Gas Distribution System Stocks List Ranked for

	Symbol	Grade	Name	% Change
	NGG	D	National Grid Transco, PLC	2.36
	SREA	F	Sempra Energy 5.750% Junior Subordinated Notes due 2079	1.74

Related Industries: Other Utilities - Diversified

Symbol	Grade	Name	Weight
PID	D	PowerShares Intl Dividend Achievers	3.74
GINX	B	SGI Enhanced Global Income ETF	2.64
PFXF	B	Market Vectors Preferred Securities ex Financials ETF	1.34
IPPP	C	Preferred-Plus ETF	1.17
JHPI	B	John Hancock Preferred Income ETF	1.09

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Date	Stock	Title

Gas Distribution System: A gas distribution system is a network of pipes, valves, and other equipment used to deliver natural gas from a source, such as a gas processing plant, to customers. The system typically includes a main line, which is a large pipe that carries gas from the source to a distribution center, and smaller pipes that branch off the main line to deliver gas to individual customers. The system also includes valves, regulators, and other equipment used to control the flow of gas.