How to get commodity data from yahoo finance?

I am working on a small widget for my projects which basically looks like this. Futures for Yahoo Finance

How can I get the data for Natural Gas, Gasoline, Crude Oil, Heating Oil and their Change?. I want to retrieve those data via json maybe and create a box widget or a ticker. The Image attached is what I am trying to make. Thank you.

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PS: I tried CLJ15.NYM Symbol for Crude Oil using yahoo.finance.quotes table in the YQL Console, but it did not work.

Solution

You can type the symbol in the same way you would type in a stock. Getting data from Yahoo Finance provides you with a good example of how to use stock symbols with yql.

For those exact 4, it would look like this:

select * from yahoo.finance.quote where symbol in ("CLK15.NYM", "HOK15.NYM", "NGK15.NYM", "RBK15.NYM")

Note: you can use yahoo.finance.quote or yahoo.finance.quotes