My yard man had a degree in geology. He began doing lawns so he could pay for getting his teaching credentials. He now teaches middle school science.
A friend that I met in the local Gem and Mineral Club has degrees in geology. He works for an independent oil company and has done quite well for himself by finding several very productive wells.
Another friend of my has degrees in geology and has just retired as Professor Emeritus from a local college.
Yet another friend of mine has degrees in geology. He put himself through school as a DJ, but now is a tenured professor using satellite information for geological research.
And other friends of mine have degrees in geology and now work for the state of Texas. One is the radiation inspector for South Texas, another directs the Bureau of Economic Geology, another was the State Archeologist until he retired, and several are professors.
My uncle had degrees in geology. He worked as a geologist for Brown and Root. He at one time also worked for a demolition company, making buildings implode. He also worked for a nuclear power company overseas, and eventually ran his own company turning garbage into material for paving roads.
A long-time family friend worked for the US government as a vulcanologist. He worked in Hawaii for a long time as well as monitored Mount Saint Helens (he predicted the big eruption, was pooh-poohed by his bosses, and was on vacation at the other end of the country when it did blow).
I have additional friends with degrees in geology who do everything from well-logging to selling insurance.
My dad knows a lot of people with degrees in geology because he was a senior vice president of a major oil company. Some are still doing geology per se (analyzing potential oil fields and so on), but many have moved on into management.
Here are some of the career fields open to geologists.