Washington State has a carbon tax on the ballot in the November election. The oil industry is fighting it tooth and nail, but it also has high-profile backers.

A $3 million boost in spending is largely due to an influx of cash from BP America, one of the major oil companies operating refineries in the state. Phillips66, formerly the led donor, has given $7.20 million, followed by Andeavor (the former Tesoro) at $4.3 million.

Supporters of the carbon fee have raised over $12 million, or half of what Big Oil has put into defeating the measure. Its backers include businesses such as Microsoft, the American Lung Assn., Gov. Jay Inslee, environmentalist and labor leaders.

The latest infusion to the “Yes” side is a $1 million donation from former New York Mayor Michael Bloomberg. Microsoft cofounder Bill Gates has donated $1 million.

Interesting that the oil industry is tentatively supporting a national carbon tax at the same time they are fighting this so aggressively. It suggests they are afraid of these state-level taxes and would rather do some wheeling and dealing in Congress to get a weaker deal in place that would block stronger taxes like this one.