
Exxon-Mobil Corp. and Apache Corp. will hold talks with Argentina's YPF next month to discuss further investments in the country's Vaca Muerta shale formation, said a YPF official briefed on the matter.

Argentina’s nationalized oil and gas company YPF and the head of Latin American and African operations for Chevron Corp. are discussing a potential agreement to develop the massive Vaca Muerta shale oil and gas formation in the Patagonian province of Neuquén.

At least four leading US oil corporations are interested in investing in Argentina’s nationalized YPF but are demanding a law that guarantees investments, direct export of oil and remittance of benefits.

Brazilian judge denied an injunction seeking to bar oil company Chevron Corp and drill-rig operator Transocean Ltd from operating in Brazil after two offshore oil leaks, a federal court in Rio de Janeiro said this week.

Brazilian authorities identified a small oil leak off the shores of Rio de Janeiro on Saturday, the latest in a series of spills that has raised safety concerns over the development of some of the world's largest petroleum reserves.

Brazil's largest oil workers union filed a lawsuit against US oil company Chevron and drilling firm Transocean that seeks to cancel their rights to operate in the country as the result of an offshore oil spill last November.

A Brazilian court barred 17 executives from Chevron and Transocean from leaving Brazil, pending criminal charges related to a high-profile oil spill last November. A second oil spill detected last week further complicated the situation.

Transpetro, a subsidiary of Brazil's state-run energy giant Petrobras, said Thursday it had detected an oil leak off the coast of Rio Grande do Sul state but did not know how much had spilled.

Chevron Canada Ltd., a big player in Canada's offshore oil industry, has struck a deal with Norwegian and Spanish oil companies to carry out exploration off the coast of Atlantic Canada.

Brazil's Environment Institute ordered US oil giant Chevron to pay another fine related to the early November oil spill off the coast of Rio de Janeiro.