Global Shale Oil and Gas Estimates Expand

• The Department of Energy's revised shale resource estimates shed new light on the global extent of shale gas and especially shale oil potential.
• While in the US shale gas preceded large-scale shale oil development, other countries may find fewer obstacles for the latter, and an eager market.

Recently revised estimates of global shale oil and gas resources from the Energy Information Administration (EIA) of the US Department of Energy represent a significant increase over the EIA's 2011 estimates.  Technically recoverable shale oil (tight oil) grew more than tenfold, due to the inclusion of formations outside the US, while estimated global shale gas resources rose by 10%. With these revisions, shale formations now constitute 10% of global crude oil resources and nearly a third of global natural gas resources, although the actual impact of these resources on production and markets is still likely to vary greatly from region to region and country to country.

This year's report reflects a greater focus on tight oil, incorporating insights from the significant development of US tight oil resources that has occurred since the previous report was published. Tight oil development is largely responsible for the 19% increase in US crude oil production from 2010 to 2012.  The smaller adjustment to shale gas is the net result of downward revisions for some countries assessed in 2011, such as Poland and Norway, together with the inclusion of resources in additional shale formations and countries, including Russia, Indonesia and Thailand.

The EIA and the consulting firm that prepared the report were careful to differentiate the technically recoverable resources (TRRs) identified in this data from the more restrictive categories of economically recoverable resources and proved reserves. In other words, these figures represent the quantities of oil and gas that could be recovered if prices justified development and infrastructure was available to carry them to market, not the amounts that producers currently plan to develop.  At the same time, these estimates constitute only a small fraction--at little as 5-25%--of the oil and gas thought to be present in the assessed shale deposits.  Further improvements in technology could substantially increase future TRRs. 

It's interesting to note that although the US leads the world in production of both tight oil and shale gas, it ranks second and fourth, respectively, in global resources of these fuels.  The report also indicates that estimated US tight oil resources of 58 billion barrels (bbl) are more than double current proved oil reserves, which represent just under 7 years of current production.  That's significant, because a sizable fraction of the 139 billion bbls of US conventional unproved TRR--non-shale crude oil not currently included in proved reserves--sits in onshore and offshore areas currently off-limits to drilling. So shale provides a pathway for US oil production to sustain higher output than in the recent past, without having to overcome barriers such as those impeding development offshore California or in the Arctic National Wildlife Refuge. 

Or consider Russia, for which the report cites proved reserves equivalent to 21 years of production and slightly exceeding tight oil TRRs.  Russia possesses many of the factors conducive to shale development, including a large drilling fleet and an oil industry accustomed to drilling large numbers of wells, along with oil-transportation infrastructure. It remains to be seen whether Rosneft and other producers will choose to develop the Bazhenov shale and other deposits rapidly, to increase total output and exports, or more gradually, to offset declines in mature fields and maintain current production rates.

The EIA also reported 32 billion bbls of tight oil TRR in China.  Conventional reserves are comparable to those of the US, supporting current production less than half America's.  Without tight oil, China's economic expansion and the rapid growth of its vehicle fleet put it on track to displace the US as the world's largest oil importer within a few years.  China-based companies are seeking oil in Africa, South America and North America, so it's hard to envision them leaving their own shale resources undeveloped. 

The situation is more complicated for shale-rich OPEC members like Libya and Venezuela.  For example, aside from its current political instability, Libya has nearly 90 years of conventional oil reserves at its current OPEC quota of around 1.5 million bbl/day, before considering the 26 billion bbls of tight oil identified by the EIA.

On balance, the latest EIA shale resource assessment presents a wider and more realistic view of shale outside the US than in 2011. That includes tempering some of the previous report's enthusiasm for shale gas prospects in places like Poland, where few wells had been drilled until recently. The new element is the report's portrayal of the tight oil resource base as broad and deep, centered mainly on countries likely to be motivated to develop it. The shale gas revolution may be slow to spread globally, due to much-discussed differences in the conditions for development, compared to those in the US.  By contrast the development of shale oil, or tight oil, faces fewer obstacles and an eager market.

A slightly different version of this posting was previously published on the website of Pacific Energy Development Corporation.

