This excerpt taken from the XCO 10-K filed Mar 19, 2007.
Section 11.13 Recording.
As soon as practicable after Closing, Purchaser shall record the Conveyance in the appropriate counties and/or parishes and provide Seller with copies of all recorded or approved instruments. The Conveyance is intended to convey all of the Properties being conveyed pursuant to this Agreement. Certain Properties or specific portions of the Properties that are leased from, or require the approval to transfer by, a Governmental Body are conveyed under the Conveyance and also are described and covered by other separate assignments made by Seller to Purchaser on officially approved forms, or forms acceptable to such entity, in sufficient multiple originals to satisfy applicable statutory and regulatory requirements. The interests conveyed by such separate assignments are the same, and not in addition to, the interests conveyed in the Conveyance attached as Exhibit B. Further, such assignments shall be deemed to contain the special warranty of title of Seller and all of the exceptions, reservations,
rights, titles, power and privileges set forth herein and in the Conveyance as fully and only to the extent as though they were set forth in each such separate assignment.