While I agree their has been political pressure exertion against Oil ad gas in general, there are other factors like profitability for oil companies and especially small operators, many went broke and lost everything or were bought out by big fish and consolidated when they had to pay to get rid of crude production in 2020.
Shutting down refineries isn't helping the retail cost of diesel and gas in the US either.
Some of the oil companies might follow their corporate mission statement of "highest return" to share holders and in some cases that means shutting down a functioning refinery.
Doing so certainly will not make gasoline or diesel less expensive.
Some of the shut down refineries since Covid
Many of which the claim is "to convert in some way to renewables"
I am going to take that with a grain of salt , because the immediate effect is higher prices at the pump.. Other things like storm damage and being old and unprofitable were mentioned as well
Shell Convent, St. James, LA
Marathon, Martinez, CA and Gallup, NM. Capacity: 161,000 bpd (Martinez); 27,000 bpd (Gallup)
Phillips 66, Rodeo, CA and Belle Chasse, LA. Capacity: CA: 120,200 bpd, LA: 255,000 bpd
Hollyfrontier, Cheyenne, WY. Capacity: 52,000 bpd
Calcasieu Refining, Lake Charles, LA. Capacity: 135,500 bpd
Limetree Bay Energy, St. Croix, USVI. Capacity: 210,000 bpd
A ninth, LYONDELLBASELL planned in 2025 to shut down its refinery.. and so on.
This info is about a year old so looking to see if some of these plants are back on line or if others have also closed.
If the US isn’t ready to move to biofuels, it could become a slippery slope.
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