by John BIERS and Daniel HOFFMAN Agence France-Presse NEW YORK, United States (AFP) — Some 2.7 million households in Texas were still without power as of Wednesday morning in the wake of extremely cold weather buffeting the region. But while the unusual Arctic air mass has lashed numerous states with snow and sleet with more on the way Thursday, Texas, the heart of the country’s oil industry, has seen the worst of the power outages. […]