Energy industry develops nontoxic fracking fluids

PITTSBURGH (AP) — The oil and gas industry is trying to ease environmental concerns by developing nontoxic fluids for the drilling process known as fracking, but it's not clear whether the new product will be widely embraced by drilling companies.

YPF, Chevron sign Argentina shale pact

BUENOS AIRES, Argentina (AP) — Argentina's cash-strapped state energy company signed a partnership deal Wednesday with Chevron Corp. for a "massive development" of the South American country's vast nonconventional oil and gas resources.