Cause and effect is a bit of a baffler here though. The summary stats/top 20 figures suggest there is a TX bias to funding which in turn suggests to me that oil companies are funding politicians from their own states. Ted Cruz, Ted (R-TX) and Beto O'Rourke (D-TX) combine to a disproportionately large $1 mil, and probably represent a lot of people who are quite happy in the oil industry.

So it seems reasonable that despite the money the people who are receiving it might rationally support O&G regardless because it is great for their constituents.

It isn't because of what they were taught in school though, that much is pretty clear.