Under the agreement, CPFL will provide electricity for a car recharging station at Bosch's local headquarters in Campinas, São Paulo state.
The country's consumer protection agency has detected the sale of incomplete liters at more than 30 gas stations in Guerrero state.
State oil company Ecopetrol said it has taken advantage of new, high-demand markets.
Paulo Valois, a Brazilian lawyer who specializes in the oil and gas industry, spoke to BNamericas about the recently approved bill that lifts restrictions on private operators in pre-salt areas, which could lead to a "return to a positive business environment."
Production of polyethylene (PE) in Latin America is expected to increase next year.
The public interest suit claims Brazil's state-run oil company is selling the assets without a competitive bidding process.
The sale is part of state oil company's efforts to streamline opreations.