Norway’s Equinor ASA , Brazil’s Dommo Energia SA ( DMMO3.SA ) and Anglo-French firm Perenco are among at least six oil producers that have registered coronavirus cases among employees or contractors at facilities off the coast of Brazil, according to industry and regulatory sources. Royal Dutch Shell PLC ( RDSa.L ) and Brazil’s Enauta Participacoes SA ENAT3.SA have registered one case each. Hundreds of cases have been recorded at oilfields operated by state-run Petrobras. The infections illustrate the threat the virus poses to workers toiling in cramped quarters miles offshore. They also have raised questions about the effectiveness of extensive testing efforts to contain the pandemic’s spread on platforms. Alongside industries like mining and meatpacking, oil production has come under scrutiny during the pandemic as employees are forced to work, sleep and eat in confined areas. That is particularly true on offshore […]