On January 5, 2018, Extraction Oil & Gas, Inc. entered into a Master assignment, increase agreement and amendment no. 2 (the amendment) to that certain amended and restated credit agreement, dated as of August 16, 2017 (credit agreement) among the company, certain subsidiaries of the company (Guarantors), Wells Fargo Bank, National Association, as administrative agent and issuing lender, and the lenders named therein. Any capitalized term used and not defined herein shall have the meaning assigned to such term in the credit agreement. The amendment provides that the borrowing base under the Credit Agreement be increased to $750 million as of the November 1, 2017 redetermination of the borrowing base and that the commitment amounts be reallocated to the lenders in accordance with the schedule set forth in the amendment. While the amendment re-determined the borrowing base under the credit agreement at $750 million, the maximum amount that may be borrowed under the credit facility is subject to the current maximum lending commitments of $650 million. The amendment also provides that the maximum amount for the letter of credit issued in favor of a purchaser of the company’s crude oil be increased from $25 million to $35 million.