عنوان مقاله [English]
It is generally accepted that the content of the contracts reflects the goals of contractor parties and with relying on contractual rules and mechanisms be performed accurately and completely to ensure the parties that their efforts for concluding the contract shall result in their mutual intention and interest. One of the most important contractual rules is co-operation rule that if be included in the contract might encourage or prevent the parties from doing some activities to make sure that the concluded contract shall work out. The problem might arise when this rule is not included or implied in the contract and even such unexpected events have happened that make it difficult for both parties to be bond to the concluded contract. Under these circumstances this essay by analyzing this rule under the important international documents including the CISG, PECL, DCFR, Islamic Fiqh and the Iranian legal system, has suggested the solutions such as contract management methods to maintain the oil & gas contacts performable and resolve the contractual conflicts.