The results of the oil companies in the year 2000 have been exceptionally good, due to the high prices of crude oil and the refining margins. The profits of the year rose strongly compared with those of 1999, with a capital efficiency often close to 20%. The pre-production stages (petroleum and natural gas production) are a major contribution to the results, followed from far by the downstream sectors, chemistry and gas-electricity. In a context of weak stock markets, the market capitalisation of the companies has generally risen slightly. The growth of the financial resources has enabled the continuation of the reduction policies of indebtedness and repurchase of its own actions. However, investments have remained globally stable, the companies having anticipated a growth in the year 2000. The first semester of 2001 presents results that can be compared with those of the same period in the year 2000, yet with signs of decline at the end of the second semester.