Robert F. Heinemann

Berry Petroleum Co. LLC engages in the acquisition, exploration, development, and production of domestic oil and natural gas reserves. The company is headquartered in Bakersfield, CA.

Canvas Energy, Inc. engages in the acquisition, exploitation, exploration and production of onshore oil and natural gas. It focuses on deposits of Stack, Meramec and Osage, Oswego, and Woodford located in Oklahoma and the Texas Panhandle. The company was founded by Mark A. Fischer and Charles A. Fischer in April 1988 and is headquartered in Oklahoma City, OK.

Mobilic Technology Corp. designs, develops, and markets information and entertainment system-on-chip (SoC) solutions. The company's products include JPEG encoder/decoder, image processing engines, multimedia processors suite, and many more. The company was founded in 2003 and is headquartered in Taipei, Taiwan.

Chaparral Energy LLC produces oil and natural gas. It specializes in enhanced oil recovery and has an inventory of carbon dioxide tertiary recovery projects in the Mid-Continent and Permian Basin. The company was founded by Mark A. Fischer and Charles A. Fischer, Jr. in April 1988 and is headquartered in Oklahoma City, OK.

C12 Energy LLC develops carbon sequestration technology. Its primary business involves rehabilitating mature fields through gas injection. The firm's technologies separate emissions streams and inject those emissions into geological formations for storage. It also develops, owns, and operates projects that manage industrial carbon dioxide in subsurface geologic structures for enhanced oil recovery and long-term storage. The company was founded by Charles M. Brankman, Justin Dawe and Kurt Zenz House in 2008 and is headquartered in Berkeley, CA.

EOG Y Resources, Inc. engages in the exploration and production of oil and natural gas. It has drilling fields and satellite offices in Colorado and Wyoming, where it produces coal-bed methane in the Powder River Basin, as well as a pair of pipeline companies. The company was founded by Martin Yates in 1907 and is headquartered in Artesia, NM.

Great Western Operating Co. LLC engages in exploration and production of oil and natural gas. Its operation is located in Denver Julesburg Basin, Colorado. The company was founded in 2005 and is headquartered in Denver, CO.