Richard L. Sumner

Professional Geologists of Indiana engages in licensing professional geologists. The company was founded in 1923 and is headquartered in Indianapolis, IN.

The Group's principal activity is to explore, acquire, develop, produce and market natural gas and crude oil. Its project areas are focused in the Antrim shale of Michigan and New Albany shale of Southern Indiana and Western Kentucky. On May 11, 2006, the name of Cadence Resources Corporation was changed to Aurora Oil & Gas Corporation.

Shell Oil Co. manufactures petrochemicals and distributes gas and oil products. The company was founded in 1912 and is headquartered in Houston, TX.

Part of Chevron Corp., Union Oil Company of California, Inc. is a company that explores and markets petrol. The company is based in El Segundo, CA. Union Oil Company of California was acquired by Hilcorp Energy Co. from Chevron Corp. on January 01, 2012.

Core Minerals Operating Co., Inc. provides oil and gas exploration and production services. Its project management including land leasing, surface use, drilling, marketing, gathering, and transportation and Participation in oil and gas exploration and development projects with a focus on horizontal well development programs. The company was founded in 2006 and is headquartered in Evansville, IN.