

owners of most large U.S. corporations.