. we also enter into commodity futures transactions through various regulated exchanges . th e amount of loss due to the credit risk of the counterparties , should the counterparties fail to per- form according to the terms of the contracts , is $ 16.7 million against which we do not hold collateral . under the terms of our swap agreements , some of our trans- actions require collateral or other security to support fi nancial instruments subject to threshold levels of exposure and counterparty credit risk