Chaparral Energy
NYSE:CHAPChaparral Energy, Inc. engages in the acquisition, exploration, development, production, and operation of onshore oil and natural gas properties primarily in Oklahoma, the United States. The company sells crude oil, natural gas, and natural gas liquids primarily to refineries and gas processing plant. The company was founded in 1988 and is headquartered in Oklahoma City, Oklahoma.
Carbon Energy
OTCMKTS:CRBOCarbon Energy Corporation, an independent oil and natural gas company, engages in the acquisition, exploration, development, and production of oil, natural gas, and natural gas liquids properties in the United States. It focuses on conventional and unconventional reservoirs, including shale, tight sand, and coalbed methane located in the Appalachian, Illinois, and Ventura Basins. It owns working interests and royalty interests in wells located in California, Illinois, Indiana, Kentucky, Ohio, Tennessee, Virginia, and West Virginia, as well as had leasehold positions. The company was formerly known as Carbon Natural Gas Company and changed its name to Carbon Energy Corporation in June 2018. Carbon Energy Corporation was founded in 2007 and is based in Denver, Colorado.
InPlay Oil
OTCMKTS:IPOOFInPlay Oil Corp. engages in the acquisition, exploration, development, and production of petroleum and natural gas properties in Canada. The company produces and sells crude oil, natural gas, and natural gas liquids. It focuses on light oil asset base located in West Central, Alberta. InPlay Oil Corp. is headquartered in Calgary, Canada.
Lonestar Resources US
NASDAQ:LONELonestar Resources US Inc., an independent oil and gas company, engages in the acquisition, development, exploration, and production of unconventional oil, natural gas liquids, and natural gas properties in the United States. It primarily focuses on Eagle Ford Shale properties that cover an area of 52,861 net acres in Texas counties. The company was incorporated in 2015 and is headquartered in Fort Worth, Texas.
Ultra Petroleum
NASDAQ:UPLUltra Petroleum Corp., an independent oil and gas company, engages in the acquisition, exploration, development, operation, and production of oil and natural gas properties. Its principal business activities are developing its natural gas reserves in the Green River Basin of southwest Wyomingthe Pinedale and Jonah fields. As of December 31, 2018, the company owned interests in approximately 114,000 gross acres in Wyoming. The company was founded in 1979 and is headquartered in Englewood, Colorado.