Answer:duopoly joint operating agreement (JOA)
Explanation:
A joint operating agreement, refers to an agreement that occurs when two or more mineral operations decided to work together in sharing their resources and expertise in the industry. The contract is a legal guidance in their joint venture whilst the companies still keep their unshared identity.
JOAs are good at guiding both parties in terms of how they will go about exploration and production and how they will split the revenue.