Nuverra Environmental Solutions, Inc. announced that it has entered into a First Amendment to Loan Agreement (the First Amendment) with First International Bank & Trust, a North Dakota banking corporation (the Lender), pursuant to which the Company and the Lender agreed to amend that certain Master Loan Agreement dated November 16, 2020 (the Loan Agreement) between the Company and Lender in order to increase by $510,000 the maximum availability under the letter of credit facility (the Letter of Credit Facility). As amended, the Letter of Credit Facility provides for the issuance of letters of credit of up to $5.349 million in aggregate face amount and is evidenced by an Amended and Restated Promissory Note (Letter of Credit Loan) dated January 25, 2021 (the Amended and Restated Letter of Credit Note) executed by the Company. All other terms of the Letter of Credit Facility remain unchanged.