A lowering government taxation on the oil sold by private operators in the Tupi region.
B replacing concession contracts with production-sharing agreements with international companies.
C forbidding private companies to operate oil producing plants in the newly discovered fields.
D forcing Petrobras to pay a participation tax of 10-40% on its production to private companies.
E increasing taxes only on oil produced from the small fields, according to volume, location, depth and age.