Exxon, the Chase for Reserves, and the Oil Sands
The answer is that it hasn't done so, not at least according to the rules of the Securities and Exchange Commission, which governs such matters. When you examine Exxon's annual filings for 1999-2008, the company has had a quite-normal -- for oil companies, that is -- four years of exceeding 100% replacement, and five years not. For instance, for 2008 the company issued a statement saying that it possessed 22.8 billion barrels of proven reserves; yet its 10-K filing with the SEC reported just 21.1 billion barrels in proven reserves (to get there, see page 7 of the 10-K, and tally up the developed and undeveloped reserves in the consolidated and equity categories).
So I gave Exxon a call. How do you get from 21.1 billion barrels to 22.8 billion barrels? I asked.
Add in the oil sands, was the reply.
That would be the approximately 1.8 billion barrels of oil equivalent that Exxon has booked so far in its Alberta, Canada, oil sand holdings (see pages 22 and 23 of the 10-K; add the Syncrude and Kearl reserves).
Strictly speaking, SEC rules don't permit comingling of oil that's pumped out of the ground, along with oil sands -- exceptionally tar-like material that in most cases isn't pumped, but instead is actually mined like a mineral, then mixed with chemicals in order to move it to a refinery for processing. But companies can comingle them in public announcements such as news releases and annual reports that are read by reporters, investors and Wall Street analysts, according to an SEC spokesman.
This isn't criticism of Exxon. Rather, it's simply evidence that Exxon, like all of Big Oil, is mortal. I wrote about this in a piece earlier this week for Business Week.
In fact, Exxon has been highly critical of how the SEC requires it to report reserves. It has said that it has its own, rigorous, internal methods of assessing its proven reserves, and that this process far more accurately reflects what it possesses.
Why does reserve replacement attract so much attention? Because investors and company analysts regard this metric as a primary measure of an oil company's health. If a company's reserve base is consistently stable or growing, then it's regarded as maintaining its assets as a base for growth. If the reserve base is consistently shrinking, a company can be thought to be cannibalizing itself.
For 2008, for instance, Shell says that it replaced just 95% of what it drilled. The year before, Chevron reported a replacement rate of just 10-15%. That attracted them much critical commentary.
And Exxon? It reported that it replaced 101% of its production in 2007, in addition to 103% in 2008. Yet its SEC report shows that its proven reserves actually dropped both years -- to 21.7 billion barrels from 22.1 billion barrels from 2006 to 2007; and, as mentioned above, on down to 21.1 billion barrels in 2008. The sands made the difference. Without the sands, Exxon's reserve replacement last year would have been about 27%.
The situation will change starting next year. The SEC is going to start allowing companies to combine the oil sands with other reserves. The decision came after oil companies argued strenuously that new technology makes unconventional oil equivalent to conventional reserves, so that now there is no reason not to permit companies to put them in the same basket.
Whatever the case, for the record below are the comparisons for the last nine years, including links for most of them to both the 10-Ks and the relevant news release or annual report.
Exxon's Reserve Replacement (in barrels of oil equivalent)
| | Oil sands | | SEC-10K | In News Release | |
| 1999 | 577 mln | | 21.3 b | | | ||
| 2000 | 610 m | | 21.5 b | | | | |
| 2001 | 821 m | | 21.5 b | | | | |
| 2002 | 800 m | | | | | ||
| 2003 | 781 m | | | | | ||
| 2004 | 757 m | | | | | ||
| 2005 | 738 m | | | | | ||
| 2006 | 718 m | | | | | ||
| 2007 | 694 m | | | | | ||
| 2008 | | | | | |||
Labels: big oil, Exxon, kearl, oil sands, reserve replacement




















