Abstract: A manifold for connecting one or more well service or completion apparatuses to a plurality of hydrocarbon wells comprises a block member which includes a flow bore having an inlet branch and a number of outlet branches, an inlet cross which is connected to the block member over the inlet branch, the inlet cross comprising an outlet bore which is in fluid communication with the inlet branch and a number of inlet bores which are in fluid communication with the outlet bore, a number of valves, each of which is connected to the bock member in fluid communication with a corresponding outlet branch, and a number of outlet crosses, each of which is connected to a corresponding valve. Each outlet cross comprises an inlet passage which is in fluid communication with the valve and plurality of outlet passages which are in fluid communication with the inlet passage.