When asked about if she wiped her server clean, she asked "What, with a cloth?" Anybody in Hillary's position knows that that's not what wiping a server clean means. Even if that wasn't a lie, that clearly shows incompetence. Just my two cents on the issue. :)
What you state is false with respect to "big oil" donating and being one of her largest contributors, and she never denied receiving donations from "Wall Street" (aka people in the financial industries). Every Democratic Party and Republican Party candidate has received contributions from both the energy/oil sectors and the financial sector.