The American fertility rate is around the replacement rate of 2.1, compared with 1.4 for Germany and Italy, where populations are in decline.
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But Phillip Watts, head of exploration and production, boldly reported a three-year average replacement rate of 102%.
Africa has even higher TFRs, with many of its countries between 4 and 7, far higher than the replacement rate of 2.1.
The last time it was above the replacement rate of two was in 1976.
Western European countries have low fertility rates, below the replacement rate of 2.1.
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Britain's Pensions Commission has used a net replacement rate of 80% for workers on average incomes as a rough guide to whether they will have enough to live on in retirement.
The pattern of swift, uninterrupted decline is now taken as the norm: the UN uses it to project a worldwide convergence towards the replacement rate of fertility (2.1, the rate at which a population stabilises in the long term).
People who worked for the state, in state-owned companies or in state-approved collectives, enjoyed cradle-to-grave benefits ranging from housing, education and health care to a generous pension scheme, with an official retirement age of 55 for men and 50 for women for manual workers (but five years more for white-collar workers) and a replacement rate of about 80% of final salary.
Although America benefits greatly from immigration, its fertility rate has actually consistently been sub-replacement for almost all of the past 20 years.
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Italians and Irish have been emigrating for centuries which is part of the reason why the birth rate in Italy is less than the replacement rate because who wants to stay in a place where there is little opportunity and there are no jobs?
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Manufacturing firms recorded both redundancies and the non-replacement of voluntary leavers over the month, although the overall rate of job losses was said to be "marginal".
Singapore's total fertility rate of 1.2, which represents the number of children that would be born to a woman if she were to live to the end of her child-bearing years, has been below the population replacement rate for more than three decades.
Larry Summers, Barack Obama's main economic adviser, has noted that current annualised vehicle sales of about 9m are well below the 14m necessary for replacement and rising population, while annualised housing starts are about a quarter of the rate needed to support the forming of new households.
This could be achieved through a cap-and-trade system by issuing each adult with 1.05 of a birth permit (ie, 2.1 permits per couple to achieve the replacement fertility rate) and allowing such permits to be tradable.
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