The line graph compares global energy consumption from five different sources – oil, coal, natural gas, hydro, and other renewables – between 1965 and 2013, measured in billion metric tons of oil equivalent.
Overall, oil and coal were the dominant energy sources throughout the period, while hydro and other renewables contributed the least. All sources showed upward trends, although growth rates varied significantly.
At the beginning of the period, oil was the most consumed fuel at about 1.2 billion tons, followed by natural gas and coal at just over 0.5. Oil usage rose steadily and peaked at approximately 4 billion tons by 2013, maintaining its leading position. Coal consumption also increased, experiencing slight fluctuations in the mid years, but eventually reached nearly 3.8 billion tons.
Natural gas showed consistent growth, rising to around 2.8 billion tons by the end. In contrast, hydro energy climbed only slightly from 0.2 to just above 0.3. Other renewables started close to zero and grew gradually, reaching just under 0.5 billion tons in 2013.