Oil Fields

Hello Everyone,

I was wondering about a few questions on the big boom in the Oil Fields out in Texas and North Dakota.

1) Why is the demand so high, i mean why doesn't everyone jump on those opportunities.

2) What does the work consist of?

3) How dangerous is the work really? (I hear every now and them about guys talking how its one of the most dangerous jobs to have)

Any input outside of my questions would be much appreciated on this field, I'm a newbe and am thinking about giving it a try.

Thanks