Across
- 4. A storm with winds from 74 mph and up
- 6. A fossil fuel made from primarily methane
- 8. A town that boomed because of rapid prosperity
- 10. When people move to urban areas
- 11. A storm with winds up to 73 mph
- 13. The production of oil/natural gas
- 14. A worker on an oil rig
Down
- 1. A framework over a drilled hole used to haul equipment
- 2. To purify a substance by removing impurities
- 3. An event caused by the natural forces which result in loss of life
- 5. An economy that has a cycle of highs and lows
- 7. Non renewable remains of organisms broken down
- 9. A type of refined oil used as fuel for engines
- 12. Liquid fossil fuel made from remains of ancient organisms