Common use of Sale and Purchase of the Properties Clause in Contracts

Sale and Purchase of the Properties. Subject to the terms and conditions ----------------------------------- and for the consideration herein set forth, and other good and valuable consideration, the receipt and sufficiency of which are hereby acknowledged, Seller agrees to sell, assign, convey and deliver to Buyer, and Buyer agrees to purchase and acquire from Seller at Closing, but effective as of 8:00 a.m. at the location of each of the Gas Properties on November 1, 2003 (the "Effective Date"), all of the interest of Seller in and to the following properties, other than the Excluded Assets ("Proper-ties"):

Sale and Purchase of the Properties. Subject to the terms and conditions ----------------------------------- and for the consideration herein set forth, and other good and valuable consideration, the receipt and sufficiency of which are hereby acknowledged, Seller agrees to sell, assign, convey and deliver to Buyer, and Buyer agrees to purchase and acquire from Seller at Closing, but effective as of 8:00 7:00 a.m. at the location of each of the Oil and Gas Properties on November July 1, 2003 1998 (the "Effective Date"), all of the interest of Seller in and to the following properties, other than the Excluded Assets ("Proper-tiesProperties"):

Sale and Purchase of the Properties. Subject to the terms and conditions ----------------------------------- and for the consideration herein set forth, and other good and valuable consideration, the receipt and sufficiency of which are hereby acknowledged, Seller agrees to sell, assign, convey and deliver to Buyer, and Buyer agrees to purchase and acquire from Seller at Closing, but effective as of 8:00 7:00 a.m. at the location of each of the Oil and Gas Properties on November May 1, 2003 1997 (the "Effective Date"), all of the interest of Seller in and to the following properties, other than the Excluded Assets ("Proper-tiesProperties"):