As of July 1, 2022, Oasis Petroleum Inc. was acquired by Whiting Petroleum Corporation, in a reverse merger transaction. Oasis Petroleum Inc., an independent exploration and production company, focuses on the acquisition and development of onshore unconventional oil and natural gas resources in the United States. It engages in the acquisition and development of oil and gas properties. As of December 31, 2021, the company had 492,355 net leasehold acres in the Williston Basin. The company sells its crude oil and natural gas to refiners, marketers, and other purchasers that have access to pipeline and rail facilities. Oasis Petroleum Inc. was founded in 2007 and is headquartered in Houston, Texas.