FACTBOX: Top four derivatives banks and dealers

NEW YORK (Reuters) - The top four derivatives dealers in the United States -- units of JPMorgan Chase & Co (JPM.N), Bank of America Corp (BAC.N), Citigroup Inc (C.N) and Goldman Sachs Group Inc (GS.N) -- account for 94 percent of the contracts, according to the Office of the Comptroller of the Currency.

The Obama administration is looking at increasing supervision of over-the-counter derivatives, which account for the vast majority of outstanding derivatives.

The following is a list of derivatives exposure at the top four largest dealers, as well as total derivatives exposure for commercial banks and trust companies, according to the OCC:

BANK / TOTAL DERIVATIVES OUTSTANDING ($ MLN) / PCT OF DERIVATIVES THAT ARE OTC

JPMorgan /$87,362,672 / 97.0 pct

Bank of America /$38,304,564 / 94.3 pct

Citi / $31,887,869 / 98.0 pct

Goldman Sachs / $30,229,614 / 98.4 pct

All banks total /$200,381,607 / 96.6 pct ($193,597,433 mln)