Existing estimates, based on 30 year old data, place it perhaps a three year supply of oil and two years of natural gas at current consumption rates. (treehugger.com)
I know we are at or near peak oil production, but if we can put it in these terms (max 20 years of oil at current consumption rates). (dotearth.blogs.nytimes.com)
Based on current consumption rates, an extra # 140 million will have to be spent on replenishing munitions, he added. (politics.co.uk)