Exports Raise the Bar for US Strategic Petroleum Releases

I've seen a number of Tweets suggesting that the US will release oil from its Strategic Petroleum Reserve (SPR) sometime in the next month or two, perhaps in tandem with other member countries of the International Energy Agency.  Although circumstances might provide several possible rationales for such a release, including the implementation of tougher sanctions on Iran's oil sector and the possibility that Hurricane Isaac will disrupt some production in the Gulf Coast, it's hard to avoid a political interpretation, as well.  As we head into a close Presidential election, gas prices are rising again, and that's never good for an incumbent.  Selling oil from the SPR is one of the few levers available that might affect short-term energy prices.  However, much has changed since the Clinton administration released 30 million barrels (via exchange) in the lead-up to the 2000 election.  In particular, the country's switch from net importer to net exporter of petroleum products implies that a release in response to events other than a physical disruption in oil supplies could result in some of the benefit of such a release being exported, as well.

When it comes to uses of the SPR, I'm a purist, probably because I can recall sitting in gas lines and participating involuntarily in the bizarre "odd-even" rationing-by-license-plate scheme introduced during the oil crisis following the Iranian Revolution.  The SPR was designed to provide a backstop for our vital energy supplies in a true physical emergency, not as a tool for price manipulation.  I've also suggested for some time that the SPR is overdue for a comprehensive reassessment of its structure.  Our energy situation has changed significantly since the mid-1970s, when the present SPR was established, and we are in the midst of the biggest changes in US energy supply and demand patterns in decades.  We ought to invest the time and money required to bring this institution into the 21st century.  Earlier this year, I also suggested an alternative mechanism for leveraging SPR inventories without depleting them. These are tasks for after the election, whoever wins.  For now, we have what we have, and we should think carefully about the implications of using it in situations less compelling than a war in the Persian Gulf or an unanticipated disruption in North American or global supplies.

One of the changes that must be taken into account is our recent shift in refined product exports, about which I've written previously.  US refineries are capitalizing on the expansion of domestic oil production in a period of weak US demand to continue to operate at high utilization rates and export the resulting surplus output to growing economies in Latin America and elsewhere.  This is generally a good thing, because it helps preserve capacity that might otherwise no longer be available when our own economy eventually resumes healthier growth. It also sustains employment we would sorely miss in a terrible job market.  Furthermore, we have benefited greatly in reliability and flexibility from participating on both sides of the global market in refined products. Still, although I view our petroleum product exports as generally positive--just as I do Boeing's exports of jetliners--I wouldn't advocate using petroleum stockpiles purchased with tax dollars to drive down oil prices to give these refiners an even bigger export advantage.  Yet because of its temporary nature, in contrast to new pipelines or new production, that's exactly where at least some of the benefit of SPR oil released in the absence of a serious supply crisis would go now. 

That doesn't mean I regard rising oil or gasoline prices as harmless to the economy. Consumers are facing the highest pump prices heading into Labor Day weekend since 2008, and that could have a ripple effect throughout the economy.  But even if one ignores the longstanding bi-partisan principle that the SPR is intended only as a crisis-management tool, its effectiveness at moderating oil-price volatility is limited.  Last year's coordinated SPR release, prompted by the Libyan revolution, had little persistent effect on either oil or gasoline prices. A release now is likely to be no more effective when US refineries are already running above 90% utilization and the current 4-week averages show 3.6% of US gasoline production and 23% of diesel output being exported. None of these statistics suggest refiners are experiencing difficulties in obtaining feedstocks, other than on price.  Putting SPR oil into such a market might boost refiners' margins for a while, but it's doubtful it would do much for the product prices that matter to consumers. 

There are sharp differences between President Obama and Governor Romney, not least on energy policy. We're sure to hear more about energy from both campaigns in the weeks ahead, and I plan to analyze their positions closer to election day.  However, one factor this election doesn't need is a release of oil from the SPR that appears to be aimed at dampening gasoline prices that often decline after Labor Day without intervention, rather than being justified by a tangible threat to US oil supplies, and that fails to take into account the added complexity of net product exports. That wouldn't serve the interests of voters, taxpayers or consumers, and it would come at the expense of a little bit of our collective energy security. 

Why Haven't Gas Prices Fallen More?

With the US economy stuck in the doldrums, weakening the demand for oil and its products, and with the fall of at least portions of Tripoli foreshadowing the eventual return of Libyan oil exports to the market, it must seem puzzling that US gasoline prices haven't dropped farther in the last few weeks. As of Monday, the national average price for unleaded regular stood at $3.58 per gallon, only 3% lower than a month ago, when crude oil was just shy of $100 per barrel, compared to around $84 today. On Monday's evening news, CBS ran a segment attempting to explain this apparent disconnect. Unfortunately, they over-simplified the main explanation with a graphic showing cheaper domestic crude oil mixing with higher-priced imported oil. The "A" answer to this question is simpler but not well-understood, even though its elements have been fairly widely reported: Americans are simply looking at the wrong crude oil price, out of long habit. When you compare current gasoline prices and more representative crude oil prices, there isn't much of a disconnect about which to grumble.

