A new report by congressional auditors finds that the Interior Department still has “limited” ability to identify and evaluate risks from offshore drilling projects, despite overhauling and toughening oversight after the 2010 BP oil spill.

“Interior continues to face challenges following its reorganization that may affect its ability to oversee oil and gas activities in the Gulf of Mexico. Specifically, Interior’s capacity to identify and evaluate risk remains limited, raising questions about the effectiveness with which it allocates its oversight resources,” the Government Accountability Office report states.

The July 30 report made public Wednesday arrives as Republicans, at their national convention in Tampa, Fla., are vowing to greatly expand offshore access for oil-and-gas companies if Mitt Romney wins the White House.