Nde Associates Inc, 515 Tristar Dr, Webster, TX 77598, US

H. J. Gruy and Associates is an international oil and natural gas consulting group that provides expertise in all facets of the petroleum industry. It offers visionary petroleum engineering and consulting services that lead its clients through economic cycles of the oil and gas industry. As a result, colleagues, clients and throughout the world financial institutions respect the firm. H.J. Gruy offers complete petroleum engineering, geological and geophysical expertise with an emphasis on reserve determination and economic forecasting. The company's staff has extensive experience throughout the world and combines a focused range of technical, business and operational backgrounds. Its engineers have experience in applying reservoir and field analysis techniques, correlating well logs, picking fault cuts and interpreting throughout the world activities in exploration, exploitation and equity-determination projects in all major exploration and producing basins. H.J. Gruy and Associates has an office in Houston.