The source of this confusion is the price of West Texas Intermediate crude oil (WTI), which for three decades has been the most watched and widely traded oil price in the world, and the basis of what most people mean when they talk about the price of "oil." In fact, there are numerous distinct grades of oil, each with its own price reflecting quality, location and availability. However, until recently most of these prices were based on the price of WTI, plus or minus a relatively narrow band of premiums or discounts, so using WTI as a barometer of all oil prices didn't cause much confusion or inaccuracy. The emergence of a pronounced and lengthy supply bottleneck at the Cushing, OK delivery location for the WTI futures contract has exploded this convenient set of relationships and assumptions.

Because more oil has been going into tankage at Cushing than was leaving those tanks over the last year or so, the price of WTI--itself a category, rather than a single stream of oil--has become massively depressed relative other types of crude oil, not just imported oil but also oil in other locations in the US that aren't affected by the bottleneck. Consider some important examples. While oil produced in Kansas, New Mexico and Oklahoma is all cheaper due to the Cushing effect, Louisiana Light Sweet, which historically traded within a dollar of WTI, is now worth nearly $20/bbl more, putting it much closer to the price of UK Brent crude--the best current gauge of global oil prices--than to WTI. Meanwhile, Bloomberg reports Alaskan North Slope crude (ANS) for delivery on the West Coast at nearly $107/bbl, or $24 over WTI. That's surprising, considering that ANS is heavier and higher in sulfur than WTI, and thus requires more processing. Just as remarkably, California heavy crude at Midway-Sunset is quoted at more than $10/bbl above WTI, when based on history and quality I would expect to see a discount of at least that magnitude. In other words, for now at least, the price of WTI is simply no longer representative of the crude that many US refineries are processing, from either foreign or domestic sources.

When you compare the wholesale price of gasoline from US refineries near the East, West and Gulf coasts to the cost of their crude inputs at around $100 or more, the difference of $15-17/bbl isn't historically unusual. Meanwhile, refineries in the middle of the country have recently been experiencing much stronger margins. This disparity is evident in the second quarter earnings reported by various US refining companies. East coast refiner Sunoco, which hasn't benefited much from cheap WTI, reported a net loss for the quarter, while Valero, with a bigger and more geographically dispersed refining system that includes facilities processing large quantities of WTI-related crude, saw refining segment earnings increase by 39% compared to the second quarter of 2010. The Cushing effect was even more pronounced for the recently merged HollyFrontier Corp., which apparently runs little crude that isn't priced near WTI and saw second-quarter net income almost triple versus 2Q2010. Even after that extra profit margin, gas prices in Tulsa, OK are currently as low as $3.30/gal., or about 15 cents per gallon less than the national average after adjusting for differences in state gas taxes.

Gasoline prices are determined by more than just crude oil prices, though in the long run the two must move together, because the latter represents the largest component of the cost of the former. At least until the bottleneck in Cushing is resolved by new pipeline capacity to the Gulf Coast, one option for which was just canceled, we will need to look beyond our old reliable WTI price indicator in order to compare gasoline and crude prices on a representative basis. I've been paying a lot more attention to the Brent market, and the Wall St. Journal still publishes daily prices for Louisiana Light Sweet and ANS. When and if those indices drop significantly, then it will be time to start looking for a commensurate drop in retail gasoline prices at the pump.

Energy Crisis Prices Persist

Watching oil prices is a hard habit to break, once formed. They're always moving up and down, sometimes for obvious reasons and sometimes not. It has probably escaped most observers' notice that the magnitude of this year's price moves has exceeded the total nominal price of oil that prevailed not many years ago, yet without the sort of apocalyptic events that one might expect such volatility would require. Perhaps that's because we seem to be stuck in the middle of an ongoing, slow-boil oil crisis from which the financial crisis and the demand contraction that accompanied the global recession only provided a brief respite. In fact, when you glance at the oil price trend in real dollars over the last 40 years, it's apparent that prices are back at the level associated with the peak of the oil crisis of the late 1970s and early 1980s:


One reason I've been paying extra attention to oil prices lately is that I've been observing the impact of the coordinated release from the US Strategic Petroleum Reserve (SPR) and strategic reserves of other members of the International Energy Agency. So far, my initial assessment that it would have little lasting effect seems to have been validated, though I'll reserve judgment until the oil is actually delivered during August, when we might see the market respond to the increase in commercial oil inventories that should result. Robert Rapier had an excellent posting yesterday on the folly of this decision. My view is, if anything, less flattering. Not only was this choice unwise, but it also appears to have been ineffective, which in the current economic climate is an even more damning assessment.

