The resistance of fluid to flow. A high viscosity fluid does not flow as easily as a low viscosity fluid.

This glossary of common oil and gas terms and definitions will aid newcomers as well as experienced royalty owners or mineral owners with the terminology used in the Oil and Gas industry. We also have a page of Oil and Gas Abbreviations and Acronyms. These are some of the most commonly used oil and gas terms. If you would like to discuss mineral rights related issues with other landowners visit MineralRightsForum.com.