For and in consideration of the mutual benefits to be derived here from, and subject to the terms and conditions hereinafter set forth, Seller shall sell, transfer, convey and deliver to Buyer at closing, and Buyer shall purchase and acquire at closing an undivided 90% of all right, title, interest and estate of Seller in, to and under the oil and gas leases set forth in Exhibit “A” attached hereto and incorporated herein by reference and other leasehold and mineral interests on the lands covered thereby together with an undivided 95% of all: oil and gas wells thereon, oil and gas equipment and fixtures thereon or used in the operation thereof, equipment and other personal property used in connection with oil and gas operations upon the above described oil and gas leases, (including but not limited to the items described on Exhibit “B” attached hereto and incorporated herein by reference and pipe, pumps, tanks, motors, pump jacks, gathering lines, electric lines, and associated materials and related parts and supplies), easements, permits, rights of way, surface leases, servitudes and agreements insofar as they pertain to the Leases or are related thereto, tenements, hereditaments and appurtenances to said leases, drilling data, electric logs, lease files, land files, well files, division order files, geophysical data/reports, maps, regulatory files, title opinions and records drillers logs, reserve reports, appraisals, evaluations, studies, or any other documents or files prepared for or in any way relating to said oil and gas leases (collectively, the “Leases”).