The modest response to this move tells us something about the fundamentals of the market. In the past, an SPR release on this scale would have crushed prices--not just for a few days, but for months at least. Consider the release that accompanied the start of the first Gulf War in 1991. Only about half of the nearly 34 million bbls authorized was eventually sold, but the price of oil dropped by 33% overnight and took 13 years to recover to the peak it had reached during the lead-up to Desert Storm. By comparison, the announced release of 30 million bbls from the US SPR--the sale of which was fully-subscribed--and another 30 million bbls from other IEA members managed to depress the price of oil by only around 5% for a week or so. As of this morning Brent crude, the global marker, is $4/bbl higher than it was on June 22nd. And as of this Monday's survey, the average pump price of unleaded regular in the US was also higher than before the President announced the release.

The market's tepid reaction to the SPR release suggests that oil prices have been driven up by more than just speculators. Speculation may be playing a role, but it's more like the head on a glass of beer. Beneath that froth lies the robust demand growth in the developing world, which has pushed global oil consumption to a record level of 89 million bbl/day this year. On the supply side, some point to incipient Peak Oil, but characterizing the crisis we're in doesn't require a grand theory. In addition to the curtailment of production from places like Libya and Yemen, and OPEC's desire to keep a lid on output to preserve their revenues, there's a fundamental mismatch between the companies that have the capital and the desire to invest in new production, and the willingness of some governments to grant access to the resources, whether in the Middle East or the US. All of this is compounded by the inherent time lags in resource development, which can range from 5-10 years, depending on the technology and permits required.

As different as the causes and symptoms of this crisis are from those of the 1970s, the broad outline of solutions remains quite similar: Reduce demand, increase supplies, and diversify our sources of energy. We have more and better options than in 1979, but still no miracle cures.

Are Strategic Inventories Adequate to Handle Another Oil Crisis?

In a thought-provoking op-ed, Michael Levi of the Council on Foreign Relations has provided a very timely reminder of the role that the strategic petroleum reserves of the US and other nations would play if the turmoil in North Africa and the Middle East spawned another oil crisis. Neither additional drilling nor an accelerated effort on renewable energy would make any near-term difference if oil exports from the Middle East were disrupted. Both strategies are important for our future needs, but the only two tools we have for dealing with an immediate oil crisis are the Strategic Petroleum Reserve (SPR) and old-fashioned conservation. Unfortunately, we've wasted the last couple of years of relative oil-market stability that could have been spent bringing the SPR into the 21st century.

The US government currently has 726 million barrels of oil stored in underground caverns around the Gulf Coast, for use in emergencies. At that level, the SPR is essentially full. The stored oil notionally equates to around 80 days of supply at our current rate of net crude oil imports, though in practice it would provide 165 days of drawdown at the SPR's maximum pumping rate of 4.4 million barrels per day. That is in addition to commercial supplies of crude oil and gasoline and other petroleum products, which currently stand at the equivalent of 24 and 28 days, respectively. However, commercial stocks aren't much of a backstop, because the difference between current levels and those at which the system would start to run out in places amounts to less than a week of normal consumption.

We needn't worry about relying on the SPR if exports from Libya dry up. As I noted in Tuesday's posting, OPEC has more than enough spare capacity to make up such a shortfall, although it's of different quality and might result in some tightness in global diesel markets. But if the current unrest spread and threatened exports from the big producers on the Arabian peninsula, the only thing standing between consumers and much higher oil and product prices would be the SPR and its counterparts in other consuming countries. With combined inventories of at least 1.6 billion barrels, these reserves are in good shape to respond to a drop in exports of a few million barrels per day for several months, though not necessarily a sustained curtailment or a much larger one. And any use of these reserves should be coordinated among consuming nations, as Mr. Levi pointed out in his op-ed.

