O & G, Inc

Greehey & Co Inc is a privately owned North American independent oil and natural gas exploration and production company based in San Antonio, Texas. The company specializes in finding and exploiting both conventional and unconventional oil and gas reserves located within the United States. With extensive industry knowledge and experience, Greehey & Co is adept at quickly analyzing the merits of various projects. By utilizing in-house capital, the company positions itself as an early mover in play areas, which allows for a lower cost basis for its partners. Generated from the website

MWM Oil & Gas LLC is a company based in San Antonio, TX that specializes in the exploration and production of oil and natural gas resources. With a focus on efficiency and sustainability, MWM Oil & Gas LLC utilizes advanced technologies to extract and process energy resources in a responsible manner. Generated from their business information

Valero Energy Corporation specializes in refining and retailing operations. The company engages in wholesale marketing, transportation activities, and product supply and distribution. Its products include reformulated gasoline, diesel fuel and oxygenates. Valero Energy Corporation also provides conventional gasoline, distillates, jet fuel, asphalt, petrochemicals and lubricants. The company maintains nearly 20 refineries in the United States, Canada and Aruba. It has more than 4,700 retail sites branded as Valero, Diamond Shamrock, Ultramar, Beacon and Total. Valero Energy s company-operated convenience stores sell snacks, candy, beer, cigarettes and coffee. William R. Klesse has been the chief executive officer of Valero Energy for more than one year. He has been with the petroleum company for over 37 years. Klesse earned a BS degree from the University of Dayton, and a MBA from Texas A&M. The company was established in 1955 and is headquartered in San Antonio.