VES Survey International, the world’s leading independent wellbore surveyor for the oil and gas industry, focuses every day o ... n providing our customers with unmatched service, speed, and innovation. From field offices across the United States and throughout the world, we offer dependable delivery of the fastest call-through-completion wellbore survey results in the industry. We achieve this through the extraordinary personal service of our local experienced surveying engineers and the continuous development of proprietary high accuracy wellbore surveying technology. read more