Texas Amendment to Refinery Purchase and Sale Agreement and Indemnity Agreement is a contract that is used by buyers and sellers who are involved in a refinery purchase and sale transaction in the state of Texas. This contract outlines the terms and conditions of the sale, including the purchase price, payment terms, closing date, and other relevant details. It also includes an indemnity agreement, which is a promise by the buyer to hold the seller harmless from any damages or losses that may arise due to the purchase and sale transaction. There are two main types of Texas Amendment to Refinery Purchase and Sale Agreement and Indemnity Agreement: a Unilateral Agreement, which is an agreement that is signed by one party only, and a Mutual Agreement, which is an agreement that is signed by both parties.