New activity in the Marcellus Shale of the northeast, the Haynesville of Louisiana, the Fayetteville of Arkansas, and the Barnett of Texas has picked up demand.
Geologists accepting new employment or contracts often sign confidentiality agreements related to their work.
Here is an interesting blog post that might make you think about what you are signing.
If you plan to do any mapping, GPS or GIS work while in China it would be a really good idea to learn all about their mapping laws. Ignorance can land you in jail.