This chapter examines traditional and non-traditional energy production trends in the UK, Poland, and India. These countries are in various stages of energy transition. The UK is a developed country committed to achieving net-zero emissions by 2050 with a strong focus on the transition to renewable energyRenewable energy. Poland’s economy is in transition; it was once a major coal consumer, but is now shifting to renewable energy. Owing to its large population, rising consumer demand, and industrial growth, India still has a long way to go in transitioning to renewable energy. On the basis of the recent budget, India plans to sign agreements with US firms to adopt renewable energyRenewable energy from nuclear energy. Fossil fuelsFossil fuels are nonrenewable resources; it takes long years to replenish oil, coal, and natural gas. Resource extraction should be optimized to maintain reserves in the future. This chapter examines the applicability of the Hotelling ruleHotelling rule in the extraction of resources, such as those in the mining industry. The energy trends of the three selected countries during 2000–2022 are further discussed. The trend indicates that UK, is progressing rapidly in their transition and are investing heavily in the adoption of renewable energyRenewable energy production. Transition economies, such as Poland in Europe, still rely on pipelines from Russia for natural gas, as well as other energy commodities, to meet their industrial and residential energy needs. India may greatly benefit from the adoption of renewable energy. The externalities of production have a significant detrimental effect on the environment and air quality in India.