An apparatus is utilized for obtaining flow measurements from an individual oil and gas well. The apparatus utilizes pipe segments rather than vessels to separate the fluid components into a gas phase, a water phase, and an oil phase. Separation of the flow stream into the different phases allows the measurement of a particular phase. Because the oil stream may continue to contain a small amount of water, a water cut meter may be employed to determine the water content in the oil stream. The apparatus may be configured as a skid package to facilitate transportation and installation of the unit.