Changes in loading facilities procedures may be possible upon mutual agreement of the Parties. Seller shall provide adequate parking facilities at the Helium Plant to the Buyer based on the Buyer’s Receipt Schedule and taking into account as practically as possible the receipt schedules of Seller’s other buyers. Buyer shall be responsible for empty Buyer’s Units to be transported and delivered to the Delivery Point. At the Delivery Point, when Buyer’s tractor is disconnected from the Unit, the responsibility for, risk of damage to and liability for the empty Buyer’s Unit shall pass to Seller.