WASHINGTON — Four more banks failed Friday night totaling $1.2 billion in assets and costing the Federal Deposit Insurance Corp. an estimated $320 million.

Regulators closed $497 million-asset Desert Hills Bank in Phoenix, $363 million-asset McIntosh Commercial Bank in Carrollton, Ga., $292 million-asset Unity National Bank in Cartersville, Ga., and $88 million-asset Key West Bank in Key West, Fla. A total of 41 banks have failed so far this year.

Desert Hills' failure was estimated to cost the FDIC $107 million. The agency sold the operations of the state-chartered bank to New York Community Bank in Westbury, N.Y. NYCB assumed all of Desert Hills' $426 million in deposits, and acquired essentially all of its assets. The acquirer will share losses with the FDIC on $326 million of the failed bank's assets.

The two closures in Georgia brought the tally this year in the Peach State to seven, on top of 25 last year.

McIntosh was closed by state regulators. The FDIC sold all of its $343 million in deposits and virtually all of its assets to CharterBank in West Point, Ga. The acquirer and the FDIC agreed to share losses on $263 million from the failed bank's portfolio. The resolution was estimated to cost the Deposit Insurance Fund $123 million.

The Office of the Comptroller of the Currency closed Unity National. All of its $264 million in deposits and basically all of its assets were bought by Bank of the Ozarks in Little Rock, Ark. The FDIC will share losses with the Arkansas bank on $206 million of Unity National's assets. The failure was projected to cost $67 million.

Key West, a thrift, was sold to Centennial Bank in Conway, Ark. Centennial assumed all $68 million in deposits and acquired roughly all of Key West's assets, agreeing to share losses with the FDIC on $76 million of those assets. The failure was estimated to cost the FDIC $23 million.