Gas Stocks

Stocks of natural gas? What?
Enthusiasm is natural gas, and I want to get into this market. But I am not familiar with all Companies involved in this field. The only one I did a little research on CHNG is. This is a company that works with natural gas China, which has a huge reserve of gas natural. Is this a good buy? And other companies seeking high performance once the natural gas is removed?
Please take a look at EnCana (ECA). Here Yahoo is your profile! Finance: EnCana Corporation is engaged in exploration, production and marketing of natural gas, crude oil and liquid natural gas. The company has interests in various Canadian property areas, mainly comprising Suffield, Brooks North, Langevin, Drumheller, Pelican Lake, and Weyburn located in Alberta and Saskatchewan, and the Sierra Grande, Cutbank Cimarron Ridge, Clearwater, and Sexsmith / Hythe / Saddle Hills located in British Columbia and Alberta. Am accordance with the advice to stay away from rose petals.
Natural Gas Stocks – Bloomberg