This all sounds good in principle, and I have no doubt that even the announcement of the intent of the US and others to draw promptly on these stocks if the situation deteriorates further would do a lot to calm markets. At the same time, it's important to understand how much the world has changed since the SPR was first planned and implemented, as a result of the first oil crisis in 1973-74. As I commented three years ago:

"In addition to importing much larger volumes of crude oil, our refinery capacity hasn't kept pace with demand, resulting in steadily growing imports of gasoline and gasoline blending components. And in the interim, oil production in Alaska and California has fallen into deep decline, requiring crude and product imports into a maxed-out West Coast refining system.

So instead of a strategic reserve designed to provide a back-up supply of crude oil to Gulf Coast and Mid-continent refineries serving the entire US east of the Rockies, our needs have expanded to encompass oil and refined product imports on all three coasts. These altered circumstances suggest the need for a more diverse and dispersed SPR, perhaps modeled along the lines of the federal Northeast Heating Oil Reserve. Nor do I believe that the only practical model of such a reserve entails government ownership and custody of the hydrocarbons in question. Other countries achieve the same end with a requirement for oil companies to maintain mandatory minimum inventory levels at no direct cost to taxpayers."

That's as relevant today as when I wrote it, with the addition that the SPR's potential effectiveness has been further affected by the buildup of crude in the Mid-continent as a result of increased output from Canadian oil sands projects and the rapidly growing output of the Bakken Shale. This is one of the main reasons why West Texas Intermediate is trading at roughly $100 this morning, while UK Brent crude, which is normally within $2 of WTI, has spiked over $118. I also can't resist pointing out that the market is hitting us in the face with a two-by-four concerning the potential energy security value of US natural gas, which is still trading at an oil-equivalent price under $27 per barrel for all of 2011, despite the events in the Middle East.

I don't blame the last two administrations or Congress for not having made SPR reform a higher priority in the last three years. They had a few other things on their plate. However, even if the current crisis in Libya and the Middle East resolves itself quickly and without further impact on world oil supplies, it provides another unwelcome reminder that we live in a world in which the President and other world leaders might need to call on our strategic oil inventories on very short notice to prevent a catastrophic breakdown of the economy. In that context, redesigning our 1970s-vintage SPR to be more effective in a greatly altered landscape ought to rise to a similar priority as addressing other urgent concerns such as the deficit.

Libya's Ripples for Energy Markets

The unrest that began in Tunisia and Egypt has now destabilized a country that exports important quantities of petroleum, and the oil market is reacting in earnest. With Libya in violent turmoil, UK Brent crude traded above $108 per barrel today, and even West Texas Intermediate (WTI), which has been massively discounted due to excessive inventory at its Cushing, OK delivery point, hit $98 in early trading before falling back to the mid-$90s. Unless events in Libya resolve quickly and positively, oil's price moves will shortly translate into higher gasoline prices. As I considered these events over breakfast, it also struck me that GM and Nissan could turn out to be very lucky indeed in launching their electric vehicles now, instead of a year or two ago when gas prices were lower and less volatile.

The media commentary I've seen so far concerning Libya's oil production has missed some key details that explain why a disruption of exports that in theory can be covered by OPEC's ample spare capacity--currently at a multiple of Libya's output--could be disproportionately large. Instead of focusing on Libya having Africa's largest oil reserves--a fact that is important for the long run but essentially irrelevant in the current situation--what matters is production and exports, and especially the location and quality of the latter. Libya produces around 1.7 million bbl/day of crude oil and exports much of that, due to its small domestic market. As oil companies evacuate personnel, that output will drop, and exports from Libya's ports are at risk of disruption by the chaos unfolding there. The majority of those exports stay in the Mediterranean, where they are key inputs for Italian, French and Spanish refiners. Very little of it comes to the US, for which Libyan oil made up less than 1% of our imports in 2009. So any effect on US markets will be indirect, but no less dramatic for that.

On the surface, OPEC is more than capable of making up for the loss of a bit over 1 million bbl/day from the market, if it wished. However, most of the cartel's roughly 5 million bbl/day spare capacity is on the Arabian peninsula--near another focus of instability in Bahrain, which is no longer an oil exporter. Nor is most of OPEC's remaining capacity of a quality comparable to the typically light, sweet crude types that constitute most of Libya's output. These crudes are well-suited for making the diesel favored in Europe, and it would be difficult for many European refiners to switch on short notice to a diet richer in Saudi grades that are higher in sulfur.

Various analysts have noted that US gas prices were already reflecting higher world oil prices, rather than the lagging WTI indicator. With April gasoline futures trading above $2.75/gal. on the NYMEX this morning, that would yield an effective average US retail unleaded regular price of around $3.45/gal, after factoring in excise and sales taxes and typical dealer margin. That's well above the $3.18/gal. average that the Lundberg Survey reported for last week. It would also be the highest average at the pump since October 2008, when prices were unraveling from their $4-plus peak of that summer.

