The one thing that international bankers don't want to hear
is that the second Great Depression may be round the corner.
But last week, a group of ultra-conservative Swiss
financiers asked a retired English petroleum geologist
living in Ireland to tell them about the beginning of the
end of the oil age.
They
called Colin Campbell, who helped to found the London-based
Oil Depletion Analysis Centre because he is an industry man
through and through, has no financial agenda and has spent
most of a lifetime on the front line of oil exploration on
three continents. He was chief geologist for Amoco, a
vice-president of Fina, and has worked for BP, Texaco,
Shell, ChevronTexaco and Exxon in a dozen different
countries.
"Don't worry about oil running out; it won't for very many
years," the Oxford PhD told the bankers in a message that he
will repeat to businessmen, academics and investment
analysts at a conference in Edinburgh next week. "The issue
is the long downward slope that opens on the other side of
peak production. Oil and gas dominate our lives, and their
decline will change the world in radical and unpredictable
ways," he says.
Campbell reckons global peak production of conventional oil
- the kind associated with gushing oil wells - is
approaching fast, perhaps even next year. His calculations
are based on historical and present production data,
published reserves and discoveries of companies and
governments, estimates of reserves lodged with the US
Securities and Exchange Commission, speeches by oil chiefs
and a deep knowledge of how the industry works.
"About 944bn barrels of oil has so far been extracted, some
764bn remains extractable in known fields, or reserves, and
a further 142bn of reserves are classed as 'yet-to-find',
meaning what oil is expected to be discovered. If this is
so, then the overall oil peak arrives next year," he says.
If he
is correct, then global oil production can be expected to
decline steadily at about 2-3% a year, the cost of
everything from travel, heating, agriculture, trade, and
anything made of plastic rises. And the scramble to control
oil resources intensifies. As one US analyst said this week:
"Just kiss your lifestyle goodbye."
But
the Campbell analysis is way off the much more optimistic
official figures. The US Geological Survey (USGS) states
that reserves in 2000 (its latest figures) of recoverable
oil were about three trillion barrels and that peak
production will not come for about 30 years. The
International Energy Agency (IEA) believes that oil will
peak between "2013 and 2037" and Saudi Arabia, Kuwait, Iraq
and Iran, four countries with much of the world's known
reserves, report little if any depletion of reserves.
Meanwhile, the oil companies - which do not make public
estimates of their own "peak oil" - say there is no shortage
of oil and gas for the long term. "The world holds enough
proved reserves for 40 years of supply and at least 60 years
of gas supply at current consumption rates," said BP this
week.
Indeed, almost every year for 150 years, the oil industry
has produced more than it did the year before, and
predictions of oil running out or peaking have always been
proved wrong. Today, the industry is producing about 83m
barrels a day, with big new fields in Azerbaijan, Angola,
Algeria, the deep waters of the Gulf of Mexico and elsewhere
soon expected on stream.
But
the business of estimating oil reserves is contentious and
political. According to Campbell, companies seldom report
their true findings for commercial reasons, and governments
- which own 90% of the reserves - often lie. Most official
figures, he says, are grossly unreliable: "Estimating
reserves is a scientific business. There is a range of
uncertainty but it is not impossible to get a good idea of
what a field contains. Reporting [reserves], however, is a
political act."
According to Campbell and other oil industry sources, the
two most widely used estimates of world oil reserves, drawn
up by the Oil and Gas Journal and the BP Statistical Review,
both rely on reserve estimates provided to them by
governments and industry and do not question their accuracy.
Companies, says Campbell, "under-report their new
discoveries to comply with strict US stock exchange rules,
but then revise them upwards over time", partly to boost
their share prices with "good news" results. "I do not think
that I ever told the truth about the size of a prospect.
That was not the game we were in," he says. "As we were
competing for funds with other subsidiaries around the
world, we had to exaggerate."
Most
serious of all, he and other oil depletion analysts and
petroleum geologists, most of whom have been in the industry
for years, accuse the US of using questionable statistical
probability models to calculate global reserves and Opec
countries of drastically revising upwards their reserves in
the 1980s.
"The
estimates for the Opec countries were systematically
exaggerated in the late 1980s to win a greater slice of the
allocation cake. Middle East official reserves jumped 43% in
just three years despite no new major finds," he says.
The
study of "peak oil" - the point at which half the total oil
known to have existed in a field or a country has been
consumed, beyond which extraction goes into irreversible
decline - used to be back-of-the envelope guesswork. It was
not taken seriously by business or governments, mainly
because oil has always been cheap and plentiful.
In
the wake of the Iraq war, the rapid economic rise of China,
global warming and recent record oil prices, the debate has
shifted from "if" there is a global peak to "when".
The
US government knows that conventional oil is running out
fast. According to a report on oil shales and unconventional
oil supplies prepared by the US office of petroleum reserves
last year, "world oil reserves are being depleted three
times as fast as they are being discovered. Oil is being
produced from past discoveries, but the reserves are not
being fully replaced. Remaining oil reserves of individual
oil companies must continue to shrink. The disparity between
increasing production and declining discoveries can only
have one outcome: a practical supply limit will be reached
and future supply to meet conventional oil demand will not
be available."
It
continues: "Although there is no agreement about the date
that world oil production will peak, forecasts presented by
USGS geologist Les Magoon, the Oil and Gas Journal, and
others expect the peak will occur between 2003 and 2020.
What is notable ... is that none extend beyond the year
2020, suggesting that the world may be facing shortfalls
much sooner than expected."
According to Bill Powers, editor of the Canadian Energy
Viewpoint investment journal, there is a growing belief
among geologists who study world oil supply that production
"is soon headed into an irreversible decline ... The US
government does not want to admit the reality of the
situation. Dr Campbell's thesis, and those of others like
him, are becoming the mainstream."
