Grantor has, and Grantor covenants to maintain, good and marketable title to the Property, free and clear of all liens, security interests, and encumbrances except those permitted by Section 8.03 of the Credit Agreement (“ Permitted Encumbrances ”).  Grantor will defend title to the Property, subject as aforesaid, against the claims and demands of all persons claiming or to claim the same or any part thereof.  The ownership by Grantor of the Mortgaged Properties does and will, with respect to each well or unit identified on Exhibit A , entitle Grantor to receive (subject to the terms and provisions of this Deed of Trust) a decimal or percentage share of the oil, gas and other hydrocarbons produced from, or allocated to, such well or unit equal to not less than the decimal or percentage share set forth, for such well or unit, in the column headed [“ NRI ”] on Exhibit A , and cause Grantor to be obligated to bear a decimal or percentage share of the cost of operation of such well or unit equal to not more than the decimal or percentage share set forth, for such well or unit, in the column headed [“ WI ”] on Exhibit A , except to the extent of any proportionate corresponding increase in net revenue interest.  The above-described shares of production which Grantor is entitled to receive and shares of expenses which Grantor is obligated to bear are not and will not be subject to change (other than changes which arise pursuant to non-consent provisions of operating agreements described in Exhibit A in connection with operations hereafter proposed), except, and only to the extent that, such changes are reflected in Exhibit A .  There is not and will not be any unexpired financing statement covering any part of the Property on file in any public office naming any party other than Agent as secured party except those covering Property permitted to be encumbered by Permitted Encumbrances pursuant to the Credit Agreement.  Upon request by Agent, Grantor will deliver to Agent schedules of all internal and third party information identifying the Mortgaged Properties (such as, for example, lease names and numbers assigned by Grantor or the operator of any Mortgaged Property, well and/or unit and/or property names and numbers assigned by purchasers of Production, and internal identification names and numbers used by Grantor in accounting for revenues, costs, and joint interest transactions attributable to the Mortgaged Properties).