Oil and gas metering or measurement is the phase during the hydrocarbon supply value chain in which exploration and production efforts turn into profits for operators, investors, and other relevant stakeholders. Hydrocarbon metering is carried out using specialized, high-precision equipment to ensure accuracy.

The benefits of implementation of a measurement system for custody transfer is evident from the first day of operation. It ensures maximum reliability of the measured product, reducing the number of losses due to unreliable measurements or lack thereof.

A metering system is an automated system for measuring crude or natural gas comprising several measurement instruments assembled on a steel frame with a flow computer and associated control unit. They are used to determine financial estimates during custody transfer metering. Metering skids usually consist of several flow meters for metering fluid flow with or without a proving system, sampling system, or gas chromatograph for analysis and metering of gaseous hydrocarbons.