For those interested in the latest disagreements over oil taxes in Uganda, Revenue Watch has produced a useful number-crunching exercise which, for all its complexities, explores the notion of justice: have the countries got a fair deal from the oil companies (or, as John Atta Mills might put it, if we've interpreted his words correctly, are they "vampires
.?" The author is an industry consultant, so may not be particularly inclined to take the countries' side -- but the analysis is still a useful reference point.
The analysis is here