It's true that Obama doesn't take money directly from oil companies, but then, no presidential, House or Senate candidate does. They can't: Corporations have been prohibited from contributing directly to federal candidates since the Tillman Act became law in 1907.
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When the Clinton campaign criticized Obama's ad, calling it "false advertising," Obama's campaign quickly noted that he didn't take money from political action committees or lobbyists.
We'd say the Obama campaign is trying to create a distinction without very much of a practical difference. Political action committee funds are pooled contributions from a company's or an organization's individual employees or members; corporate lobbyists often have a big say as to where a PAC's donations go. But a PAC can give no more than $5,000 per candidate, per election. We're not sure how a $5,000 contribution from, say, Chevron's PAC would have more influence on a candidate than, for example, the $9,500 Obama has received from Chevron employees giving money individually.
In addition, two oil industry executives are bundling money for Obama drumming up contributions from individuals and turning them over to the campaign. George Kaiser, the chairman of Oklahoma-based Kaiser-Francis Oil Co., ranks 68th on the Forbes list of world billionaires. He's listed on Obama's Web site as raising between $50,000 and $100,000 for the candidate. Robert Cavnar is president and CEO of Milagro Exploration LLC, an oil exploration and production company. He's named as a bundler in the same category as Kaiser.
We're not making any judgments about whether Obama is influenced by campaign contributions. In fact, we'd note that he singles out ExxonMobil in this ad, even though he's received more than $30,850 from individuals who work for the company. But we do think that in theory, contributions that come in volume from oil industry executives, or are bundled by them, can be every bit as influential as PAC contributions, if not more so.