It's too soon to predict an imminent return to those heights, although no one can gauge what will happen next in Libya, where it's not even clear who's in charge at the moment. (It does seem safe to predict that the US will not lead a NATO invasion of Libya, as Fidel Castro has apparently warned.) Still, it is worth thinking about how consumers might react if the current chaos persisted. The last time gas prices rose sharply, we saw significant drops in both US vehicle miles traveled and gasoline consumption. We also observed a noticeable increase in the sales of hybrid cars, which have lagged recently. There were no mass-market electric vehicles available at the time, but it doesn't require a leap of faith to envision a healthy boost in EV sales from their low initial levels, too. That would be good for both GM and Nissan, which have invested enormous sums--and their corporate reputations--bringing their Volt and Leaf models to market. It might not be so positive for sales of clean diesels, despite their high efficiency, if constraints on Libyan oil tighten European diesel supplies and drive up world diesel prices.

Events in North Africa and the Middle East will determine how high oil and gasoline prices rise in the weeks ahead. If Libya's dictator departs as readily as President Mubarak did, things could settle down quickly, unless the unrest spreads to another major oil producer. It's still too early to call this a new oil crisis, but it's not too soon to consider our options if it proved to be one. Although that would be a very unwelcome shock to an economy just regaining some momentum, we have many more options than in 1979, when the Iranian Revolution sent oil prices to levels that it took nearly three decades to exceed, in real terms.

Trade Missions

In the last week two powerful executives have taken important trips to meet with officials in nations that could supply the US with additional energy. These missions couldn't be more different in their public profile, but together they tell us a lot about the likely sources of our energy security over the next decade. President Bush is in Brazil, meeting with President Lula da Silva on the topic of ethanol production, and the CEO of ExxonMobil, Rex Tillerson, just returned from a visit to Libya, where he discussed that country's under-developed oil reserves with Muammar Qaddafi. Some might contrast these trips as the dawn of a new world of energy and a last hurrah of the old one, but I'd prefer to view them both as important aspects of the real world of energy in which we will live for the next couple of decades.

Despite problems of logistics and energy return, ethanol demand is growing, because of its environmental and energy security benefits. However, barring a prompt cost breakthrough on cellulosic ethanol technology, the US will be unable to meet the President's aggressive alternative fuel targets without help from imports. Brazil, which can produce large quantities of additional ethanol at lower costs than the US, represents the leading edge of the global trade that will be necessary to satisfy future biofuels demand in the US and other developed countries. Doing so won't be easy, because the US goal of 35 billion gallons per year by 2017 represent more than 3 times the worldwide production of fuel ethanol in 2006. That means that global ethanol output would have to sustain growth of 12% per year for 10 years, just to satisfy the US.

Creating a framework for high volumes of ethanol trade looks equally challenging, in part because of the distortions created by the US ethanol subsidy and the accompanying--and much misunderstood--tariff on imported ethanol. Today's Wall Street Journal described the lengths that producers and traders will go to, to avoid the 54 cent tariff, effectively capturing a 51 cent subsidy intended for American farmers, rather than their Latin American counterparts.

So where does Mr. Tillerson's visit fit in? Well, even at 35 billion gallons, ethanol would still only equate to a bit more than 2% of global oil production by 2017, or less than 10% of projected US oil consumption. The security of the remainder will have to be ensured in the same way that it has been for the last two-plus decades: by creating as diverse and reliable a base of suppliers as possible. Venezuela was a bulwark of that diversification throughout the 1980s and '90s, but it is now moving sharply into the "unreliable" category, with international companies of all stripes facing high political risk there. Libya can't replace Venezuela for us, even if Col. Qaddafi has turned over a new leaf, but boosting its output by a million barrels per day or more would shore up supplies to southern Europe, thus freeing up production from West Africa for Atlantic Basin customers. And for now Libya looks like a better bet than Iraq, where tens of billions of barrels of untapped oil are certain to remain in the ground until the civil war ends.

As important as President Bush's ethanol mission to Brazil is, applying the influence and leverage of the US government to opening up access to the oil reserves held by the national oil companies is even more urgent. In our understandable enthusiasm for alternative energy, we can't lose sight of the total energy mix, which will be dominated by fossil fuels for some time, yet. Balancing these complementary sources is a key element of national energy policy.