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.
> suggests to me that oil companies are funding politicians from their own states
This makes sense. I assume they're expecting more out of this package than some stubborn climate change denialism.
"It is difficult to get a man to understand something, when his salary depends on his not understanding it." ― Upton Sinclair