As of July 1, 2022, Oasis Petroleum Inc. concluded its independent operations, having been acquired by Whiting Petroleum Corporation via a reverse merger transaction. Before this acquisition, Oasis functioned as an exploration and production firm focused on discovering and developing onshore unconventional oil and natural gas deposits within the United States. Its assets, as reported on December 31, 2021, included a substantial 492,355 net leasehold acres situated in the Williston Basin.