A useful link https://www.straitstimes.com/business/companies-markets/oil-soars-after-trump-nixes-iran-nuclear-deal-us-stocks-rally relating to commodity prices….
Edexcel spec reference 4.3.2 Impact of economic factors in different countries:

  • primary product dependency
  • volatility of commodity prices

AQA spec reference How changes in world commodity prices affect domestic inflation.
OCR spec reference P8 Evaluate, with the aid of a diagram, the usefulness of demand and supply in analysing markets, such as commodities