Great analysis. However, when projecting domestic oil consumption of exporting countries out to 2028, the relative wealth of the local consumer market is relevant. If the price of oil is high enough (driven up by importing countries) the level of domestic consumption in the exporting countries might drop (unless the exporting countries firmly dedicate a % of production to their local market at a below-market price).  
This assumes that market price is the sole deciding factor in choosing how much to export. However, as we are seeing in Indonesia, rising fuel prices can cause political unrest and instability. Various governments might opt for keeping some portion at home regardless of world price precisely to maintain that stability. In particular, long term hereditary monarchies (like Saudi Arabia) have great incentive to keep the local populace reasonably happy in order to ensure their own place in that society.
I agree with Greyzone.  I predict that we are rapidly headed toward a world with negligible net oil exports, at least compared to current export levels.  
Hello Westexas,

I agree with your assessment.  If one assumes that nuclear war with Iran can be prevented by covert CIA/MI-6/Mossad action to foster an internal Iranian revolution to overthrow the current ruling powers, it still portends bad news for Iranian export amounts.

Consider the first graph in this link found at Energybulletin:

http://www.mees.com/postedarticles/oped/v49n14-5OD01.htm

Notice how much total Iranian production fell during the last revolution: ONE SIXTH of former output!  The production recovery, although accomplished in a quick time period, only rose to 2/3 of former output.  So even if we never go to war with Iran: the internal revolution will probably permanently remove any possibility of future Iranian exports as the remaining energy will be kept inside the borders!  Those countries dependent on Iranian exports are probably screwed either way.

Bob Shaw in Phx,AZ  Are Humans Smarter than Yeast?

There is a possible way to prevent having to use nukes on Iran. To generate regime change, all you need is to distribute those cartoons the Danes developed using a B-52 dropping pieces of paper, 60 tonnes worth. 4 cartoons per copier sheet but it pre-cut, the paper-bombing would result in massive unrest. Iran's government couldn't contain it. The result is severe instability.

A second idea I dreamed up is an upgrade of the Vietnam "Puff the Magic Dragon". For this, get an Airbus A380 and outfit it to carry and spray VX. You, the driver/pilot will have to wear a space suit. as you sit at its yoke. Drive/fly said plane over that road leading to Mecca during the annual pilgramage and LET THEM HAVE IT! That'll rile up EVERY moslem and generate regime change due to extreme unrest. Drive at about 300 feet up (OK, 100 metres) and spray away as you have your iPod going in your A/C helmet. Besides generating enough unrest to overwhealm Arab governments, you get to take out a bunch of terrorists.

Both cases end up being a case of "careful what you wish for, as you might just GET it!". In reality, there are really no easy solutions, like so many cases in Engineering but a lot worse off.

There are other reasons besides oil to expect turmoil and unrest in middle eastern societies. The Saudi market recently fell 28% in two and a half weeks and Dubai is down 53%.

The chief investment strategist for a major Wall street firm termed Dubai's 53% collapse "an adjustment phase" and told a Dubai daily newspaper, "We believe that Dubai is the Shanghai and Hong Kong of the Middle East." He'd better hope not. The Shaghai Stock Index remains down 42% from its bull market peak nearly five years ago, while Hong Kong's Hang Seng index is still down 13% from a peak in March 2000. Tuesday's Wall street Journal reports, "Analysts say the selloff in the Gulf shows few signs of spilling over broadly." It's a global "What, me worry?" in a mad world.

In an effort to prop their markets up, powerful interests appear to be borrowing their talking points from 1929. On Oct 29, 1929, as the firt wave of selling was crushing stock prices, John D Rockefeller issued the following statement: "Believing that fundamental conditions of the country are sound and that there is nothing in the business situation to warrant the destruction of values that has taken place on the exchanges, my son and I have for some days been purchasing sound common stocks." On March 15, 2006, Prince Alwaleed bin Talal issued a statement that implies even higher authorities are on the side of rising Saudi stock prices in 2006: "His Highness said that the Saudi economy is strong and fruitful and is backed by the Custodian of the Two Holy Mosques who supports the small investor. Buy and participate in companies that are respectable."

Like Rockefeller in 1929, Alwaleed bin Talal said he is getting in with a $2.7 billion investment in the Saudi market. Should investors take this as a bullish sign? In April and May 2000, after the initial fall in dot-com stocks, the same prince made the same bold $2 billion play - on internet stocks!...

...A quick outbreak of palpitations is already giving many investors heartache. A Saudi newspaper headline, "Hospitals on Bull Run as Markets go Down," hints at the hidden vulnerability behind many investors' confident exteriors. "A horde of Saudi investors have ended up in hospital with high blood pressure and acute stress after being unable to digest their losses," says the dispatch.

EWI, Mar 2006 (sorry, no link to subscription service)

It appears that investors may be on the verge of taking a bath in emerging markets, including the Middle East, as a series of bubbles peak and burst. I would expect the contagion to spread like the Asian Flu in the nineties, only more widely this time.

another example appears to be venezuela.
-pop
Virtually all oil-exporting countries subsidise oil usage for internal consumption. The exceptions I can think of are UK and Norway and these are expected soon to turn to oil-importers themselves.

I don't see reasons this practice not to continue with rising of oil prices - quite the opposite actually. Of course there will be some pressure on domestic consuption but it will be nowhere near the pressure on oil exports.

In fact, the subsidy the oil exporters give to their domestic consumers grows bigger with any increase in the international oil price.
So paradoxically, the internal absortion (consumption) rate will increase over time, as this subsidy makes their internal economies grow more energy-intensive. And as the difference between internal oil prices and international market prices grows bigger a growing chunk of oil is smuggled abroad for the profit of neighbours and smugglers.
So this factors add.. to a bigger, and increasing,(that is second derivative positive) growth in oil consumption in the producer countries.  
Norway is nowhere near a net importer.
Average production 2005:-  2.5mbpd
Average consumption 2005:- 0.17mbpd