In
the absence of reliable official figures, geologists and
analysts are turning to the grandfather of oil depletion
analysis, M King Hubbert, a Shell geologist who in 1956
showed mathematically that exploitation of any oilfield
follows a predictable "bell curve" trend, which is slow to
take off, rises steeply, flattens and then descends again
steeply. The biggest and easiest exploited oilfields were
always found early in the history of exploration, while
smaller ones were developed as production from the big
fields declined. He accurately predicted that US domestic
oil production would peak around 1970, 40 years after the
period of peak discovery around 1930.
Many
oil analysts now take the "Hubbert peak" model seriously,
and the USGS, national and oil company figures with a large
dose of salt. Similar patterns of peak discovery and
production have been found throughout all the world's main
oilfields. The first North Sea discovery was in 1969,
discoveries peaked in 1973 and the UK passed its production
peak in 1999. The British portion of the basin is now in
serious decline and the Norwegian sector has levelled off.
Other
analysts are also questioning afresh the oil companies'
data. US Wall street energy group Herold last month compared
the stated reserves of the world's leading oil companies
with their quoted discoveries, and production levels. Herold
predicts that the seven largest will all begin seeing
production declines within four years. Deutsche Bank
analysts report that global oil production will peak in
2014.
According to Chris Skrebowski, editor of Petroleum Review, a
monthly magazine published by the Energy Institute in
London, conventional oil reserves are now declining about
4-6% a year worldwide. He says 18 large oil-producing
countries, including Britain, and 32 smaller ones, have
declining production; and he expects Denmark, Malaysia,
Brunei, China, Mexico and India all to reach their peak in
the next few years.
"We
should be worried. Time is short and we are not even at the
point where we admit we have a problem," Skrebowski says.
"Governments are always excessively optimistic. The problem
is that the peak, which I think is 2008, is tomorrow in
planning terms."
On
the other hand, Equatorial Guinea, Sao Tome, Chad and Angola
are are all expected to grow strongly.
What
is agreed is that world oil demand is surging. The
International Energy Agency, which collates national figures
and predicts demand, says developing countries could push
demand up 47% to 121m barrels a day by 2030, and that oil
companies and oil-producing nations must spend about $100bn
a year to develop new supplies to keep pace.
According to the IEA, demand rose faster in 2004 than in any
year since 1976. China's oil consumption, which accounted
for a third of extra global demand last year, grew 17% and
is expected to double over 15 years to more than 10m barrels
a day - half the US's present demand. India's consumption is
expected to rise by nearly 30% in the next five years. If
world demand continues to grow at 2% a year, then almost
160m barrels a day will need to be extracted in 2035, twice
as much as today.
That,
say most geologists is almost inconceivable. According to
industry consultants IHS Energy, 90% of all known reserves
are now in production, suggesting that few major discoveries
remain to be made. Shell says its reserves fell last year
because it only found enough oil to replace 15-25 % of what
the company produced. BP told the US stock exchange that it
replaced only 89% of its production in 2004.
Moreover, oil supply is increasingly limited to a few giant
fields, with 10% of all production coming from just four
fields and 80% from fields discovered before 1970. Even
finding a field the size of Ghawar in Saudi Arabia, by far
the world's largest and said to have another 125bn barrels,
would only meet world demand for about 10 years.
"All
the major discoveries were in the 1960s, since when they
have been declining gradually over time, give or take the
occasional spike and trough," says Campbell. "The whole
world has now been seismically searched and picked over.
Geological knowledge has improved enormously in the past 30
years and it is almost inconceivable now that major fields
remain to be found."
He
accepts there may be a big field or two left in Russia, and
more in Africa, but these would have little bearing on world
supplies. Unconventional deposits like tar sands and shale
may only slow the production decline.
"The
first half of the oil age now closes," says Campbell. "It
lasted 150 years and saw the rapid expansion of industry,
transport, trade, agriculture and financial capital,
allowing the population to expand six-fold. The second half
now dawns, and will be marked by the decline of oil and all
that depends on it, including financial capital."
So
did the Swiss bankers comprehend the seriousness of the
situation when he talked to them? "There is no company on
the stock exchange that doesn't make a tacit assumption
about the availability of energy," says Campbell. "It is
almost impossible for bankers to accept it. It is so out of
their mindset."
Crude alternatives
"Unconventional" petroleum reserves, which are not included
in some totals of reserves, include:
Heavy oils
These
can be pumped just like conventional petroleum except that
they are much thicker, more polluting, and require more
extensive refining. They are found in more than 30
countries, but about 90% of estimated reserves are in the
Orinoco "heavy oil belt" of Venezuela, which has an
estimated 1.2 trillion barrels. About one third of the oil
is potentially recoverable using current technology.
Tar sands
These
are found in sedimentary rocks and must be dug out and
crushed in giant opencast mines. But it takes five to 10
times the energy, area and water to mine, process and
upgrade the tars that it does to process conventional oil.
The Athabasca deposits in Alberta, Canada are the world's
largest resource, with estimated reserves of 1.8 trillion
barrels, of which about 280-300bn barrels may be
recoverable. Production now accounts for about 20% of
Canada's oil supply.
Oil shales
These
are seen as the US government's energy stopgap. They exist
in large quantities in ecologically sensitive parts of
Colorado, Wyoming and Utah at varying depths, but the
industrial process needed to extract the oil demands hot
water, making it much more expensive and less
energy-efficient than conventional oil. The mining operation
is extremely damaging to the environment. Shell, Exxon,
ChevronTexaco and other oil companies are investing billions
of dollars in this expensive oil production method.
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