Answer:
Oil and gas
Step-by-step explanation:
If we only focus on natural resources, then we can say oil and gas are commodities profitable enough to justify the formation of settlements due to the need of nearby workforce. Here are some examples:
- In Texas you can find a huge amount of oil wells and that has boosted the cities to grow to satisfy the demand of qualified workforce to extract the oil.
- Natural gas is not different from oil in this sense. Extracting gas requires many types and amounts of profesionals and technicians, which us why creating settlements near the gas zones is a common practice. Riohacha in Colombia has an industrial complex only oriented to gas extraction.