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.
GulfSlope Energy
OTCMKTS:GSPEGulfSlope Energy, Inc. operates as an independent oil and natural gas exploration company primarily in the Gulf of Mexico federal waters offshore Louisiana, the United States. It has leased one federal outer continental shelf block and has licensed 2.2 million acres of three-dimensional seismic data in its area of concentration. The company was formerly known as Plan A Promotions, Inc. and changed its name to GulfSlope Energy, Inc. in April 2012. GulfSlope Energy, Inc. was incorporated in 2003 and is headquartered in Houston, Texas.
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.
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.