Deutsche Bank said it would redeem all of its most bullish oil exchange-traded notes (ETNs), as the U.S. government moves to boost regulation in commodities markets.

Deutsche said in a release Tuesday it would redeem outstanding PowerShares DB Crude Oil Double Long Exchange Traded Notes by Sept. 9.

As of Tuesday, the outstanding double-long notes were worth around $425 million.

The notes -- one of Deutsche's several exchange-traded products allowing investors to bet on moves in crude oil futures -- are being redeemed due to a regulatory event, the bank said in a statement.

Deutsche is redeeming the leveraged notes, designed to return double the amount of any gain in WTI crude futures, due to stricter position limits for energy futures held on NYMEX and other exchanges.

Deutsche had previously announced, on Aug. 18, that it would suspend new issuance of the notes. Several other Deutsche exchange-traded products allowing investors to bet on moves in oil prices are still offered.

The U.S. Commodities Futures Trading Commission has been pushing to rein in speculation in energy and commodities trading by imposing tighter position limits on traders, among other measures.

Deutsche Bank